Delta Electronics Delphi Series DNS User manual

DATASHEET
DS_DNS04SIP06_07172008D
FEATURES
High efficiency: 94% @ 5.0Vin, 3.3V/6A out
Small size and low profile: (SIP)
25.4 x 12.7 x 6.7mm (1.00”x 0.50”x 0.26”)
Single-In-Line (SIP) packaging
Standard footprint
Voltage and resistor-based trim
Pre-bias startup
Output voltage tracking
No minimum load required
Output voltage programmable from
0.75Vdc to 3.3Vdc via external resistor
Fixed frequency operation
Input UVLO, output OTP, OCP
Remote on/off
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing
facility
UL/cUL 60950 (US & Canada) Recognized,
and TUV (EN60950) Certified
CE mark meets 73/23/EEC and 93/68/EEC
directives
APPLICATIONS
Telecom / DataCom
Distributed power architectures
Servers and workstations
LAN / WAN applications
Data processing applications
OPTIONS
Negative on/off logic
Tracking feature
SIP package
Delphi DNS, Non-Isolated Point of Load
DC/DC Power Modules: 2.8-5.5Vin, 0.75-3.3V/6Aout
The Delphi Series DNS, 2.8-5.5V input, single output, non-isolated
Point of Load DC/DC converters are the latest offering from a world
leader in power systems technology and manufacturing -- Delta
Electronics, Inc. The DNS series provides a programmable output
voltage from 0.75V to 3.3V using an external resistor and has flexible
and programmable tracking features to enable a variety of startup
voltages as well as tracking between power modules. This product
family is available in surface mount or SIP packages and provides up
to 6A of output current in an industry standard footprint. With creative
design technology and optimization of component placement, these
converters possess outstanding electrical and thermal performance,
as well as extremely high reliability under highly stressful operating
conditions.

DS_DNS04SIP06A_07172008
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TECHNICAL SPECIFICATIONS
(TA = 25°C, airflow rate = 300 LFM, Vin = 2.8Vdc and 5.5Vdc, nominal Vout unless otherwise noted.)
PARAMETER NOTES and CONDITIONS DNS04S0A0R06PFD
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous) 0 5.8 Vdc
Tracking Voltage Vin,max Vdc
Operating Temperature Refer to Figure 44 for measuring point -40 125 °C
Storage Temperature -55 125 °C
INPUT CHARACTERISTICS
Operating Input Voltage Vout ≦Vin –0.5 2.8 5.5 V
Input Under-Voltage Lockout
Turn-On Voltage Threshold 2.2 V
Turn-Off Voltage Threshold 2.0 V
Maximum Input Current Vin=2.8V to 5.5V, Io=Io,max 6 A
No-Load Input Current 70 mA
Off Converter Input Current 5 mA
Inrush Transient Vin=2.8V to 5.5V, Io=Io,min to Io,max 0.1 A2S
Recommended Inout Fuse 6 A
OUTPUT CHARACTERISTICS
Output Voltage Set Point Vin=5V, Io=Io, max -2.0 Vo,set +2.0 % Vo,set
Output Voltage Adjustable Range 0.7525 3.63 V
Output Voltage Regulation
Over Line Vin=2.8V to 5.5V 0.3 % Vo,set
Over Load Io=Io,min to Io,max 0.4 % Vo,set
Over Temperature Ta=-40℃to 85℃0.8 % Vo,set
Total Output Voltage Range Over sample load, line and temperature -3.0 +3.0 % Vo,set
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 40 60 mV
RMS Full Load, 1µF ceramic, 10µF tantalum 10 15 mV
Output Current Range 0 6 A
Output Voltage Over-shoot at Start-up Vout=3.3V 1 % Vo,set
Output DC Current-Limit Inception 220 % Io
Output Short-Circuit Current (Hiccup Mode) Io,s/c 3.5 Adc
DYNAMIC CHARACTERISTICS
Dynamic Load Response 10µF Tan & 1µF Ceramic load cap, 2.5A/µs, Vin=5V
Positive Step Change in Output Current 50% Io, max to 100% Io, max 160 mV
Negative Step Change in Output Current 100% Io, max to 50% Io, max 160 mV
Settling Time to 10% of Peak Deviation 25 µs
Turn-On Transient Io=Io.max
Start-Up Time, From On/Off Control Von/off, Vo=10% of Vo,set 2 ms
Start-Up Time, From Input Vin=Vin,min, Vo=10% of Vo,set 2 ms
Output Voltage Rise Time Time for Vo to rise from 10% to 90% of Vo,set 2 5 ms
Output Capacitive Load Full load; ESR ≧1mΩ1000 µF
Full load; ESR ≧10mΩ3000 µF
EFFICIENCY
Vo=3.3V Vin=5V, 100% Load 94.0 %
Vo=2.5V Vin=5V, 100% Load 91.5 %
Vo=1.8V Vin=5V, 100% Load 89.0 %
Vo=1.5V Vin=5V, 100% Load 88.0 %
Vo=1.2V Vin=5V, 100% Load 86.0 %
Vo=0.75V Vin=5V, 100% Load 81.0 %
FEATURE CHARACTERISTICS
Switching Frequency 300 kHz
ON/OFF Control, (Negative logic)
Logic Low Voltage Module On, Von/off -0.2 0.3 V
Logic High Voltage Module Off, Von/off 1.5 Vin,max V
Logic Low Current Module On, Ion/off 10 µA
Logic High Current Module Off, Ion/off 0.2 1 mA
ON/OFF Control, (Positive Logic)
Logic High Voltage Module On, Von/off Vin,max V
Logic Low Voltage Module Off, Von/off -0.2 0.3 V
Logic Low Current Module On, Ion/off 0.2 1 mA
Logic High Current Module Off, Ion/off 10 µA
Tracking Slew Rate Capability 0.1 2 V/msec
Tracking Delay Time Delay from Vin.min to application of tracking voltage 10 ms
Tracking Accuracy Power-up 2V/mS 100 200 mV
Power-down 1V/mS 200 400 mV
GENERAL SPECIFICATIONS
MTBF Io=80% of Io, max; Ta=25°C 11.52 M hours
Weight 4 grams
Over-Temperature Shutdown Refer to Figure 45 for measuring point 130 °C

DS_DNS04SIP06A_07172008
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ELECTRICAL CHARACTERISTICS CURVES
Figure 1: Converter efficiency vs. output current (3.3V out) Figure 2: Converter efficiency vs. output current (2.5V out)
Figure 3: Converter efficiency vs. output current (1.8V out) Figure 4: Converter efficiency vs. output current (1.5V out)
Figure 5: Converter efficiency vs. output current (1.2V out) Figure 6: Converter efficiency vs. output current (0.75V out)
90
91
92
93
94
95
96
97
98
123456
LOAD (A)
EFFICIENCY(%)
4.5V
5V
5.5V 84
86
88
90
92
94
96
98
123456
LOAD (A)
EFFICIENCY(%)
3V
5V
5.5V
84
86
88
90
92
94
96
98
123456
LOAD (A)
EFFICIENCY(%)
2.8V
5V
5.5V
82
84
86
88
90
92
94
96
123456
LOAD (A)
EFFICIENCY(%)
2.8V
5V
5.5V
80
82
84
86
88
90
92
94
123456
LOAD (A)
EFFICIENCY(%)
2.8V
5V
5.5V
74
76
78
80
82
84
86
88
90
92
123456
LOAD (A)
EFFICIENCY(%)
2.8V
5V
5.5V

DS_DNS04SIP06A_07172008
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ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 7: Output ripple & noise at 3.3Vin, 2.5V/6A out Figure 8: Output ripple & noise at 3.3Vin, 1.8V/6A out
Figure 9: Output ripple & noise at 5Vin, 3.3V/6A out
Figure 10: Output ripple & noise at 5Vin, 1.8V/6A out
Figure 11: Turn on delay time at 3.3Vin, 2.5V/6A out Figure 12: Turn on delay time at 3.3Vin, 1.8V/6A out

DS_DNS04SIP06A_07172008
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ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 13: Turn on delay time at 5Vin, 3.3V/6A out Figure 14: Turn on delay time at 5Vin, 1.8V/6A out
Figure 15: Turn on delay time at remote turn on 5Vin, 3.3V/16A
out
Figure 16: Turn on delay time at remote turn on 3.3Vin, 2.5V/16A
out
Figure 17: Turn on delay time at remote turn on with external
capacitors (Co= 5000 µF) 5Vin, 3.3V/16A out
Figure 18: Turn on delay time at remote turn on with external
capacitors (Co= 5000 µF) 3.3Vin, 2.5V/16A out

DS_DNS04SIP06A_07172008
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ELECTRICAL CHARACTERISTICS CURVES
Figure 19: Typical transient response to step load change at
2.5A/μS from 100% to 50% of Io, max at 5Vin, 3.3Vout
(Cout = 1uF ceramic, 10μF tantalum)
Figure 20: Typical transient response to step load change at
2.5A/μS from 50% to 100% of Io, max at 5Vin, 3.3Vout
(Cout =1uF ceramic, 10μF tantalum)
Figure 21: Typical transient response to step load change at
2.5A/μS from 100% to 50% of Io, max at 5Vin, 1.8Vout
(Cout =1uF ceramic, 10μF tantalum)
Figure 22: Typical transient response to step load change at
2.5A/μS from 50% to 100% of Io, max at 5Vin, 1.8Vout
(Cout = 1uF ceramic, 10μF tantalum)

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ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 23: Typical transient response to step load change at
2.5A/μS from 100% to 50% of Io, max at 3.3Vin,
2.5Vout (Cout =1uF ceramic, 10μF tantalum)
Figure 24: Typical transient response to step load change at
2.5A/μS from 50% to 100% of Io, max at 3.3Vin,
2.5Vout (Cout =1uF ceramic, 10μF tantalum)
Figure 25: Typical transient response to step load change at
2.5A/μS from 100% to 50% of Io, max at 3.3Vin,
1.8Vout (Cout =1uF ceramic, 10μF tantalum)
Figure 26: Typical transient response to step load change at
2.5A/μS from 50% to 100% of Io, max at 3.3Vin,
1.8Vout (Cout = 1uF ceramic, 10μF tantalum)
Figure 27: Output short circuit current 5Vin, 0.75Vout Figure 28:Turn on with Prebias 5Vin, 3.3V/0A out, Vbias
=1.0Vdc

DS_DNS04SIP06A_07172008
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TEST CONFIGURATIONS
V I (+)
V
I (-)
BATTERY
2
100uF
Tantalum
L
TO OSCILLOSCOPE
Note: Input reflected-ripple current is measured with a
simulated source inductance. Current is measured at
the input of the module.
Figure 29: Input reflected-ripple test setup
Vo
GND
COPPER STRIP
10uF
tantalum 1uF ceramic SCOPE Resistive
Load
Note: Use a 10μF tantalum and 1μF capacitor. Scope
measurement should be made using a BNC connector.
Figure 30: Peak-peak output noise and startup transient
measurement test setup.
SUPPLY
I
I
V I Vo
GND
Io
LOAD
CONTACT AND
DISTRIBUTION LOSSES
CONTACT RESISTANCE
Figure 31: Output voltage and efficiency measurement test
setup
Note: All measurements are taken at the module
terminals. When the module is not soldered (via
socket), place Kelvin connections at module
terminals to avoid measurement errors due to
contact resistance.
%100)( ×
×
×
=IiVi IoVo η
DESIGN CONSIDERATIONS
Input Source Impedance
To maintain low noise and ripple at the input voltage, it is
critical to use low ESR capacitors at the input to the
module. Figure 32 shows the input ripple voltage (mVp-p)
for various output models using 2x100 µF low ESR
tantalum capacitor (KEMET p/n: T491D107M016AS,
AVX p/n: TAJD107M106R, or equivalent) in parallel with
47 µF ceramic capacitor (TDK p/n:C5750X7R1C476M or
equivalent). Figure 33 shows much lower input voltage
ripple when input capacitance is increased to 400 µF (4 x
100 µF) tantalum capacitors in parallel with 94 µF (2 x 47
µF) ceramic capacitor.
The input capacitance should be able to handle an AC
ripple current of at least:
Arms
Vin
Vout
Vin
Vout
IoutIrms ⎟
⎠
⎞
⎜
⎝
⎛−= 1
0
50
100
150
200
01234
Output Voltage (Vdc)
Input Ripple Voltage (mVp-p)
3.3Vin
5.0Vin
Figure 32: Input voltage ripple for various output models, Io =
6A (CIN = 2
× 100µF tantalum // 47µF ceramic)
0
20
40
60
80
01234
Output Voltage (Vdc)
Input Ripple Voltage (mVp-p)
3.3Vin
5.0Vin
Figure 33: Input voltage ripple for various output models, Io =
6A (CIN = 4
× 100µF tantalum // 2 × 47µF ceramic)

DS_DNS04SIP06A_07172008
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DESIGN CONSIDERATIONS (CON.)
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the module. An input
capacitance must be placed close to the modules input
pins to filter ripple current and ensure module stability in
the presence of inductive traces that supply the input
voltage to the module.
Safety Considerations
For safety-agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the input
must meet SELV requirements. The power module has
extra-low voltage (ELV) outputs when all inputs are ELV.
The input to these units is to be provided with a maximum
6A time-delay fuse in the ungrounded lead.
FEATURES DESCRIPTIONS
Remote On/Off
The DNS series power modules have an On/Off pin for
remote On/Off operation. Both positive and negative
On/Off logic options are available in the DNS series
power modules.
For positive logic module, connect an open collector
(NPN) transistor or open drain (N channel) MOSFET
between the On/Off pin and the GND pin (see figure 34).
Positive logic On/Off signal turns the module ON during
the logic high and turns the module OFF during the logic
low. When the positive On/Off function is not used, leave
the pin floating or tie to Vin (module will be On).
For negative logic module, the On/Off pin is pulled high
with an external pull-up 5kΩresistor (see figure 35).
Negative logic On/Off signal turns the module OFF during
logic high and turns the module ON during logic low. If the
negative On/Off function is not used, leave the pin floating
or tie to GND. (module will be On)
Vo
On/Off
Vin
GND
Q1
RL
I
ON/OFF
Figure 34: Positive remote On/Off implementation
Vo
On/Off
Vin
GND
Q1
RL
Rpull-
up
I
ON/OFF
Figure 35: Negative remote On/Off implementation
Over-Current Protection
To provide protection in an output over load fault
condition, the unit is equipped with internal over-current
protection. When the over-current protection is
triggered, the unit enters hiccup mode. The units
operate normally once the fault condition is removed.

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FEATURES DESCRIPTIONS (CON.)
Over-Temperature Protection
The over-temperature protection consists of circuitry that
provides protection from thermal damage. If the
temperature exceeds the over-temperature threshold the
module will shut down. The module will try to restart after
shutdown. If the over-temperature condition still exists
during restart, the module will shut down again. This
restart trial will continue until the temperature is within
specification.
Remote Sense
The DNS provide Vo remote sensing to achieve proper
regulation at the load points and reduce effects of
distribution losses on output line. In the event of an open
remote sense line, the module shall maintain local sense
regulation through an internal resistor. The module shall
correct for a total of 0.5V of loss. The remote sense line
impedance shall be < 10Ω.
Vo
Sense
Vin
GND
RL
Distribution Losses
Distribution Losses
Distribution
L
Distribution
Figure 36: Effective circuit configuration for remote sense
operation
OutputVoltageProgramming
The output voltage of the DNS can be programmed to any
voltage between 0.75Vdc and 3.3Vdc by connecting one
resistor (shown as Rtrim in Figure 37) between the TRIM
and GND pins of the module. Without this external
resistor, the output voltage of the module is 0.7525 Vdc.
To calculate the value of the resistor Rtrim for a particular
output voltage Vo, please use the following equation:
Ω
⎥
⎦
⎤
⎢
⎣
⎡−
−
=5110
7525.0
21070
Vo
Rtrim
For example, to program the output voltage of the DNS
module to 1.8Vdc, Rtrim is calculated as follows:
Ω=Ω
⎥
⎦
⎤
⎢
⎣
⎡−
−
=KRtrim 155110
7525.08.1
21070
DNS can also be programmed by apply a voltage between
the TRIM and GND pins (Figure 38). The following
equation can be used to determine the value of Vtrim
needed for a desired output voltage Vo:
(
)
7525.01698.07.0 −
×
−
=
VoVtrim
For example, to program the output voltage of a DNS
module to 3.3 Vdc, Vtrim is calculated as follows
(
)
VVtrim 267.07525.03.31698.07.0 =−
×
−
=
Vo
TRIM
GND
RLoad
Rtrim
Figure 37: Circuit configuration for programming output voltage
using an external resistor
Vo
TRIM
GND
RLoad
Vtrim
+
_
Figure 38: Circuit Configuration for programming output voltage
using external voltage source
Table 1 provides Rtrim values required for some common
output voltages, while Table 2 provides value of external
voltage source, Vtrim, for the same common output
voltages. By using a 1% tolerance trim resistor, set point
tolerance of ±2% can be achieved as specified in the
electrical specification.
Table 1
Vo(V) Rtrim(KΩ)
0.7525 Open
1.2 41.97
1.5 23.08
1.8 15.00
2.5 6.95
3.3 3.16
Table 2
Vo(V) Vtrim(V)
0.7525 Open
1.2 0.624
1.5 0.573
1.8 0.522
2.5 0.403
3.3 0.267

DS_DNS04SIP06A_07172008
11
The output voltage tracking feature (Figure 40 to Figure
42) is achieved according to the different external
connections. If the tracking feature is not used, the
TRACK pin of the module can be left unconnected or
tied to Vin.
For proper voltage tracking, input voltage of the tracking
power module must be applied in advance, and the
remote on/off pin has to be in turn-on status. (Negative
logic: Tied to GND or unconnected. Positive logic: Tied
to Vin or unconnected)
Figure 40: Sequential Start-up
Figure 41: Simultaneous
Figure 42: Ratio-metric
FEATURE DESCRIPTIONS (CON.)
The amount of power delivered by the module is the
voltage at the output terminals multiplied by the output
current. When using the trim feature, the output voltage
of the module can be increased, which at the same
output current would increase the power output of the
module. Care should be taken to ensure that the
maximum output power of the module must not exceed
the maximum rated power (Vo.set x Io.max ≤P max).
Voltage Margining
Output voltage margining can be implemented in the
DNS modules by connecting a resistor, R margin-up, from the
Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, Rmargin-down, from the
Trim pin to the output pin for margining-down. Figure 39
shows the circuit configuration for output voltage
margining. If unused, leave the trim pin unconnected. A
calculation tool is available from the evaluation
procedure which computes the values of R margin-up and
Rmargin-down for a specific output voltage and margin
percentage.
Vo
On/Off
Vin
GND
Trim
Q2
Q1
Rmargin-up
Rmargin-down
Rtrim
Figure 39: Circuit configuration for output voltage margining
Voltage Tracking
The DNS family was designed for applications that have
output voltage tracking requirements during power-up
and power-down. The devices have a TRACK pin to
implement three types of tracking method: sequential
start-up, simultaneous and ratio-metric. TRACK
simplifies the task of supply voltage tracking in a power
system by enabling modules to track each other, or any
external voltage, during power-up and power-down.
By connecting multiple modules together, customers can
get multiple modules to track their output voltages to the
voltage applied on the TRACK pin.
PS1 PS1
PS2PS2
PS1 PS1
PS2PS2
PS1 PS1
PS2
PS2
-ΔV

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FEATURE DESCRIPTIONS (CON.)
Sequential Start-up
Sequential start-up (Figure 40) is implemented by placing
an On/Off control circuit between VoPS1 and the On/Off pin
of PS2.
R1
R2
VoPS1
PS1
Vin
On/Off
On/Off
PS2
VoPS2
Vin
C1
Q1
R3
Simultaneous
Simultaneous tracking (Figure 41) is implemented by
using the TRACK pin. The objective is to minimize the
voltage difference between the power supply outputs
during power up and down.
The simultaneous tracking can be accomplished by
connecting VoPS1 to the TRACK pin of PS2. Please note
the voltage apply to TRACK pin needs to always higher
than the VoPS2 set point voltage.
TRACK
VoPS1
PS2
VoPS2
PS1
Vin
Vin
On/Off On/Off
Ratio-Metric
Ratio–metric (Figure 42) is implemented by placing the
voltage divider on the TRACK pin that comprises R1 and
R2, to create a proportional voltage with VoPS1 to the Track
pin of PS2.
For Ratio-Metric applications that need the outputs of PS1
and PS2 reach the regulation set point at the same time.
The following equation can be used to calculate the value
of R1 and R2.
The suggested value of R2 is 10kΩ.
21
2
1,
2,
RR R V
V
PSO
PSO
+
=
R1
R2
TRACK
VoPS1
PS2
VoPS2
PS1
Vin
Vin
On/Off On/Off
The high for positive logic
The low for negative logic

DS_DNS04SIP06A_07172008
13
THERMAL CONSIDERATIONS
Thermal management is an important part of the system
design. To ensure proper, reliable operation, sufficient
cooling of the power module is needed over the entire
temperature range of the module. Convection cooling is
usually the dominant mode of heat transfer.
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
Thermal Testing Setup
Delta’s DC/DC power modules are characterized in
heated vertical wind tunnels that simulate the thermal
environments encountered in most electronics
equipment. This type of equipment commonly uses
vertically mounted circuit cards in cabinet racks in which
the power modules are mounted.
The following figure shows the wind tunnel
characterization setup. The power module is mounted
on a test PWB and is vertically positioned within the
wind tunnel. The height of this fan duct is constantly kept
at 25.4mm (1’’).
Thermal Derating
Heat can be removed by increasing airflow over the
module. To enhance system reliability, the power
module should always be operated below the maximum
operating temperature. If the temperature exceeds the
maximum module temperature, reliability of the unit may
be affected.
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
MODULE
A
IR FLOW
12.7 (0.5”)
50.8
(
2.0”
)
FACING PWB PWB
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
25.4 (1.0”)
Figure 43: Wind tunnel test setup
THERMAL CURVES
Figure 44: Temperature measurement location
The allowed maximum hot spot temperature is defined at 125 ℃
DNS04S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 5V, Vo = 3.3V (Either Orientation)
0
1
2
3
4
5
6
7
60 65 70 75 80 85
Ambient Temperature (℃)
Output Current(A)
Natural
Convection
Figure 45: DNS04S0A0R06 (Standard) Output current vs.
ambient temperature and air velocity@Vin=5V, Vo=3.3V (Either
Orientation)
DNS04S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 5.0V, Vo = 1.5V (Either Orientation)
0
1
2
3
4
5
6
7
60 65 70 75 80 85
Ambient Temperature (℃)
Output Current(A)
Natural
Convection
100LFM
Figure 46: DNS04S0A0R06 (Standard)Output current vs.
ambient temperature and air velocity@Vin=5V, Vo=1.5V (Either
Orientation)

DS_DNS04SIP06A_07172008
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DNS04S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 5.0V, Vo = 0.75V (Either Orientation)
0
1
2
3
4
5
6
7
60 65 70 75 80 85
Ambient Temperature (℃)
Output Current(A)
Natural
Convection
Figure 47: DNS04S0A0R06 (Standard) Output current vs.
ambient temperature and air velocity@Vin=5V, Vo=0.75V (Either
Orientation)
DNS04S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 3.3V, Vo = 2.5V (Either Orientation)
0
1
2
3
4
5
6
7
60 65 70 75 80 85
Ambient Temperature (℃)
Output Current(A)
Natural
Convectio
Figure 48: DNS04S0A0R06 (Standard) Output current vs.
ambient temperature and air velocity@Vin=3.3V, Vo=2.5V
(Either Orientation)
DNS04S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 3.3V, Vo = 1.5V (Either Orientation)
0
1
2
3
4
5
6
7
60 65 70 75 80 85
Ambient Temperature (℃)
Output Current(A)
Natural
Convection
Figure 49: DNS04S0A0R06 (Standard) Output current vs.
ambient temperature and air velocity@Vin=3.3V, Vo=1.5V
(Either Orientation)
DNS04S0A0R06(Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 3.3V, Vo = 0.75V (Either Orientation)
0
1
2
3
4
5
6
7
60 65 70 75 80 85
Ambient Temperature (℃)
Output Current(A)
Natural
Convection
Figure 50: DNS04S0A0R06 (Standard) Output current vs.
ambient temperature and air velocity@Vin=3.3V, Vo=0.75V
(Either Orientation)

DS_DNS04SIP06A_07172008
15
MECHANICAL DRAWING
SMD PACKAGE (OPTIONAL) SIP PACKAGE

DS_DNS04SIP06A_07172008
16
PART NUMBERING SYSTEM
DNS 04 S 0A0 R 06 P F D
Product
Series Input Voltage Numbers of
Outputs
Output
Voltage
Package
Type
Output
Current
On/Off
logic Option Code
DNS - 6A
DNM - 10A
DNL - 16A
04 - 2.8~5.5V
10 –8.3~14V
S - Single 0A0 -
Programmable
R - SIP
S - SMD
06 - 6A
10 - 10A
16 - 16A
N- negative
P- positive
F- RoHS 6/6
(Lead Free)
D - Standard Function
MODEL LIST
Model Name Packaging Input Voltage Output Voltage Output Current Efficiency
5.0Vin, 3.3Vdc @ 6A
DNS04S0A0S06NFD SMD 2.8 ~ 5.5Vdc 0.75 V~ 3.3Vdc 6A 94.0%
DNS04S0A0S06PFD SMD 2.8 ~ 5.5Vdc 0.75 V~ 3.3Vdc 6A 94.0%
DNS04S0A0R06NFD SIP 2.8 ~ 5.5Vdc 0.75 V~ 3.3Vdc 6A 94.0%
DNS04S0A0R06PFD SIP 2.8 ~ 5.5Vdc 0.75 V~ 3.3Vdc 6A 94.0%
CONTACT: www.delta.com.tw/dcdc
USA:
Telephone:
East Coast: [phone]
West Coast: [phone]
Fax: [phone]
Email: [email protected]
Europe:
Telephone: [phone]
Fax: [phone]
Email: [e-mail]
Asia & the rest of world:
Telephone: [phone] x6220
Fax: [phone]
Email: [email protected]
WARRANTY
Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon
request from Delta.
Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta
for its use, nor for any infringements of patents or other rights of third parties, which may result from its use. No license
is granted by implication or otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these
specifications at any time, without notice.