Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302

10

NON-ISOLATED DC/DC CONVERTERS

6.5 Vdc - 13.8 Vdc Input, 1.025 Vdc - 1.2 Vdc/30 A Output

Mar. 07, 2011

Bel Power Inc., a subsidiary of Bel Fuse Inc.

Power Good

1. This module has a power good indicator output. Power good pin used positive logic and is open collector.

2. Power good pin can sink 10mA.

3. The maximum voltage pulled up externally on Power Good pin should not exceed 6V.

4. When a successful soft-start is completed, the power good pin will be pulled high.

CH1: Output Voltage

CH3: Power Good

Typical Start-up Using Remote ON/OFF(Vin=12.0V, Vout=1.2V, Io=30A)

Fundamental Circuit Diagram

Vin

Cin

S1

S2

Lf

Co

On