SC15A DAC HDLV
Family
595 Millich Dr. Suite 103, Campbell, CA 95008
Tel. (408) 871-2400 www.Switch-Power.com
Description
The SC15A DAC is a low-cost, 15-amp, nonisolated DC-DC converter
with an amazingly small footprint of only 0.8 in2. Designed for today’s high
power microprocessors, the SC15A accepts either 5V or 3.3V inputs
and offers DAC controlled outputs from 1.25V to 3.5V.
Using Switch Power’s proprietary V2™ architecture, the SC15A DAC
provides ultrafast transient response, improved line and load regulation,
and very high efficiency. It also incorporates short-circuit protection,
Enable / Disable control, output voltage trim, and remote sense.
Features
• Low Cost
• 15-amp Output Current
• 90% Efficiency
• Industry-standard Pin-out
• Low 0.6" Profile
• Nonisolated Output
• Remote Sense
• Trim Function
• Enable / Disable
• Short-circuit Protection
with auto-restart
• Fast Transient Response
• High-temperature
Operation
• Output Precharge
Capability
Patents 5,770,940
5,978,195
6,127,814
Common Specifications
Min Nom Max Units Notes
Input
Voltage 4.5 5 5.5 Vdc 4.75Vin Startup
3.0 3.3 3.6 Vdc
Current 15 A
Control Voltage
High = Disable 2.4 Vdc Source 500mA
Low = Enable 0.4 Vdc Open=Enable
E/D Current 1 mA
Output
Current 15 A
Voltage Setpoint Accuracy ±2 %Vnom
Voltage Trim Range -10 +10 %Vnom
Line Regulation ±0.1 %Vnom
Load Regulation ±0.3 %Vnom
Current Limit 18 21 30 A
Dynamic Response
0 to 15A load 200 mV ∆i/∆t = 3A/µs
19 µs
15 to 0A load 200 mV ∆i/∆t = 3A/µs
19 µs
Temperature Regulation ±0.02 %Vout/°C
General
MTBF 1,000 k Hrs Bellcore TR332, 25°C
Operating Temperature -25 85 °C
-40 85 °C Optional
Storage Temperature -40 125 °C
Switching Frequency 200 300 400 kHz
SC15A DAC HDLV
Family
595 Millich Dr. Suite 103, Campbell, CA 95008
Tel. (408) 871-2400 www.Switch-Power.com
2-15-03
1
inches (mm)
0.xx ±0.01 inches
0.xxx ±0.005 inches
0.012 (0.3) typ pin thickness
0.020 (0.5) typ pin width
0.135 (3.43) typ pin length below shoulder
3.00 (76.2)
0.24
(6.1)
0.2
(5.08)
0.1
(2.54)
0.5
(12.7)
0.65
(16.51)
0.37
(9.4)
0.6
(15.24)
5616
Pin Description
1. Vout
2. Vout
3. Sense
4. Vout
5. Gnd
6. VID0
7. VID1
8. VID2
Pin Description
9. VID3
10. VID4
11. Gnd
12. Vin
13. Vin
14. No Pin
15. Trim
16. Enable
V
in
Vout
12 - V
in
13 - V
in
V
out
- 1
V
out
- 2
V
out
- 4
Remote Sense - 3
511
16 15
Enable Trim
100µf
10V
100µf/ 10V
SC15A DAC
0
20
40
60
80
100
7060500-10-20
Ambient Temperature (C)
%Max Output
SC15A-5Sxx Temperature Derating
80 90
400 lfm
still air
0
20
40
60
80
100
7060500-10-20
Ambient Temperature (C)
%Max Output
SC15A-3Sxx Temperature Derating
80 90
400 lfm
still air
200 lfm
-40 -30
“-Z” Low
Temp
Option
“-Z” Low
Temp
Option
-30-40
VID4 VID3 VID2 VID1 VID0 Output
011111.30
011101.35
011011.40
011001.45
010111.50
010101.55
010011.60
010001.65
001111.70
001101.75
001011.80
001001.85
000111.90
000101.95
000012.00
000002.05
VID4 VID3 VID2 VID1 VID0 Output
111112.00
111102.10
111012.20
111002.30
110112.40
110102.50
110012.60
110002.70
101112.80
101102.90
101013.00
101003.10
100113.20
100103.30
100013.40
100003.50
Output Voltage Selection
Standard Options
Add option designators to the end of the part number. Example; S15A-5SDAC-Z
Option Description
Z -40°C operation
Standard Options
Nominal Output Output Short-circuit Noise Efficiency
Input Voltage Current Current (A) (mV pp) (%)
(V) (V) (A) typ max typ
SC15A-5SDAC 5 1.3 to 3.5 15 22 100 90
SC15A-3SDAC 3.3 1.3 to 2.5 15 22 100 90
N/A
3.3 Vin
