Analog Devices DC3089A User manual

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DEMO MANUAL DC3089A
DESCRIPTION
LTM4686B
Ultrathin Dual 14A or Single 28A µModule Regulator
With Digital Power System Management
Demonstration circuit 3089A is a dual-output, high effi-
ciency, high density, µModule regulator with 2.7V to 5.75V
input range. Each output can supply 14A maximum load
current. The demo board has a LTM4686BµModule
regulator, which is a dual 14A or single 28A step-down
regulator with digital power system management. Please
see LTM4686B data sheet for more detailed information.
DC3089A powers up to default settings and produce
power based on configuration resistors without the need
for any serial bus communication. This allows easy evalu-
ation of the DC/DC converter. To fully explore the extensive
power system management features of the part, download
the GUI software LTpowerPlay™onto your PC and use
LT C ’s I2C/SMBus/PMBus dongle DC1613A to connect to
All registered trademarks and trademarks are the property of their respective owners.
BOARD PHOTO
the board. LTpowerPlay allows the user to reconfigure the
part on the fly and store the configuration in EEPROM,
view telemetry of voltage, current, temperature and fault
status.
GUI Download
The software can be downloaded from: ltpowerplay
For more details and instructions of LTpowerPlay, please
refer to LTpowerPlay GUI for LTM4686B Quick Start Guide.
Design files for this circuit board are available.
Figure 1. Dual-Output LTM4686B/DC3089A Demo Circuit

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DEMO MANUAL DC3089A
PERFORMANCE SUMMARY
Specifications are at TA= 25°C
PARAMETER CONDITIONS VALUE
Input Voltage Range 2.7V to 5.75V
Output Voltage, VOUT0 VIN = 2.7-5.75V, IOUT0 = 0A to 14A 0.5V to 3.6V, Default: 0.5V
Maximum Output Current, IOUT0 VIN = 2.7-5.75V, VOUT0 = 0.5V to 3.6V 14A
Output Voltage, VOUT1 VIN = 2.7-5.75V, IOUT1 = 0A to 14A 0.5V to 3.6V, Default: 0.7V
Maximum Output Current, IOUT1 VIN = 2.7-5.75V, VOUT1 = 0.5V to 3.6V 14A
Typical Efficiency VIN = 5V, VOUT0 = 0.5V, IOUT0 = 14A 73.5% (See Figure 5)
VIN = 5V, VOUT1 = 0.7V, IOUT1 = 14A 78.2% (See Figure 6)
Default Switching Frequency 650kHz

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DEMO MANUAL DC3089A
QUICK START PROCEDURE
Demonstration circuit 3089A is easy to set up to evaluate
the performance of the LTM4686B. Refer to Figure 2 for
the proper measurement equipment setup and follow the
procedure below.
1. With power off, connect the input power supply to VIN
(2.7V-5.75V*) and GND (input return).
2. Connect the 0.5V output load between VOUT0 and GND
(Initial load: no load).
3. Connect the 0.7V output load between VOUT1 and GND
(Initial load: no load).
4. Connect the DVMs to the input and outputs. Set default
jumper position: JP1: ON; JP2: ON.
5. Turn on the input power supply and check for the
proper output voltages. VOUT0 should be 0.5V ±0.5%,
and VOUT1 should be 0.7V ±0.5%.
6. Once the proper output voltages are established, adjust
the loads within the operating range and observe the
output voltage regulation, ripple voltage and other
parameters.
7. Connect the dongle and control the output voltages
from the GUI. See “LTpowerPlay GUI for the LTM4686B
Quick Start Guide” for details.
Note:When measuring the output or input voltage rip-
ple, do not use the long ground lead on the oscilloscope
probe. See Figure 3 for the proper scope probe technique.
Short, stiff leads need to be soldered to the (+) and (–)
terminals of an output capacitor. The probe’s ground ring
needs to touch the (–) lead and the probe tip needs to
touch the (+) lead.
* –If 2.70V < VIN <5.50V,
R9=OPEN, R91=R92=0ohm
–If 4.50V < VIN < 5.75V,
R9=0ohm, R91=R92=OPEN

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DEMO MANUAL DC3089A
QUICK START PROCEDURE
Figure 2. Proper Measurement Equipment Setup
Figure 3. Measuring Output Voltage Ripple
+ –
VOUT GND
COUT

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DEMO MANUAL DC3089A
Figure 4. Demo Setup with PC
dc3089a F04
LTM4686B
Demo Board
DC3089A
USB to
I2C/PMBus Dongle
DC1613A
Input
Power Supply
LOAD0
USB CABLE
12-PIN (J1)
CONNECTOR
VOUT0
LOAD1
VOUT1
VIN
QUICK START PROCEDURE
Connecting a PC to DC3089A
You can use a PC to reconfigure the power management
features of the LTM4686B such as:nominal VOUT, mar-
gin set points, OV/UV limits, temperature fault limits,
sequencing parameters, the fault log, fault responses,
GPIOs and other functionalities. The DC1613A dongle
may be plugged when VIN is present.
Figure 5. Efficiency vs Load Current on CH0
Efficiency at VOUT = 0.5V, 650kHz
Figure 6. Efficiency vs Load Current on CH1
Efficiency at VOUT = 0.7V, 650kHz
VIN = 3.3V
VIN = 5V
OUTPUT LOAD CURRENT (A)
0
2
4
6
8
10
12
14
60
65
70
75
80
85
90
EFFICIENCY (%)
DC3089A F05
VIN = 3.3V
VIN = 5V
OUTPUT LOAD CURRENT (A)
0
2
4
6
8
10
12
14
60
65
70
75
80
85
90
EFFICIENCY (%)
DC3089A F06

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DEMO MANUAL DC3089A
QUICK START PROCEDURE
0A TO 7A
LOAD STEP
5A/DIV
ms/DIV
VOUT0
20mV/DIV
dc3089a F07
ms/DIV
dc3089a F08
0A TO 7A
LOAD STEP
5A/DIV
VOUT1
20mV/DIV
Figure 7. Output Voltage VOUT0 vs Load Current (VOUT0 = 0.5V)
Figure 9. Output Voltage Ripple at VIN = 3.3V,
VOUT0 = 0.5V, IOUT0 = 14A
Figure 8. Output Voltage VOUT1 vs Load Current (VOUT1 = 0.7V)
Figure 10. Output Voltage Ripple at VIN = 3.3V,
VOUT1 = 0.7V, IOUT1 = 14A
ms/DIV
50mV/DIV
dc3089a F09
ms/DIV
50mV/DIV
dc3089a F10

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DEMO MANUAL DC3089A
QUICK START PROCEDURE
Figure 11. Thermal at VIN = 3.3V, VOUT0 = 0.5V, IOUT0 = 14A, VOUT1 = 0.7V, IOUT1 = 14A, TA= 25°C, No Airflow

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DEMO MANUAL DC3089A
LTPOWERPLAY SOFTWARE GUI
LTpowerPlay is a powerful Windows based development
environment that supports Linear Technology power
system management ICs and μModules, including the
LTM4675, LTM4676A, LTM4677, LTM4678, LTM4686,
LTC3880, LTC3882 and LTC3883. The software supports
a variety of different tasks. You can use LTpowerPlay to
evaluate Linear Technology ICs by connecting to a demo
board system. LTpowerPlay can also be used in an offline
mode (with no hardware present) in order to build a mul-
tichip configuration file that can be saved and reloaded at
a later time. LTpowerPlay provides unprecedented diag-
nostic and debug features. It becomes a valuable diag-
nostic tool during board bring-up to program or tweak
the power management scheme in a system, or to diag-
nose power issues when bringing up rails. LTpowerPlay
utilizes the DC1613A USB-to-SMBus controller to com-
municate with one of many potential targets, including the
LTM4675, LTM4676A, LTM4677, LTM4686, LTC3880,
LTC3882, LTC3883’s demo system, or a customer board.
The software also provides an automatic update feature
to keep the software current with the latest set of device
drivers and documentation. The LTpowerPlay software
can be downloaded from: ltpowerplay
To access technical support documents for LTC Digital
Power Products visit the LTpowerPlay Help menu. Online
help also available through the LTpowerPlay.
Figure 12. LTpowerPlay Main Interface

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DEMO MANUAL DC3089A
LTPOWERPLAY QUICK START PROCEDURE
The following procedure describes how to use LTpower-
Play to monitor and change the settings of LTM4686B.
1. Download and install the LTPowerPlay GUI:
ltpowerplay
2. Launch the LTpowerPlay GUI.
a. The GUI should automatically identify the DC3089A. The
system tree on the left-hand side should look like this:
b. A green message box shows for a few seconds in the
lower left hand corner, confirming that LTM4686B is
communicating:
c. In the Toolbar, click the “R” (RAM to PC) icon to read the
RAM from the LTM4686B. This reads the configuration
from the RAM of LTM4686B and loads it into the GUI.
d. If you want to change the output voltage to a different
value, like 0.6V. In the Config tab, type in 0.6 in the
VOUT_COMMAND box, like this:
Then, click the “W” (PC to RAM) icon to write these
register values to the LTM4686B. After finishing this
step, you will see the output voltage will change to 0.6V.
If the write is successful, you will see the following
message:
e. You can save the changes into the NVM. In the tool bar,
click “RAM to NVM” button, as following:
f. Save the demo board configuration to a (*.proj) file.
Click the Save icon and save the file. Name it whatever
you want.

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DEMO MANUAL DC3089A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER, PART NUMBER
Required Circuit Components
1 1 CIN1 CAP., 150µF, ALUM. ELECT., 35V, 20%, 8x10.2mm
SMD, RADIAL, AEC-Q200
PANASONIC, EEHZA1V151P
2 0 C16, C17 CAP., OPTION, 0603
3 2 C2, C15 CAP., 100pF, COG, 25V, 5%, 0603 KEMET, C0603X101J3GACAUTO
VISHAY, VJ0603A101JXXPW1BC
AVX, 06033U101JAT2A
4 6 COUT1, COUT2, COUT3, COUT6,
COUT7, COUT8
CAP., 100µF, X5R, 6.3V, 20%, 1206 AVX, 12066D107MAT2A
KEMET, C1206C107M9PAC7800
KEMET, C1206C107M9PACTU
MURATA, GRM31CR60J107ME39L
NIC, NMC1206X5R107M6.3TRPLPF
TDK, C3216X5R0J107M160AB
5 2 C1, C14 CAP., 1500pF, X7R, 100V, 10%, 0603 AVX, 06031C152KAT2A
WURTH, 885012206109
6 4 CIN2, CIN3, CIN4, CIN5 CAP., 22µF, X5R, 25V, 10%, 1206 AVX, 12063D226KAT2A
MURATA, GRM31CR61E226KE15L
SAMSUNG, CL31A226KAHNNNE
YAGEO, CC1206KKX5R8BB226
7 8 COUT4, COUT5, COUT9, COUT10,
COUT11, COUT12, COUT13,
COUT14
CAP., 180µF, ALUM POLY, 4V, 20%, SMD,
7.3x4.3mm
PANASONIC, EEF-CT0G181R
PANASONIC, EEFCT0G181R
8 2 CIN8, CIN9 CAP., 2.2µF, X7R, 25V, 10%, 0805 AVX, 08053C225KAT2A
KEMET, C0805C225K3RACTU
NIC, NMC0805X7R225K25TRPLPF
TDK, C2012X7R1V225K125AE
9 2 COUT15, COUT16 CAP., 47µF, X5R, 6.3V, 20%, 0805 AVX, 08056D476KAT2A
MURATA, GRM219R60J476ME44
10 3 C21, C22, C24 CAP., 1µF, X5R, 25V, 10%, 0603 AVX, 06033D105KAT2A
NIC, NMC0603X5R105K25TRPF
TAIYO YUDEN, TMK107BJ105KA-T
11 1 C23 CAP., 1µF, X7R, 25V, 10%, 0805 AVX, 08053C105KAT2A
WURTH, 885012207078
12 1 C26 CAP., 0.1µF, X5R, 25V, 10%, 0603 AVX, 06033D104KAT2A
SAMSUNG, CL10A104KA8NNNC
TAIYO YUDEN, TMK107BJ104KA-T
13 2 C27, C28 CAP., 0.01µF, X5R, 25V, 10%, 0603 AVX, 06033D103KAT2A
TDK, C1608X7R1E103K080AA
14 2 C29, C30 CAP., 4.7µF, X5R, 16V, 10%, 0603 AVX, 0603YD475KAT2A
MURATA, GRM188R61C475KAAJD
MURATA, GRM188R61C475KE11D
TDK, C1608X5R1C475K080AC
15 1 C31 CAP., 2.2µF, X7R, 10V, 10%, 0603 AVX, 0603ZC225KAT2A
MURATA, GRM188R71A225KE15D
TDK, C1608X7R1A225K080AC
YAGEO, CC0603KRX7R6BB225
16 0 D1, D2 DIODE, OPTION, SOD-323
17 1 D8 DIODE, SCHOTTKY, 20V, 0.5A, SOD-882,
LEADLESS
NEXPERIA, PMEG2005AEL, 315

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DEMO MANUAL DC3089A
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER, PART NUMBER
18 24 E1, E2, E3, E4, E5, E6, E7, E8, E9,
E10, E11, E12, E13, E14, E15, E16,
E17, E20, E21, E22, E23, E24, E29,
E30
TEST POINT, TURRET, 0.064 MTG. HOLE, PCB
0.062 THK
MILL-MAX, 2308-2-00-80-00-00-07-0
19 1 J1 CONN., HDR, MALE, 2x7, 2mm, R, A THT MOLEX, 0877601416
MOLEX, 87760-1416
20 2 JP1, JP2 CONN., HDR., MALE, 1x3, 2mm, VERT, ST, THT SULLINS CONNECTOR SOLUTIONS,
NRPN031PAEN-RC
21 1 J2 CONN., HDR, FEMALE, 2x7, 2mm, R, A THT SULLINS CONNECTOR SOLUTIONS,
NPPN072FJFN-RC
22 3 J3, J4, J12 CONN., RF, BNC, RCPT, JACK, 5-PIN, ST, THT, 50Ω AMPHENOL RF, 112404
23 6 J5, J6, J7, J8, J9, J10 CONN., BANANA JACK, FEMALE, THT, NON-
INSULATED, SWAGE, 0.218
KEYSTONE, 575-4
24 1 J11 CONN., HDR, SHROUDED, MALE, 2x6, 2mm, VERT,
ST, THT
AMPHENOL, 98414-G06-12ULF
FCI, 98414-G06-12ULF
25 1 J13 CONN., HDR, SHROUDED, MALE, 1x4, 2mm, VERT,
ST, THT
HIROSE ELECTRIC, DF3A-4P-2DSA
26 1 LB1 LABEL SPEC, DEMO BOARD SERIAL NUMBER BRADY, THT-96-717-10
27 4 MH1, MH2, MH3, MH4 STANDOFF, NYLON, SNAP-ON, 0.50 KEYSTONE, 8833
28 1 PCB PCB, DC3089A ADI APPROVED SUPPLIER, 600-DC3089A
29 1 Q1 XSTR., MOSFET, N-CH, 40V, 14A, DPAK (TO-252) VISHAY, SUD50N04-8M8P-4GE3
30 1 Q19 XSTR., MOSFET, P-CH, 30V, 3.5A, SOT23-3,
AEC-Q101
DIODES INC., DMP3130LQ-7
31 2 R2, R22 RES., 7.5k, 1%, 1, 10W, 0603
VISHAY, CRCW06037K5FKEA
32 13 R3, R5, R7, R8, R25, R28, R32,
R63, R65, R66, R91, R92, R93
RES., 0Ω, 1, 10W, 0603, AEC-Q200 NIC, NRC06ZOTRF
VISHAY, CRCW06030000Z0EA
VISHAY, CRCW06030000Z0EB
33 0 R6, R9, R23, R26, R28, R29, R31,
R35, R38, R41, R42, R61, R62,
R64, R67, R68, R74, R75, R83,
R88, R89
RES., OPTION, 0603
34 12 R10, R11, R12, R13, R14, R15,
R16, R18, R19, R24, R52, R77
RES., 10k, 1%, 1, 10W, 0603, AEC-Q200 KOA SPEER, RK73H1JTTD1002F
PANASONIC, ERJ3EKF1002V
VISHAY, CRCW060310K0FKEA
35 1 R27 RES., 12.7k, 1%, 1, 10W, 0603
VISHAY, CRCW060312K7FKEA
38 1 R30 RES., 0.787k, 1%, 1, 10W, 0603, AEC-Q200 NIC., NRC06F7870TRF
39 1 R48 RES., 0Ω, 3, 4W, 2010, AEC-Q200 NIC, NRC50ZOTRF
PANASONIC, ERJ12ZY0R00U
VISHAY, CRCW20100000Z0EF
40 0 R49 RES., OPTION, 2010
41 0 R50, R51 RES., OPTION, 300Ω, 1%, 2512
PARTS LIST

12
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DEMO MANUAL DC3089A
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER, PART NUMBER
42 1 R53 RES., 0.01Ω, 1%, 1W, 2010, SENSE IRC, LRC-LRF2010LF-01-R010-F
TT ELECTRONICS, LRC-LRF2010LF-01-R010-F
43 2 R72, R73 RES., 4.99k, 1%, 1, 10W, 0603, AEC-Q200 NIC, NRC06F4991TRF
PANASONIC, ERJ3EKF4991V
VISHAY, CRCW06034K99FKEA
44 1 R78 RES., 15.8k, 1%, 1, 10W, 0603, AEC-Q200 NIC, NRC06F1582TRF
PANASONIC, ERJ3EKF1582V
VISHAY, CRCW060315K8FKEA
45 2 R69, R70 RES., 10Ω, 1%, 1, 1/10W, 0603 NIC, NRC06F10R0TRF
PANASONIC, ERJ3EKF10R0V
VISHAY, CRCW060310R0FKEA
46 0 R82 RES., OPTION, 1206
47 2 STNCL1 TOOL, STENCIL, 700-DC3089A ADI APPROVED SUPPLIER, 830-DC3089A
48 1 U1 IC, DUAL 10A OUTPUTS STEP-DOWN, µModule
REGULATOR, BGA
ANALOG DEVICES, LTM4685EV#PBF
49 1 U3 IC, MEMORY, EEPROM, 2Kb (256x8), TSSOP-8,
400kHz
MICROCHIP, 24LC025-I, ST
MICROCHIP, 24LC025T-I, ST
50 1 U6 IC, LOW NOISE REGULATED CHARGE, PUMP IN,
2x2 DFN
ANALOG DEVICES, LTC3204BEDC-5#PBF
51 2 XJP1, XJP2 CONN., SHUNT, FEMALE, 2-POS, 2mm SAMTEC, 2SN-BK-G
PARTS LIST

13
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DEMO MANUAL DC3089A
SCHEMATIC DIAGRAM
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 0603. ALL CAPACITORS ARE 0603.
35V
2.7V - 5.75V
0.5V / 14A
4V
EEFCT0G181R
0.7V / 14A
ON
ON
4V1206
OFF
0.035 VIA TESTPOINTS
PRODUCTION2 5-4-2022
4V
4V
EEFCT0G181R
When 2.70V < Vin < 5.50V, R9=OPEN, R91=R92=0ohm When 4.50V < Vin < 5.75V, R9=0ohm, R91=R92=OPEN
4V
EEFCT0G181R
4V
EEFCT0G181R
1206 1206
EEFCT0G181R EEFCT0G181R EEFCT0G181R
4V4V
EEFCT0G181R
WITH POWER SYSTEM MANAGEMENT
VIN
VOUT0
VOUT1
VINL
VINLVIN
SYNC SHARE_CLK
ALERTB
SCL SDA
GPIO0B
GPIO1B
COMP0a
COMP1a
RUN0 RUN1
VDD33
VOSNS0+
VOSNS1
VBIAS
VIN
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
Yan L.
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
Yan L.
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
Yan L.
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
13
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
13
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
13
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
COUT8 100uF 1206
COUT15 47uF
0805
P4
R8 0
R5 0
E5
GND
R3 0
E7
GND1_SNS
E17
GND0_SNS
COUT7 100uF 1206
R13 10K
R32 0
R7 0
+
COUT4
180uF
COUT6 100uF
1206
R26 (OPT)
R14 10K
J7
VOUT0
E3
INTVCC
R10 10K
CIN6 OPT 1206
CIN3 22uF 1206
R31 OPT
J6 VOUT1
CIN7 OPT 1206
R25
0
J8
GND
R15 10K
R23 OPT
P2
+
COUT11
180uF
P3
R27 12.7K
CIN8 2.2uF 0805
R30 0.787K
+
COUT13
180uF
+
COUT10 180uF
U1
LTM4686BEV
VOUT0
A1
VOUT0
B1
VOUT0
C1
VOUT0
D1
GND
A2
GND
A3
GND
A4
GND
A5
VOUT1 J1
VOUT1 K1
VOUT1 L1
VOUT1 M1
GND
A6
GND
A7
GND
A8
GND
B2
ASEL G2
FREQ_CFG H2
GND
B3
GND
B4
GND
B5
GND
B6
GPIO0 E2 GPIO1 F2
GND
B7
TSNS0
C3
TSNS0
D3
ALERT E3
RUN0 F3
VOUT0_CFG G3
VTRIM0_CFG H3
TSNS1a J3
TSNS1b K3
GND
C2
GND
C4
GND
C5
GND
C6
SDA D4
SCL E4
RUN1 F4
VOUT1_CFG G4
VTRIM1_CFG H4
VDD25 J4
WP K4
GND
C7
GND
C8
GND
D2
GND
D5
GND
E1
GND
E9
SYNC E5
SGND
F5
SGND
F6
SHARE_CLK H5
VDD33 J5
GND
F1
GND
F8
GND
G1
GND
G8
GND
G9
GND
H1
COMP0b
D6
COMP0a
E6
SGND
G5
SGND
G6
COMP1a H6
COMP1b J6
GND
H8
GND
H9
GND
J2
GND
J8
GND
K2
GND
K5
VOSNS0+
D7
VOSNS0-
E7
INTVCC F7 INTVCC G7
VOSNS1 H7
VORB1 J7
GND
K6
GND
K7
GND
K8
GND
L2
SW0
B8
VORB0+
D8
VORB0-
E8
GND
L3
GND
L4
GND
L5
GND
L6
SW1 L8
GND
L7
VINH0
D9 VINH0 C9 VINH0
B9 VINH0 A9
GND
M2
VINH1 J9
VINH1 K9
VINH1 L9
VINH1 M9
VINL
F9
GND
M3
GND
M4
GND
M5
GND
M6
GND
M7
GND
M8
E16
VDD25
R6 OPT
+
CIN1 150uF
R18 10K
+
COUT14
180uF
P5
+
COUT12
180uF
R11 10K
R19 10K
E8
VDD33
+
COUT9
180uF
J5
GND
E9
SYNC
R28 0
JP2
OFF
RUN1
1 3 2
R24 10K
CIN4 22uF 1206
R16 10K
JP1
RUN0
1 3 2
COUT1 100uF
P1
C16 OPT
E15
VOUT0_SNS
R29 OPT
R91 0
E2
GND
CIN9 2.2uF 0805
CIN5 22uF 1206
COUT3 100uF
E6
SHARE_CLK
J10
VIN
R12 10K
R93 0
+
COUT5 180uF
COUT16 47uF 0805
R22 7.5K
J9
GND
R9 OPT
C2 100pF
E10
ALERTB
C1
1.5nF
C15
100pF
E4
VIN
E14
GPIO1B
C14
1.5nF
CIN2 22uF 1206
COUT2 100uF
E1
VOUT1_SNS
E13
GPIO0B
R2 7.5k
C17 OPT
E12
SDA
E11
SCL
VOSNS0-
VDD33
SYNC SHARE_CLK ALERTB SCL SDA GPIO0B GPIO1B ASEL FREQ_CFG VOUT0_CFG VTRIM0_CFG VOUT1_CFG VTRIM1_CFG RUN1 VDD25 RUN0
INTVCC

14
Rev 0
DEMO MANUAL DC3089A
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D C C B B A A
ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN
OPT
2010 2010 OPT
VOUT1
DYNAMIC LOAD CIRCUIT
DO NOT EXCEED 5% DUTY CYCLE!
BLEEDER LOADS
OPTIONAL JUMPER FOR DUAL PHASE SINGLE OUTPUT CONFIGURATION
2010
VOUT0
OPTIONAL CHARG PUMP FOR 2.7V<=VIN<=5.5V APPLICATION
WITH POWER SYSTEM MANAGEMENT
VOUT0 VOUT1 VOUT0 VOUT1
VIN_BIAS
VIN_BIAS COMP0a COMP1a
GPIO0B GPIO1B
RUN0RUN1
VOSNS0+ VOSNS1
VBIAS
VIN
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
23
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
23
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
23
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
C22 1uF
R53
0.01
J4
IOSTEP
1
2
3
4
5
C24 1uF
E24
SGND
J12 1
2
3
4
5
E21
IOSTEP_CLK
C31 2.2uF
E22
GND
E23
SGND
C21 1uF
C23 1uF
R49 2010 OPT
Q1
SUD50N03-09P
2
1
3
4
C30 4.7uF
R92 0
R38 OPT
R52 10K
R42 OPT.
R35 OPT
R50
U6 LTC3204B-5
GND 1
VIN 2
VOUT 3
GND
7
C+
4
C-
5
SHDN
6
R48 2010 0.5W
0
R51
C29 4.7uF
J3
1
2
3
4
5
R41 OPT.

15
Rev 0
DEMO MANUAL DC3089A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications
subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
SCHEMATIC DIAGRAM
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
TO DC1613A
ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN
PSM STACKING CONNECTORS:
1206
OPTIONAL CIRCUIT FOR PROGRAMMING WITHOUT VIN J1, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416
J2, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-RC
TO DC2086A
3V3
VIN
3V3 VDD33
VIN
3V3
ALERTB SDA SCL
RUN0 RUN1
GPIO1B GPIO0B
SYNC
SHARE_CLK
VDD33
VIN
VDD33
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
33
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
33
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES. APP ENG.
Phone: [phone]
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
www.analog.com
SKU NO. IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
33
HZ
Yan L.
ULTRATHIN DUAL STEP-DOWN uMODULE REGULATOR
DC3089A
DC3089A2
N/A
LTM4686BEV
Tuesday, May 24, 2022
R63 0
E20
AUXP
J1 DEMO HEADER (M)
FAULTB
1
CTRL
2
ALERTB
3
SDA
4
SHARE_CLK
5
SCL
6
RESETB
7
AUXP
8
UNUSED
9
UNUSED
10
GND
11
GND
12
12V
13
12V
14
R73 4.99K
D1 OPT
R89 OPT
R78 15.8k
U3
24LC025-I/ST
A0
1
A1
2
A2
3
VSS
4SDA 5
SCL 6
WP 7
VCC 8
E29
RUN0
R77 10K
R64 OPT
R88 OPT
R61 OPT
C27 10nF
R66
0
C26
100nF
R82 OPT
R69 10
R72 4.99K
J13
AUX3V4 4
SCL 3
GND 2
1
SDA
Q19
DMP3130L-7
23
1
J11
AUXP 1
SDA 2
GND 3
SCL 4
LGKPWR 5
ALERTB 6
GPIO_1 7
OUTEN_0 8 OUTEN_1 9
GND 10
AUXSCL 11
AUXSDA 12
R67 OPT
C28 10nF
R62 OPT
D8
2 1
E30
RUN1
R74 OPT
J2 DEMO HEADER (F)
FAULTB 1
CTRL 2
ALERTB 3
SDA 4
SHARE_CLK 5
SCL 6
RESETB 7
AUXP 8
UNUSED 9 UNUSED 10
GND 11 GND 12
12V 13 12V 14
R75 OPT
R83 OPT
R70 10
R65 0
D2 OPT
R68 OPT
AUXVCC
EEWP
EESDA EESCL
AUX3V4

16
Rev 0
DEMO MANUAL DC3089A
 ANALOG DEVICES, INC. 2022
09/22
www.analog.com
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
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