SC15A SERIES
HDLV
Family
Description
The SC15A is a low-cost, 15-amp, non-isolated DC-DC converter with an
amazingly small footprint of only 0.8 in
2
. Designed for today's high power
microprocessors, the SC15A accepts either 5 V or 3.3 V inputs and offers
outputs from 1.3 V to 3.3 V. The SC15A also uses an industry-standard
pin-out making it easy to increase power in existing designs.
Using Bourns Switch Power's proprietary V
2TM
architecture, the SC15A
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
• Non-isolated Output
• Remote Sense
• Trim Function
• Enable / Disable
• Short-circuit Protection
• Fast Transient Response
• High-temperature
Operation
• Output Precharge
Capability
Input
Voltage
Current
Control Voltage
High = Disable
Low = Enable
E/D Current
Common Specifications
Min
4.5
3.0
Nom
5
3.3
Max
5.5
3.6
15
Units
Vdc
Vdc
A
Vdc
Vdc
mA
Notes
4.75 V
in
Startup
2.4
0.4
1
Source 500 mA
Open=Enable
Output
Current
Voltage Setpoint Accuracy
Voltage Trim Range
Line Regulation
Load Regulation
Current Limit
Dynamic Response
0 to 15 A load
15 to 0 A load
Temperature Regulation
-10
±0.1
±0.3
21
200
19
200
19
15
±2
+10
18
30
A
%V
nom
%V
nom
%V
nom
%V
nom
A
mV
∆i/∆t
= 3 A/µs
µs
mV
∆i/∆t
= 3 A/µs
µs
±0.02 %V
out
/°C
Patents 5,770,940
5,978,195
6,127,814
General
MTBF
Operating Temperature
Storage Temperature
Switching Frequency
1,000
-25
-40
-40
200
85
85
125
400
300
k Hrs
°C
°C
°C
kHz
Bellcore TR332, 25 °C
Optional
Asia-Pacific:
TEL +886- (0)2 25624117 • FAX +886- (0)2 25624116
Europe:
TEL +41-41 768 5555 • FAX +41-41 768 5510
The Americas:
TEL +1-951 781 5500 • FAX +1-951 781-5700
Reliable Electronic Solutions
www.bourns.com
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
SC15A SERIES
Electrical Specifications
Nominal Output Output
Input
Voltage Current
(V)
(V)
(A)
5
3.3
15
5
2.5
15
5
1.9
15
5
1.8
15
5
1.5
15
3.3
3.3
3.3
3.3
2.5
1.9
1.8
1.5
15
15
15
15
Short-circuit
Current (A)
typ
22
22
22
22
22
22
22
22
22
Noise
(mV pp)
typ
100
100
100
100
100
100
100
100
100
HDLV
Family
Efficiency
(%)
typ
SC15A-5S3.3
SC15A-5S2.5
SC15A-5S1.9
SC15A-5S1.8
SC15A-5S1.5
SC15A-3S2.5
SC15A-3S1.9
SC15A-3S1.8
SC15A-3S1.5
89
92
Standard Options
Add option designators to the end of the part number. Example; SC15A-5S3.3-B
Option
Description
B
No Remote Sense option removes sense pin
F
1 % SetpointAccuracy
Z
-40 °C Operation
X
Modified pin length followed by three digits (in mils)
SC15A-5Sxx Temperature Derating
0.83
(21.08)
0.45
(11.43)
0.123 (3.12)
0.37 max
(9.4 max)
100
still air
%Max Output
80
60
"-Z" Low
40
20
6 7 8 9 10
0.60
(15.24)
0.135 ± .015
(3.43 ± 0.38)
0.020 (0.51)
typ pin width
100
%Max Output
Pin Description
1,2,4V
out
3 Remote Sense
(removed for B option)
Description
Ground
V
in
Trim
Enable
still air
80
60
"-Z" Low
40
20
0
-40 -30 -20 -10 0
50 60
Ambient Temperature (C)
R
down
Trim
100 µf / 10 V
All outputs other than 1.5 V V
nom
R
up
=
8.09
- 22 (in kΩ)
V
out
- V
nom
All outputs other than 1.5 V V
nom
R
down
= 6.04 V
out
- 8.09
-22 (in kΩ)
V
nom
- V
out
Trim down when V
nom
= 1.5 V
R
down
= 2.37V
out
- 3.176
-10 (in kΩ)
V
nom
- V
out
V
in
7 - V
in
8 - V
in
SC15A
V
out
- 1
V
out
- 2
V
out
- 4
100 µf
10 V
70
80
90
Temp
Option
Temp
Option
400 lfm
3.00 (76.2)
12345
0.24
(6.1)
0.65
(16.51)
0.100 (2.54)
1.400 (35.56)
1.800 (45.72)
0
-40 -30
-20 -10 0
50 60
Ambient Temperature (C)
70
80
90
SC15A-3Sxx Temperature Derating
Pin
5,6
inches (mm)
7,8
0.xx ±0.01 inches
9
0.xxx ±0.005 inches
10
Note: Component placement may change. Recommended
keep-out area equals maximum length and width.
SC15A Trim Circuits
Trim Down
V
out
R
up
Gnd
0.012 (0.30)
typ pin thickness
400 lfm
200 lfm
Trim Up
Trim
V
out
Remote Sense - 3
10
Enable
9
Trim
5
6
Trim up when V
nom
= 1.5 V
R
up
=
3.176
- 10 (in kΩ)
V
out
- V
nom
REV. 02/07
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
ARM Technology
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