FEATURES
High Efficiency:
91% @ 12Vin, 5V/15A out
Size: 30.5x27.9x11.4mm
(1.20”×1.10”×0.45”) -- Vertical
30.5x27.9x12.9mm
(1.20”×1.10”×0.51”) -- Horizontal
Voltage and resistor-based trim
No minimum load required
Output voltage programmable from
0.9Vdc to 5.0Vdc via external resistors
Fixed frequency operation
Input UVLO, output OCP, SCP
Power good output signal
Remote ON/OFF (default: Positive)
ISO 9000, TL 9000, ISO 14001 certified
manufacturing facility
UL/cUL 60950-1 (US & Canada)
Recognized, and TUV (EN60950-1)
Certified
CE mark meets 73/23/EEC and 93/68/EEC
directives
Delphi NC15 Series Non-Isolated Point of Load
DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 15A
The Delphi NC15 Series, 12V 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 NC15 series operates from a 12V nominal input, provides up to 15A
of power in a vertical or horizontal mounted through-hole package and
the output can be resistor- or voltage-trimmed from 0.9Vdc to 5.0Vdc. It
provides a very cost effective point of load solution. 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.
OPTIONS
Vertical or horizontal versions
Negative ON/OFF logic
APPLICATIONS
DataCom
Distributed power architectures
Servers and workstations
LAN / WAN applications
Data processing applications
DATASHEET
DS_NC12S15A_12022010
TECHNICAL SPECIFICATIONS
(Ambient Temperature=25°C, minimum airflow=200LFM, nominal V
in
=12Vdc unless otherwise specified.)
PARAMETER
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Operating Temperature (Vertical)
Operating Temperature (Horizontal)
Storage Temperature
Input/Output Isolation Voltage
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Input Reflected-Ripple Current
Input Ripple Rejection
OUTPUT CHARACTERISTICS
Output Voltage Adjustment Range
Output Voltage Set Point
Output Voltage Regulation
Over Load
Over Line
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Output Current Range
Output Voltage Over-shoot at Start-up
Output Voltage Under-shoot at Power-Off
Output DC Current-Limit Inception
Output Short-Circuit Current
DYNAMIC CHARACTERISTICS
Output Dynamic Load Response
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling Time
Turn-On Transient
Start-Up Time, from On/Off Control
Start-Up Time, from input power
Minimum Output Capacitance
Maximum Output Startup Capacive Load
Minimum Input Capacitance
EFFICIENCY
Vo=0.9V
Vo=1.2V
Vo=1.5V
Vo=1.8V
Vo=2.5V
Vo=3.3V
Vo=5.0V
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control
Logic High
Logic Low
GENERAL SPECIFICATIONS
MTBF
Weight
NOTES and CONDITIONS
Min.
NC12S0A0V/H15
Typ.
Max.
14
130
125
125
NA
10.2
12.0
9.0
7.5
1.5
13.8
Units
Vdc
°C
°C
°C
V
V
V
V
V
A
mA
mA
mA
dB
V
%
%
%
mV
mV
A
%
mV
A
With appropriate air flow and derating, see Figs 33
With appropriate air flow and derating, see Figs 39
Non-isolated
0
-40
-40
100% Load, 10.2Vin, 5.0Vout
Vin=12V, Vout=0.9V
Remote OFF
Refer to Figure 31.
120Hz
0.9
-2.5
-1.0
-0.2
8.1
65
9
150
45
5.0
+2.5
+1.0
+0.2
50
0
20
15
1
100
16
With a 1.0% trim resistor
Io=Io_min to Io_max
Vin=Vin_min to Vin_max
5Hz to 20MHz bandwidth
Full Load, 100nF ceramic, 10µF tantalum
Full Load, 100nF ceramic, 10µF tantalum
Vin=12V, Turn ON
Vin=12V, Turn OFF
Hiccup mode
Hiccup mode
12Vin, 100nF ceramic, 10µF tantalum load cap,
10A/µs
50% Io_max to 75% Io_max
75% Io_max to 50% Io_max
Settling to be within regulation band (Vo +/- 2.5%)
From Enable high to 10% of Vo
From Vin=12V to 10% of Vo
Ex: OSCON 6.3V/680µF (ESR 13 mΩ max.)
Full Load
Ex: OSCON 16V/270µF (ESR 18 mΩ max.)
Vin=12V, Io=15A
Vin=12V, Io=15A
Vin=12V, Io=15A
Vin=12V, Io=15A
Vin=12V, Io=15A
Vin=12V, Io=15A
Vin=12V, Io=15A
fixed
Positive logic (internally pulled high)
Module On (or leave the pin open)
Module Off
Telcordia SR-332 Issue1 Method1 Case3 at 50°C
100
100
200
10
10
680
6800
270
75
79
81
84
87
89
91
300
2.4
0
2.1
16.5
5.5
0.8
mV
mV
µs
ms
ms
µF
µF
µF
%
%
%
%
%
%
%
KHz
V
V
M hours
grams
NC12S15A_12022010
2
ELECTRICAL CHARACTERISTICS CURVES
90
80
70
90
80
70
Efficiency (%)
60
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
10.2
12
13.8
Efficiency (%)
60
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
10.2
12
13.8
Output Current (A)
Output Current (A)
Figure 1:
Converter efficiency vs. output current
(0.9V output voltage)
100
90
80
Figure 2:
Converter efficiency vs. output current
(1.2V output voltage)
100
90
80
Efficiency (%)
60
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
10.2
12
13.8
Efficiency (%)
70
70
60
50
40
30
20
10.2
10
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
12
13.8
Output Current (A)
Output Current (A)
Figure 3:
Converter efficiency vs. output current
(1.8V output voltage)
100
90
80
Figure 4:
Converter efficiency vs. output current
(2.5V output voltage)
100
90
80
Efficiency (%)
60
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
10.2
12
13.8
Efficiency (%)
70
70
60
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
10.2
12
13.8
Output Current (A)
Output Current (A)
Figure 5:
Converter efficiency vs. output current
(3.3V output voltage)
Figure 6:
Converter efficiency vs. output current
(5.0V output voltage)
NC12S15A_12022010
3
ELECTRICAL CHARACTERISTICS CURVES
Figure 7:
Output ripple & noise at 12Vin, 0.9V/15A out
Figure 8:
Output ripple & noise at 12Vin, 1.2V/15A out
Figure 9:
Output ripple & noise at 12Vin, 1.8V/15A out
Figure 10:
Output ripple & noise at 12Vin, 2.5V/15A out
Figure 11:
Output ripple & noise at 12Vin, 3.3V/15A out
Figure 12:
Output ripple & noise at 12Vin, 5.0V/15A out
NC12S15A_12022010
4
ELECTRICAL CHARACTERISTICS CURVES
Figure 13:
Turn on delay time at 12Vin, 0.9V/15A out
Ch2:Vin Ch3:Vout Ch4:PWRGD
Figure 14:
Turn on delay time Remote On/Off, 0.9V/15A out
Ch2:ENABLE Ch3:Vout Ch4:PWRGD
Figure 15:
Turn on delay time at 12Vin, 2.5V/15A out
Ch2:Vin Ch3:Vout Ch4:PWRGD
Figure 16:
Turn on delay time at Remote On/Off, 2.5V/15A out
Ch2:ENABLE Ch3:Vout Ch4:PWRGD
Figure 17:
Turn on delay time at 12Vin, 5.0V/15A out
Ch2:Vin Ch3:Vout Ch4:PWRGD
Figure 18:
Turn on delay time at Remote On/Off, 5.0V/15A out
Ch2:ENABLE Ch3:Vout Ch4:PWRGD
NC12S15A_12022010
5
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