Flex BMR464 User manual

INTERNAL USE ONLY
PRODUCT SPECIFICATION 1 (4)
Prepared (Subject resp) No.
jidgjian Grace Jiang 1/1301-BMR 464 Uen
Approved (Document resp) Checked Date Rev
jidgjian Grace Jiang 7/4/2019 G Y
Key Features
•Small package
30.85 x 20.0 x 8.2 mm (1.215 x 0.787 x 0.323 in)
SIP: 33.0 x 7.6 x 18.1 mm (1.30 x 0.30 x 0.713 in)
•0.6 V - 3.3 V output voltage range
•High efficiency, typ. 97.2% at 5Vin, 3.3Vout half load
•Configuration and Monitoring via PMBus
•Dynamic Loop Compensation (DLC) & fast loop
transient response
•Synchonization & phase spreading
•Current sharing, Voltage Tracking & Voltage margining
•MTBF 14.2 Mh
General Characteristics
Fully regulated
For narrow board pitch applications (15 mm/0.6 in)
Non-Linear Response for reduction of decoupling cap.
Input under voltage shutdown
Over temperature protection
Output short-circuit & Output over voltage protection
Remote control & Power Good
Voltage setting via pin-strap or PMBus
Configurable via Graphical User Interface
ISO 9001/14001 certified supplier
Highly automated manufacturing ensures quality
Safety
A
pprovals Design for Environment
Meets requirements in high-temperature
lead-free soldering processes.
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
INTERNAL USE ONLY
TABLE OF CONTENTS
1 (1)
Prepared (Subject resp)
No.
BPOW 00201-00152 Uen
Approved (Document resp)
Checked
Date
Rev
7/10/2009
PD1
D
Contents
Ordering Information ............................................................. 2
General Information
............................................................. 2
Safety Specification
............................................................. 3
Absolute Maximum Ratings
............................................................. 4
Electrical Specification
40A/ 0.6
-3.3V Through hole and Surface mount version BMR4640002, BMR4641002 ................ 5
40A/ 0.6
-3.3V Single in Line version (SIP) BMR4642002 ...................................... 14
50A/ 0.6
-3.3V DLC, Through hole and Surface mount version BMR4640008, BMR4641008 .............. 23
50A/ 0.6
-3.3V DLC, Single in Line version (SIP) BMR4642008 ...................................... 32
50A/ 0.6
-3.3V Single in Line version (SIP) BMR4642012 ...................................... 41
EMC Speci
fication ........................................................... 49
Operating Information
........................................................... 49
Thermal Consideration
........................................................... 60
Co
nnections ........................................................... 61
Mechanical Information
........................................................... 71
Soldering Information
– Surface Mounting and Hole Mounting (Laydown version) ................................................... 74
Delivery
Package Information (Laydown version) ........................................................... 75
Soldering Information
– Hole Mounting (SIP version) ........................................................... 76
Delivery
Package Information (SIP version) ........................................................... 76
Product Qualification Specification ........................................................... 77
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification

Ordering Information
Product program
Output
BMR464x002/001 (x=0,1,2)
0.6-3.3 V, 40 A/ 132 W
BMR464x008/001 (x=0,1,2)
0.6-3.3 V, 50 A/ 165 W
BMR464x012/001 (x=0,1,2)
0.6-3.3 V, 50 A/ 165 W
Product number and Packaging
BMR 464 n1n2n3n4/n5n6n7n8
Options
n1
n2
n3
n4
/
n5
n6
n7
n8
Mounting ο/
Mechanical ο/
Hardware
Variants οο/
Configuration file
/
ο ο ο
Packaging
/
ο
Options
Description
n1
n2
n3n4
n5n6n7
n8
0
1
2
0
1
3
4
02
08
12
001
002
B
C
Through hole mount version (TH)
Surface mount version (SMD)
Single in line (SIP)
Standard mechanical option
Long pin option, 5.5mm pin length (for
SIP)
Short pin option, 3.28mm pin length (for
SIP)
LB pin option, 4.57mm pin length (for
SIP)
40 A
50 A, Dynamic Loop Compensation
(DLC)
50 A, No DLC (for SIP)
CTRL pin positive logic (active high)
CTRL pin negative logic (active low)
Antistatic tray of 100 products (SIP only)
Antistatic tape & reel of 130 products
(Sample delivery avalable in lower
quantities. Not for SIP)
Example: Product number BMR4640002/001C equals a through-hole
mounted, open frame, PMBus and analog pin strap, positive RC logic,
standard configuration variant, package tape & reel.
General Information
Reliability
The failure rate (
λ
) and mean time between failures
(MTBF= 1/λ) is calculated at max output power and an
operating ambient temperature (TA) of +40°C. Flex uses
Telcordia SR-332 Issue 2 Method 1 to calculate the mean
steady-state failure rate and standard deviation (σ).
Telcordia SR-332 Issue 2 also provides techniques to
estimate the upper confidence levels of failure rates based
on the mean and standard deviation.
Mean steady-state failure rate, λ
Std. deviation, σ
71 nFailures/h
12.7 nFailures/h
MTBF (mean value) for the BMR 464 series = 14.2 Mh.
MTBF at 90% confidence level = 11.52 Mh
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2011/65/EU and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Flex products
are found in the Statement of Compliance document.
Flex fulfills and will continuously fulfill all its obligations
under regulation (EC) No 1907/2006 concerning the
registration, evaluation, authorization and restriction of
chemicals (REACH) as they enter into force and is through
product materials declarations preparing for the obligations
to communicate information on substances in the products.
Quality Statement
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, Six Sigma, and SPC are intensively in use to
boost the continuous improvements strategy. Infant
mortality or early failures in the products are screened out
and they are subjected to an ATE-based final test.
Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged
work force, contribute to the high quality of the products.
Warranty
Warranty period and conditions are defined in Flex General
Terms and Conditions of Sale.
Limitation of Liability
Flex does not make any other warranties, expressed or
implied including any warranty of merchantability or fitness
for a particular purpose (including, but not limited to, use in
life support applications, where malfunctions of product can
cause injury to a person’s health or life).
© Flex 2019
The information and specifications in this technical
specification is believed to be correct at the time of
publication. However, no liability is accepted for
inaccuracies, printing errors or for any consequences
thereof. Flex reserves the right to change the
contents of this technical specification at any time without
prior notice.
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
2

Safety Specification
General information
Flex Power DC/DC converters and DC/DC regulators are
designed in accordance with the safety standards
IEC 62368-1, EN 62368-1 and UL 62368-1 Audio/video,
information and communication technology equipment -
Part 1: Safety requirements
IEC/EN/UL 62368-1 contains requirements to prevent injury
or damage due to the following hazards:
•Electrical shock
•Electrically-caused fire
•Injury caused by hazardous substances
•Mechanically-caused injury
•Skin burn
•Radiation-caused injury
On-board DC/DC converters, Power interface modules and
DC/DC regulators are defined as component power
supplies. As components they cannot fully comply with the
provisions of any safety requirements without “conditions of
acceptability”. Clearance between conductors and between
conductive parts of the component power supply and
conductors on the board in the final product must meet the
applicable safety requirements. Certain conditions of
acceptability apply for component power supplies with
limited stand-off (see Mechanical Information for further
information). It is the responsibility of the installer to ensure
that the final product housing these components complies
with the requirements of all applicable safety standards and
regulations for the final product.
Component power supplies for general use shall comply
with the requirements in IEC/EN/UL 62368-1. Product
related standards, e.g. IEEE 802.3af Power over Ethernet,
and ETS-300132-2 Power interface at the input to telecom
equipment, operated by direct current (dc) are based on
IEC/EN/UL 60950-1 with regards to safety.
Flex Power DC/DC converters, Power interface modules
and DC/DC regulators are UL 62368-1 recognized and
certified in accordance with EN 62368-1. The flammability
rating for all construction parts of the products meet
requirements for V-0 class material according to
IEC 60695-11-10, Fire hazard testing, test flames – 50 W
horizontal and vertical flame test methods.
Non - isolated DC/DC regulators
The DC/DC regulator output is ES1 energy source if the
input source meets the requirements for ES1 according to
IEC/EN/UL 62368-1.
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
3

Ericsson Internal
PRODUCT SPECIFICATION 1 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Absolute Maximum Ratings
Characteristics min typ max Unit
TP1, TP2 Operating temperature (see Thermal Consideration section) -40 125 °C
TS Storage temperature -40 125 °C
VI Input voltage (See Operating Information Section for input and output voltage relations) -0.3 16 V
Logic I/O voltage CTRL, SA0, SA1, SALERT, SCL, SDA, VSET, SYNC, GCB, PG -0.3 6.5 V
Ground voltage differential -S, PREF, GND -0.3 0.3 V
Analog pin voltage VO, +S, VTRK -0.3 6.5 V
Stress in excess of Absolute Maximum Ratings may cause pe rmanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are
normally tested with one parameter at a time exceeding the limits in the Electrical Specification. If exposed to stress above these limits, function and performance
may degrade in an unspecified manner.
Configuration File
This product is designed with a digital control circuit. The control circuit uses a configuration file which determines the functionality and performance of the product.
The Electrical Specification table shows parameter values of functionality and performance with the default configuration file, unless otherwise specified. The default
configuration file is designed to fit most application needs w ith focus on hi gh efficiency. If different characteristics are required it is possible to change the
configuration file to optimize certain performance characteristics. Note that current sharing operation requires changed configuration file. See application notes
A
N307 for further information.
In this Technical specification examples are included to show the possibilities with digital control. See Operating Information section for information about trade offs
when optimizing certain key performance characteristics.
Fundamental Circuit Diagram
CI = 140 μF, CO = 400 μF
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
4

Ericsson Internal
PRODUCT SPECIFICATION 2 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Electrical Specification BMR 464 0002, BMR 464 1002
TP1 = -30 to +95 °C, VI = 4.5 to 14 V, VI > VO + 1.0 V
Typical values given at: TP1 = +25 °C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.
Default configuration file, 190 10-CDA 102 0206/001.
External CIN = 470 µF/10 mΩ, COUT = 470 µF/10 mΩ. See Operating Information section for selection of capacitor types.
Sense pins are connected to the output pins.
Characteristics Conditions min typ max Unit
VI Input voltage rise time monotonic 2.4 V/ms
VO
Output voltage without pin strap 1.2 V
Output voltage adjustment range 0.60 3.3 V
Output voltage adjustment including
margining See Note 17 0.54 3.63 V
Output voltage set-point resolution ±0.025 % FS
Output voltage accuracy
Including line, load, temp.
See Note 14 -1 1 %
Current sharing operation
See Note 15 -2 2 %
Internal resistance +S/-S to VOUT/GND 4.7 Ω
Line regulation
VO = 0.6 V 2
mV
VO = 1.0 V 3
VO = 1.8V 3
VO = 3.3 V 3
Load regulation; IO = 0 - 100%
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8V 2
VO = 3.3 V 2
VOac
Output ripple & noise
CO = 470 μF (minimum external
capacitance). See Note 11
VO = 0.6 V 15
mVp-p
VO = 1.0 V 20
VO = 1.8 V 25
VO = 3.3 V 35
IO Output current See Note 18 0.001 40 A
IS Static input current at max IO
VO = 0.6 V 2.45
A
VO = 1.0 V 3.80
VO = 1.8 V 6.49
VO = 3.3 V 11.58
Ilim Current limit threshold 42 52 A
Isc Short circuit
current
RMS, hiccup mode,
See Note 3
VO = 0.6 V 10 A
VO = 1.0 V 9
VO = 1.8 V 9
VO = 3.3 V 7
η Efficiency
50% of max IO
VO = 0.6 V 84.6
%
VO = 1.0 V 89.7
VO = 1.8 V 93.3
VO = 3.3 V 95.3
max IO
VO = 0.6 V 81.8
%
VO = 1.0 V 87.7
VO = 1.8 V 92.4
VO = 3.3 V 95.0
Pd Power dissipation at max IO
VO = 0.6 V 5.37
W
VO = 1.0 V 5.60
VO = 1.8 V 5.92
VO = 3.3 V 6.98
Pli
Input idling
power
(no load)
Default configuration:
Continues Conduction
Mode, CCM
VO = 0.6 V 1.10
W
VO = 1.0 V 1.10
VO = 1.8 V 1.40
VO = 3.3 V 2.20
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
5

Ericsson Internal
PRODUCT SPECIFICATION 3 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Characteristics Conditions min typ max Unit
PCTRL Input standby
power
Turned off with
CTRL-pin
Default configuration:
Monitoring enabled,
Precise timing enabled
180 mW
Ci Internal input capacitance 140 μF
Co Internal output capacitance 400 μF
COUT
Total external output capacitance See Note 9 470 30 000 μF
ESR range of capacitors
(per single capacitor) See Note 9 5 30 mΩ
Vtr1
Load transient
peak voltage
deviation
(H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/μs
CO = 470 μF (minimum
external capacitance)
see Note 12
VO = 0.6 V 250
mV
VO = 1.0 V 250
VO = 1.8 V 240
VO = 3.3 V 220
ttr1
Load transient
recovery time,
Note 5
(H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/μs
CO = 470 μF (minimum
external capacitance)
see Note 12
VO = 0.6 V 150
μs
VO = 1.0 V 100
VO = 1.8 V 100
VO = 3.3 V 50
fs
Switching frequency 320 kHz
Switching frequency range, see Note 19 PMBus configurable 200-640 kHz
Switching frequency set-point accuracy -5 5 %
Control Circuit PWM Duty Cycle 5 95 %
Minimum Sync Pulse Width 150 ns
Input Clock Frequency Drift Tolerance External clock source -13 13 %
Input Under Voltage
Lockout,
UVLO
UVLO threshold 3.85 V
UVLO threshold range PMBus configurable 3.85-14 V
Set point accuracy -150 150 mV
UVLO hysteresis 0.35 V
UVLO hysteresis range PMBus configurable 0-10.15 V
Delay 2.5 μs
Fault response See Note 3 Automatic restart, 70 ms
Input Over Voltage
Protection,
IOVP
IOVP threshold 16 V
IOVP threshold range PMBus configurable 4.2-16 V
Set point accuracy -150 150 mV
IOVP hysteresis 1 V
IOVP hysteresis range PMBus configurable 0-11.8 V
Delay 2.5 μs
Fault response See Note 3 Automatic restart, 70 ms
Power Good, PG,
See Note 2
PG threshold 90 % VO
PG hysteresis 5 % VO
PG delay 10 ms
PG delay range PMBus configurable 0-500 s
Output voltage
Over/Under Voltage
Protection,
OVP/UVP
UVP threshold 85 % VO
UVP threshold range PMBus configurable 0-100 % VO
UVP hysteresis 5 % VO
OVP threshold 115 % VO
OVP threshold range PMBus configurable 100-115 % VO
UVP/OVP response time 25 μs
UVP/OVP
response time range PMBus configurable 5-60 μs
Fault response See Note 3 Automatic restart, 70 ms
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
6

Ericsson Internal
PRODUCT SPECIFICATION 4
(
21
)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Characteristics Conditions min typ max Unit
Over Current
Protection,
OCP
OCP threshold 48 A
OCP threshold range PMBus configurable 0-48 A
Protection delay, See Note 4 32 Tsw
Protection delay range PMBus configurable 1-32 Tsw
Fault response See Note 3 Automatic restart, 70 ms
Over Temperature
Protection,
OTP at P1
See Note 8
OTP threshold 120 C
OTP threshold range PMBus configurable -40…+120 C
OTP hysteresis 15 C
OTP hysteresis range PMBus configurable 0-160 C
Fault response See Note 3 Automatic restart, 240 ms
VIL Logic input low threshold SYNC, SA0, SA1, SCL, SDA,
GCB, CTRL, VSET
0.8 V
VIH Logic input high threshold 2 V
IIL Logic input low sink current CTRL 0.6 mA
VOL Logic output low signal level
SYNC, SCL, SDA, SALERT,
GCB, PG
0.4 V
VOH Logic output high signal level 2.25 V
IOL Logic output low sink current 4 mA
IOH Logic output high source current 2 mA
fSMB SMBus Operating frequency 10 100 kHz
tset Setup time, SMBus See Note 1 250 ns
thold Hold time, SMBus See Note 1 300 ns
tfree Bus free time, SMBus See Note 1 2 ms
Cp Internal capacitance on logic pins 10 pF
Initialization time See Note 10 35 ms
Output Voltage
Delay Time
See Note 6
Dela
y
duration See Note 16 10 ms
Dela
y
duration ran
g
e PMBus confi
g
urable 2-500000
Delay accuracy
turn-on
Default configuration:
CTRL controlled
Precise timing enabled
±0.25 ms
PMBus controlled
Precise timing disabled
Current sharin
g
operation
-0.25/+4 ms
Delay accuracy
turn-of
f
-0.25/+4 ms
Output Voltage
Ramp Time
See Note 13
Ramp duration 10 ms
Ramp duration ran
g
e PMBus confi
g
urable 0-200
Ramp time accuracy 100 µs
Current sharin
g
operation 20 %
VTRK Input Bias Current VVTRK = 5.5 V 110 200 µA
VTRK Tracking Ramp Accuracy (VO - VVTRK)
100% tracking, see Note 7 -100 100 mV
Current sharing operation
2 phases, 100% tracking
VO = 1.0 V, 10 ms ramp
±100 mV
VTRK Regulation Accuracy (VO - VVTRK)
100% Trackin
g
-1 1 %
Current sharing operation
100% Trackin
g
-2 2 %
Current difference between products in a current
sharing group
Steady state operation Max 2 x READ_IOUT monitoring accuracy
Ramp-up 4 A
Number of products in a current sharing group 7
Monitoring accuracy
READ_VIN vs VI 3 %
READ_VOUT vs VO 1 %
READ_IOUT vs IO IO = 0-40 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 1.0 V ±2.5 A
READ_IOUT vs IO IO = 0-40 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 0.6-3.3 V ±4 A
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
7

Ericsson Internal
PRODUCT SPECIFICATION 5
(
21
)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Note 1: See section I2C/SMBus Setup and Hold Times – Definitions.
Note 2: Monitorable over PMBus Interface.
Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operating Information and AN302 for
other fault response options.
Note 4: Tsw is the switching period.
Note 5: Within +/-3% of VO
Note 6: See section Soft-start Power Up.
Note 7: Tracking functionality is designed to follow a VTRK signal with slew rate < 2.4 V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth.
Note 8: See section Over Temperature Protection (OTP).
Note 9: See section External Capacitors.
Note 10: See section Initialization Procedure.
Note 11: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise.
Note 12: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors.
Note 13: Time for reaching 100% of nominal Vout.
Note 14: For Vout < 1.0 V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus.
Note 15: Accuracy here means deviation from ideal output voltage level given by configured droop and actual load. Includes line, load and temperature variations.
Note 16: For current sharing the Output Voltage Delay Time must be reconfigured to minimum 15 ms, see AN307 for details.
Note 17: For steady state operation above 1.05 x 3.3 V, please contact your local Flex sales representative.
Note 18: A minimum load current is not required if Low Power mode is used (monitoring disabled).
Note 19: Please check with your local Flex Sales representative if you intend to adjust the frequency exceeds 320 KHz ±10%.
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
8

Ericsson Internal
PRODUCT SPECIFICATION 6 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Efficiency and Power Dissipation
BMR 464 0002, BMR 464 1002
Efficiency vs. Output Current, VI = 5 V Power Dissipation vs. Output Current, VI = 5 V
Efficiency vs. load current and output voltage:
TP1 = +25 °C, VI=5 V, fsw = 320 kHz, CO = 470 µF/10 mΩ.
Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 5 V, fsw = 320 kHz, CO= 470 µF/10 mΩ.
Efficiency vs. Output Current, VI = 12 V Power Dissipation vs. Output Current, VI = 12 V
Efficiency vs. load current and output voltage at
TP1 = +25 °C, VI = 12 V, fsw = 320 kHz, CO = 470 µF/10 mΩ.
Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 12 V, fsw = 320 kHz, CO = 470 µF/10 mΩ.
Efficiency vs. Output Current and
Switching Frequency
Power Dissipation vs. Output Current and
Switching frequency
Efficiency vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 mΩ
Default configuration except changed frequency
Dissipated power vs. load current and switch frequency at
TP1 = +25 °C. VI = 12 V, VO = 1.0 V, CO = 470 µF/10 mΩ
Default configuration except changed frequency
75
80
85
90
95
100
0 8 16 24 32 40
[%]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
0 8 16 24 32 40
[W]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
75
80
85
90
95
100
0 8 16 24 32 40
[%]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
0 8 16 24 32 40
[W]
[
A
]
0.6 V
1.0 V
1.8 V
3.3 V
70
75
80
85
90
95
0 8 16 24 32 40
[%]
[A]
200
kHz
320
kHz
480
kHz
640
kHz
0
2
4
6
8
0 8 16 24 32 40
[W]
[
A
]
200
kHz
320
kHz
480
kHz
640
kHz
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
9

Ericsson Internal
PRODUCT SPECIFICATION 7 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Load Transient
BMR 464 0002, BMR 464 1002
Load Transient vs. External Capacitance, VO = 1.0 V Load Transient vs. External Capacitance, VO = 3.3 V
Load transient peak voltage deviation vs. external capacitance.
Step-change (10-30-10 A). Parallel coupling of capacitors with 470 µF/10 mΩ,
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient peak voltage deviation vs. external capacitance.
Step-change (10-30-10 A). Parallel coupling of capacitors with 470 µF/10 mΩ,
TP1 = +25 °C, VI= 12 V, VO= 3.3 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient vs. Switch Frequency Output Load Transient Response, Default PID/NLR
Load transient peak voltage deviation vs. frequency.
Step-change (10-30-10 A).
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 mΩ
Output voltage response to load
current step-change (10-30-10 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt = 2 A/µs, fsw = 320 kHz,
CO = 470 µF/10 mΩ
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Note: In the load transient graphs, the worst-case scenario (load step 30-10 A) has been
considered.
0
50
100
150
200
250
012345
[mV]
[mF]
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt. PID/NLR
0
50
100
150
200
250
012345
[mV]
[mF]
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt. PID/NLR
50
100
150
200
250
300
200 300 400 500 600
[mV]
[kHz]
Default
PID/NLR
Opt. PID,
No NLR
Default PID,
Opt. NLR
Opt.
PID/NLR
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
10

Ericsson Internal
PRODUCT SPECIFICATION 8 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Output Current Characteristic
BMR 464 0002, BMR 464 1002
Output Current Derating, VO = 0.6 V Output Current Derating, VO = 1.0 V
A
vailable load current vs. ambient air temperature and airflow at
VO = 0.6 V, VI = 12 V. See Thermal Consideration section.
Available load current vs. ambient air temperature and airflow at
VO= 1.0 V, VI = 12 V. See Thermal Consideration section.
Output Current Derating, VO = 1.8 V Output Current Derating, VO= 3.3 V
A
vailable load current vs. ambient air temperature and airflow at
VO = 1.8 V, VI = 12 V. See Thermal Consideration section.
A
vailable load current vs. ambient air temperature and airflow at
VO = 3.3 V, VI = 12 V. See Thermal Consideration section.
Current Limit Characteristics, VO = 1.0 V Current Limit Characteristics, VO = 3.3 V
Output voltage vs. load current at TP1 = +25 °C, VO = 1.0 V.
Note: Output enters hiccup mode at current limit.
Output voltage vs. load current at TP1 = +25 °C, VO = 3.3 V.
Note: Output enters hiccup mode at current limit.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0,0
0,3
0,6
0,9
1,2
40 42 44 46 48 50
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
0,0
1,0
2,0
3,0
4,0
40 42 44 46 48 50
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
VI = 4.5, 5.0 V
VI = 4.5, 5.0 V
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
11

Pr
e
E
A
Ap
E
A
T
y
O
O
u
O
u
V
I
=
I
O
=
O
u
O
u
O
u
Ou
t
Par
1
2
3
4
[
1
2
3
4
e
pared (also subject
A
B/FJB/GM
proved
A
B/FJB/GM
y
pical Char
a
utput Volta
g
u
tput Ripple
u
tput voltage rippl
e
=
12 V, C
O
= 470
=
40 A
u
tput Ripple
v
u
tput voltage rippl
e
u
tput Ripple
v
t
put voltage ripple
a
llel coupling of c
a
0
1
0
2
0
3
0
4
0
57
mV
pk-pk
]
0
1
0
2
0
3
0
4
0
01
[mV]
responsible if other)
QLAANDR
(Ksenia Har
a
cteristics
g
e
& Noise, VO
=
e
at: T
P1
= +25 °C
µF/10 mΩ
v
s. Input Vol
t
e
V
pk-pk
at: T
P1
= +
v
s. External
C
V
pk-pk
at: T
P1
= +
2
a
pacitors with 47
0
9
2
3
risen)
=
1.0 V
, Trace: output v
o
Time scale: (2
µ
t
age
25°C, C
O
= 470 µ
F
C
apacitance
2
5 °C, V
I
= 12 V, I
O
0
µF/10 mΩ,
11 1
3
3
4
Checked
(MICR
F
o
ltage (10 mV/div
.
µ
s/div.).
F
/10 mΩ, I
O
= 40
A
O
= 40 A.
3
[V]
5[mF]
Eric
s
PR
O
No.
2/13
Date
F
) 201
4
Out
p
.
). Outp
u
V
I
= 1
I
O
=
4
Out
p
A
. Outp
u
I
O
=
4
Loa
d
Load
0.6 V
1.0 V
1.8 V
3.3 V
0
20
40
60
80
100
2
[m
V
0.6 V
1.0 V
1.8 V
3.3 V
0,9
9
0,9
9
1,0
0
1,0
0
1,0
1
[V]
s
son Interna
O
DUCT SPE
C
01-BMR 46
4
4
-05-02
p
ut Ripple &
u
t voltage ripple a
t
2 V, C
O
= 470 µF
/
4
0 A
p
ut Ripple v
s
u
t voltage ripple
V
4
0
A
. Default confi
d
regulation,
regulation at V
o
=
2
00 250 300
V
pk-pk
]
9
0
9
5
0
0
0
5
1
0
08
l
C
IFICATIO
N
4
Uen
Rev
R
C
BM
R
Noise, V
O
=
3
t
: T
P1
= +25 °C,
/
10 mΩ
T
T
s
. Frequency
V
pk-pk
at: T
P1
= +25
°
guration except c
h
V
O
=1.0
V
1.0 V at: T
P1
= +
2
350 400 4
5
16 24
N
R
eference
R
464 0002,
B
3
.3 V
T
race: output vol
t
T
ime scale: (2 µs
/
°
C, V
I
= 12 V , C
O
=
h
anged frequenc
y
2
5 °C, C
O
= 470 µ
F
5
0 500 550
32 4
0
9 (
2
B
MR 464 1
0
t
age (10 mV/div.).
/
div.).
=
470 µF/10 mΩ,
y
.
F
/10 mΩ
600 [kHz]
0.6
1.0
1.8
3.3
0
[A]
4.5
V
5.0
V
12 V
14 V
2
1)
0
02
V
V
V
V
V
V
20 MHz bandwidth
20 MHz bandwidth
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
12

Ericsson Internal
PRODUCT SPECIFICATION 10 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Start-up and shut-down
BMR 464 0002, BMR 464 1002
Start-up by input source Shut-down by input source
Start-up enabled by connecting VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 mΩ, IO = 40 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (5 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 mΩ, IO = 40 A
Top trace: output voltage (0.5 V/div).
Bottom trace: input voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up by CTRL signal Shut-down by CTRL signal
Start-up by enabling CTRL signal at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 mΩ, IO = 40 A
Top trace: output voltage (0.5 V/div.).
Bottom trace: CTRL signal (5 V/div.).
Time scale: (20 ms/div.).
Shut-down enabled by disconnecting
VI at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
CO = 470 µF/10 mΩ, IO = 40 A
Top trace: output voltage (0.5 V/div).
Bottom trace: CTRL signal (5 V/div.).
Time scale: (2 ms/div.).
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
13

Ericsson Internal
PRODUCT SPECIFICATION 11 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Electrical Specification BMR 464 2002 (SIP)
TP1 = -30 to +95 °C, VI = 4.5 to 14 V, VI > VO + 1.0 V
Typical values given at: TP1 = +25 °C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.
Default configuration file, 190 10-CDA 102 0259/001.
External CIN = 470 µF/10 mΩ, COUT = 470 µF/10 mΩ. See Operating Information section for selection of capacitor types.
Sense pins are connected to the output pins.
Characteristics Conditions min typ max Unit
VI Input voltage rise time monotonic 2.4 V/ms
VO
Output voltage without pin strap 1.2 V
Output voltage adjustment range 0.60 3.3 V
Output voltage adjustment including
margining See Note 17 0.54 3.63 V
Output voltage set-point resolution ±0.025 % FS
Output voltage accuracy
Including line, load, temp.
See Note 14 -1 1 %
Current sharing operation
See Note 15 -2 2 %
Internal resistance +S/-S to VOUT/GND 4.7 Ω
Line regulation
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8V 2
VO = 3.3 V 2
Load regulation; IO = 0 - 100%
VO = 0.6 V 2
mV
VO = 1.0 V 2
VO = 1.8V 2
VO = 3.3 V 2
VOac
Output ripple & noise
CO = 470 μF (minimum external
capacitance). See Note 11
VO = 0.6 V 20
mVp-p
VO = 1.0 V 25
VO = 1.8 V 30
VO = 3.3 V 45
IO Output current See Note 18 0.001 40 A
IS Static input current at max IO
VO = 0.6 V 2.46
A
VO = 1.0 V 3.81
VO = 1.8 V 6.51
VO = 3.3 V 11.61
Ilim Current limit threshold 42 52 A
Isc Short circuit
current
RMS, hiccup mode,
See Note 3
VO = 0.6 V 9 A
VO = 1.0 V 8
VO = 1.8 V 8
VO = 3.3 V 6
η Efficiency
50% of max IO
VO = 0.6 V 85.8
%
VO = 1.0 V 90.5
VO = 1.8 V 93.7
VO = 3.3 V 95.5
max IO
VO = 0.6 V 81.4
%
VO = 1.0 V 87.5
VO = 1.8 V 92.1
VO = 3.3 V 94.7
Pd Power dissipation at max IO
VO = 0.6 V 5.48
W
VO = 1.0 V 5.70
VO = 1.8 V 6.12
VO = 3.3 V 7.32
Pli
Input idling
power
(no load)
Default configuration:
Continues Conduction
Mode, CCM
VO = 0.6 V 0.90
W
VO = 1.0 V 0.90
VO = 1.8 V 1.10
VO = 3.3 V 1.70
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
14

Ericsson Internal
PRODUCT SPECIFICATION 12 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Characteristics Conditions min typ max Unit
PCTRL Input standby
power
Turned off with
CTRL-pin
Default configuration:
Monitoring enabled,
Precise timing enabled
170 mW
Ci Internal input capacitance 140 μF
Co Internal output capacitance 400 μF
COUT
Total external output capacitance See Note 9 470 30 000 μF
ESR range of capacitors
(per single capacitor) See Note 9 5 30 mΩ
Vtr1
Load transient
peak voltage
deviation
(H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/μs
CO = 470 μF (minimum
external capacitance)
see Note 12
VO = 0.6 V 240
mV
VO = 1.0 V 240
VO = 1.8 V 220
VO = 3.3 V 200
ttr1
Load transient
recovery time,
Note 5
(H to L)
Load step
25-75-25% of
max IO
Default configuration
di/dt = 2 A/μs
CO = 470 μF (minimum
external capacitance)
see Note 12
VO = 0.6 V 120
μs
VO = 1.0 V 100
VO = 1.8 V 80
VO = 3.3 V 40
fs
Switching frequency 320 kHz
Switching frequency range, see Note 19 PMBus configurable 200-640 kHz
Switching frequency set-point accuracy -5 5 %
Control Circuit PWM Duty Cycle 5 95 %
Minimum Sync Pulse Width 150 ns
Input Clock Frequency Drift Tolerance External clock source -13 13 %
Input Under Voltage
Lockout,
UVLO
UVLO threshold 3.85 V
UVLO threshold range PMBus configurable 3.85-14 V
Set point accuracy -150 150 mV
UVLO hysteresis 0.35 V
UVLO hysteresis range PMBus configurable 0-10.15 V
Delay 2.5 μs
Fault response See Note 3 Automatic restart, 70 ms
Input Over Voltage
Protection,
IOVP
IOVP threshold 16 V
IOVP threshold range PMBus configurable 4.2-16 V
Set point accuracy -150 150 mV
IOVP hysteresis 1 V
IOVP hysteresis range PMBus configurable 0-11.8 V
Delay 2.5 μs
Fault response See Note 3 Automatic restart, 70 ms
Power Good, PG,
See Note 2
PG threshold 90 % VO
PG hysteresis 5 % VO
PG delay 10 ms
PG delay range PMBus configurable 0-500 s
Output voltage
Over/Under Voltage
Protection,
OVP/UVP
UVP threshold 85 % VO
UVP threshold range PMBus configurable 0-100 % VO
UVP hysteresis 5 % VO
OVP threshold 115 % VO
OVP threshold range PMBus configurable 100-115 % VO
UVP/OVP response time 25 μs
UVP/OVP
response time range PMBus configurable 5-60 μs
Fault response See Note 3 Automatic restart, 70 ms
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
15

Ericsson Internal
PRODUCT SPECIFICATION 13
(
21
)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Characteristics Conditions min typ max Unit
Over Current
Protection,
OCP
OCP threshold 48 A
OCP threshold range PMBus configurable 0-48 A
Protection delay, See Note 4 32 Tsw
Protection delay range PMBus configurable 1-32 Tsw
Fault response See Note 3 Automatic restart, 70 ms
Over Temperature
Protection,
OTP at P1
See Note 8
OTP threshold 120 C
OTP threshold range PMBus configurable -40…+120 C
OTP hysteresis 15 C
OTP hysteresis range PMBus configurable 0-160 C
Fault response See Note 3 Automatic restart, 240 ms
VIL Logic input low threshold SYNC, SA0, SA1, SCL, SDA,
GCB, CTRL, VSET
0.8V
VIH Logic input high threshold 2 V
IIL Logic input low sink current CTRL 0.6 mA
VOL Logic output low signal level
SYNC, SCL, SDA, SALERT,
GCB, PG
0.4V
VOH Logic output high signal level 2.25 V
IOL Logic output low sink current 4 mA
IOH Logic output high source current 2 mA
fSMB SMBus Operating frequency 10 100 kHz
tset Setup time, SMBus See Note 1 250 ns
thold Hold time, SMBus See Note 1 300 ns
tfree Bus free time, SMBus See Note 1 2 ms
Cp Internal capacitance on logic pins 10 pF
Initialization time See Note 10 35 ms
Output Voltage
Delay Time
See Note 6
Dela
y
duration See Note 16 10 ms
Dela
y
duration ran
g
e PMBus confi
g
urable 2-500000
Delay accuracy
turn-on
Default configuration:
CTRL controlled
Precise timing enabled
±0.25 ms
PMBus controlled
Precise timing disabled
Current sharin
g
operation
-0.25/+4 ms
Delay accuracy
turn-of
f
-0.25/+4 ms
Output Voltage
Ramp Time
See Note 13
Ramp duration 10 ms
Ramp duration ran
g
e PMBus confi
g
urable 0-200
Ramp time accuracy 100 µs
Current sharin
g
operation 20 %
VTRK Input Bias Current VVTRK = 5.5 V 110 200 µA
VTRK Tracking Ramp Accuracy (VO - VVTRK)
100% tracking, see Note 7 -100 100 mV
Current sharing operation
2 phases, 100% tracking
VO = 1.0 V, 10 ms ramp
±100 mV
VTRK Regulation Accuracy (VO - VVTRK)
100% Trackin
g
-1 1 %
Current sharing operation
100% Trackin
g
-2 2 %
Current difference between products in a current
sharing group
Steady state operation Max 2 x READ_IOUT monitoring accuracy
Ramp-up 4 A
Number of products in a current sharing group 7
Monitoring accuracy
READ_VIN vs VI3 %
READ_VOUT vs VO1 %
READ_IOUT vs IO IO = 0-40 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 1.0 V ±2.5 A
READ_IOUT vs IO IO = 0-40 A, TP1 = 0 to +95 °C
VI = 4.5-14 V, VO = 0.6-3.3 V ±4 A
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
16

Ericsson Internal
PRODUCT SPECIFICATION 14
(
21
)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Note 1: See section I2C/SMBus Setup and Hold Times – Definitions.
Note 2: Monitorable over PMBus Interface.
Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operating Information and AN302 for
other fault response options.
Note 4: Tsw is the switching period.
Note 5: Within +/-3% of VO
Note 6: See section Soft-start Power Up.
Note 7: Tracking functionality is designed to follow a VTRK signal with slew rate < 2.4 V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth.
Note 8: See section Over Temperature Protection (OTP).
Note 9: See section External Capacitors.
Note 10: See section Initialization Procedure.
Note 11: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise.
Note 12: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors.
Note 13: Time for reaching 100% of nominal Vout.
Note 14: For Vout < 1.0 V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus.
Note 15: Accuracy here means deviation from ideal output voltage level given by configured droop and actual load. Includes line, load and temperature variations.
Note 16: For current sharing the Output Voltage Delay Time must be reconfigured to minimum 15 ms, see AN307 for details.
Note 17: For steady state operation above 1.05 x 3.3 V, please contact your local Flex sales representative.
Note 18: A minimum load current is not required if Low Power mode is used (monitoring disabled).
Note 19: Please check with your local Flex Sales representative if you intend to adjust the frequency exceeds 320 KHz ±10%.
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
17

Ericsson Internal
PRODUCT SPECIFICATION 15 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Efficiency and Power Dissipation
BMR 464 2002 (SIP)
Efficiency vs. Output Current, VI = 5 V Power Dissipation vs. Output Current, VI = 5 V
Efficiency vs. load current and output voltage:
TP1 = +25 °C, VI = 5 V, fsw = 320 kHz, CO = 470 µF/10 mΩ.
Dissipated power vs. load current and output voltage:
TP1 = +25°C. VI= 5 V, fsw = 320 kHz, CO= 470 µF/10 mΩ.
Efficiency vs. Output Current, VI = 12 V Power Dissipation vs. Output Current, VI = 12 V
Efficiency vs. load current and output voltage at
TP1 = +25 °C, VI = 12 V, fsw = 320 kHz, CO = 470 µF/10 mΩ.
Dissipated power vs. load current and output voltage:
TP1 = +25 °C, VI= 12 V, fsw = 320 kHz, CO = 470 µF/10 mΩ.
Efficiency vs. Output Current and
Switching Frequency
Power Dissipation vs. Output Current and
Switching frequency
Efficiency vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 mΩ
Default configuration except changed frequency
Dissipated power vs. load current and switch frequency at
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 mΩ
Default configuration except changed frequency
75
80
85
90
95
100
0
8
1
6
24
3
24
0
[%]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
0 8 16 24 32 40
[W]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
75
80
85
90
95
100
0
8
1
6
24
3
24
0
[%]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
0
2
4
6
8
0 8 16 24 32 40
[W]
[A]
0.6 V
1.0 V
1.8 V
3.3 V
70
75
80
85
90
95
0 8 16 24 32 40
[%]
[A]
200
kHz
320
kHz
480
kHz
640
kHz
0
2
4
6
8
0 8 16 24 32 40
[W]
[A]
200
kHz
320
kHz
480
kHz
640
kHz
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
18

Ericsson Internal
PRODUCT SPECIFICATION 16 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Load Transient
BMR 464 2002 (SIP)
Load Transient vs. External Capacitance, VO = 1.0 V Load Transient vs. External Capacitance, VO = 3.3 V
Load transient peak voltage deviation vs. external capacitance.
Step-change (10-30-10 A). Parallel coupling of capacitors with 470 µF/10 mΩ,
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient peak voltage deviation vs. external capacitance.
Step-change (10-30-10 A). Parallel coupling of capacitors with 470 µF/10 mΩ,
TP1 = +25 °C, VI= 12 V, VO= 3.3 V, fsw = 320 kHz, di/dt = 2 A/µs
Load transient vs. Switch Frequency Output Load Transient Response, Default PID/NLR
Load transient peak voltage deviation vs. frequency.
Step-change (10-30-10 A).
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 µF/10 mΩ
Output voltage response to load
current step-change (10-30-10 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt = 2 A/µs, fsw = 320 kHz,
CO = 470 µF/10 mΩ
Top trace: output voltage (200 mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
Note: In the load transient graphs, the worst-case scenario (load step 30-10 A) has been
considered.
0
50
100
150
200
250
300
01234
[mV]
[mF]
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt. PID/NLR
0
50
100
150
200
250
300
01234
[mV]
[mF]
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt. PID/NLR
50
100
150
200
250
300
350
400
200 300 400 500 600
[mV]
[kHz]
Default
PID/NLR
Opt. PID,
No NLR
Default PID,
Opt. NLR
Opt.
PID/NLR
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
19

Ericsson Internal
PRODUCT SPECIFICATION 17 (21)
Prepared (also subject responsible if other) No.
EAB/FJB/GM QLAANDR 2/1301-BMR 464 Uen
Approved Checked Date Rev Reference
EAB/FJB/GM (Ksenia Harrisen) (MICRF) 2014-05-02 C
Typical Characteristics
Output Current Characteristic
BMR 464 2002 (SIP)
Output Current Derating, VO = 0.6 V Output Current Derating, VO = 1.0 V
A
vailable load current vs. ambient air temperature and airflow at
VO = 0.6 V, VI = 12 V. See Thermal Consideration section.
Available load current vs. ambient air temperature and airflow at
VO= 1.0 V, VI = 12 V. See Thermal Consideration section.
Output Current Derating, VO = 1.8 V Output Current Derating, VO= 3.3 V
A
vailable load current vs. ambient air temperature and airflow at
VO = 1.8 V, VI = 12 V. See Thermal Consideration section.
A
vailable load current vs. ambient air temperature and airflow at
VO = 3.3 V, VI = 12 V. See Thermal Consideration section.
Current Limit Characteristics, VO = 1.0 V Current Limit Characteristics, VO = 3.3 V
Output voltage vs. load current at TP1 = +25 °C, VO = 1.0 V.
Note: Output enters hiccup mode at current limit.
Output voltage vs. load current at TP1 = +25 °C, VO = 3.3 V.
Note: Output enters hiccup mode at current limit.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0
10
20
30
40
40 60 80 100 120
[A]
[°C]
3.0 m/s
2.0 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
0,0
0,3
0,6
0,9
1,2
40 42 44 46 48 50
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
0,0
1,0
2,0
3,0
4,0
40 42 44 46 48 50
[V]
[A]
4.5 V
5.0 V
12 V
14 V
VI = 12, 14 V
VI = 4.5, 5.0 V
VI = 4.5, 5.0 V
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
BMR46 series PoL Regulators
Input 4.5-14 V, Output up to 50 A / 165 W
1/28701-BMR 464 Rev.B July 2019
© Flex
Technical Specification
20