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

10

NON-ISOLATED DC/DC CONVERTERS

6.0 Vdc - 13.2 Vdc Input, 0.5 Vdc - 1.6 Vdc Output, VRM11.1 Compatible

Aug. 13, 2010

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 5V.

4. When the output reaches the VID setting, the power good pin will be pulled high with the fixed delay of

85us.

Typical Start-up Using Remote ON/OFF(Vin=12.0V, VID=0x32, Io=0A)

Ch1: Vout

Ch2: OUTEN

Ch3: VR_READY

IMON Diagram

IMON is the output pin of sensed, thermally compensated, average current. The voltage at IMON pin is

proportional to the load current and the resistor value (RIMON), and internally clamped to 1.11 Vdc plus the

remote ground potential difference. If the clamped voltage (1.11 Vdc) is triggered, it will initiate the over-current

shutdown. During the dynamic VID, the OCP function of this pin is disabling to avoid falsely triggering.