SC20A SERIES

HDLV

Family

Description

The SC20A is a low-cost, 20-Amp, non-isolated DC-DC converter with

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.

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

• 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

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

3.0

3.3

3.6

Vdc

Current

20

A

Control Voltage

High = Disable

2.4

Vdc

Source 500 mA

Low = Enable

0.4

Vdc

Open=Enable

E/D Current

1

mA

Output

Current

20

A

Voltage Setpoint Accuracy

±2

Voltage Trim Range

-10

+10

Line Regulation

±0.1

Load Regulation

±0.3

Current Limit

22

25

34

A

Dynamic Response

0 to 20 A load

200

mV

∆i/∆t = 3 A/µs

19

µs

20 to 0 A load

200

mV

∆i/∆t = 3 A/µs

19

µs

Temperature Regulation

General

MTBF

1,000

kHrs

Bellcore TR332, 25 °C

Operating Temperature

-25

85

°C

-40

85

°C

optional

Storage Temperature

-40

125

°C

Switching Frequency

200

300

400

kHz

Reliable Electronic Solutions

Asia-Pacific:

Europe:

The Americas:

www.bourns.com

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

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.