Reliable Electronic Solutions
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Features
• Low Cost
• 20-Amp Output Current
• 90 % Efficiency
• Industry-standard Pin-out
• Low 0.6 " Profile
• Nonisolated Output
• Remote Sense
• Trim Function
• Enable / Disable
• Short-circuit Protection
• Fast Transient Response
• High-temperature
• Output Precharge
Patents 5,770,940
with auto-restart
Operation
Capability
5,978,195
6,127,814
Input
Voltage
Current
Control Voltage
E/D Current
Output
Current
Voltage Setpoint Accuracy
Voltage Trim Range
Line Regulation
Load Regulation
Current Limit
Dynamic Response
Temperature Regulation
General
MTBF
Operating Temperature
Storage Temperature
Switching Frequency
Asia-Pacific:
Europe:
The Americas:
www.bourns.com
High = Disable
Low = Enable
0 to 20 A load
20 to 0 A load
TEL +886- (0)2 25624117 • FAX +886- (0)2 25624116
TEL +41-41 768 5555 • FAX +41-41 768 5510
TEL +1-951 781 5500 • FAX +1-951 781-5700
Description
The SC20A is a low-cost, 20-Amp, non-isolated DC-DC converter with
an amazingly small footprint of only 0.8 in
power microprocessors, the SC20A accepts either 5 V or 3.3 V inputs and
offers outputs from 1.3 V to 3.3 V. The SC20A also uses an industry-
standard pin-out making it easy to increase power in existing designs.
Using Bourns Switch Power's proprietary V
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.
S C 2 0 A S E R I E S
Common Specifications
Min
200
4.5
3.0
2.4
-10
-25
-40
-40
22
Nom
1,000
±0.1
±0.3
200
200
300
3.3
25
19
19
5
1
±0.02 %V
Max
+10
125
400
5.5
3.6
0.4
20
20
±2
34
85
85
%V
%V
%V
%V
Units
kHrs
Vdc
Vdc
Vdc
Vdc
kHz
mA
mV
mV
°C
°C
°C
µs
µs
A
A
A
out
2TM
nom
nom
nom
nom
2
. Designed for today's high
/°C
architecture, the SC20A
Notes
4.75 V
Source 500 mA
Open=Enable
∆i/∆t = 3 A/µs
∆i/∆t = 3 A/µs
Bellcore TR332, 25 °C
optional
in
Startup
Family
HDLV