MB39C007 datasheet(21/52 Pages) FUJITSU

Part #	MB39C007

Description	2 ch DC/DC Converter IC Built-in Switching FET & voltage detection function, PFM/PWM Synchronous Rectification, and Down Conversion Support

PDF	52 Pages

Scroll/Zoom	100%

Manufacturer	FUJITSU [fujitsu semiconductor]

Direct Link

Logo

21 / 52 page

MB39C007

DS04-27246-2E

• Notes for circuit design

The switching operation of this IC works by monitoring and controlling the peak current which, incidentally,

serves as a form of short-circuit protection. However, do not leave the output short-circuited for long periods of

time. If the output is short-circuited where VIN < 2.9 V, the current limit value (peak current to the inductor) tends

to rise. Leaving in the short-circuit state, the temperature of this IC will continue rising and activate the thermal

protection.

Once the thermal protection stops the output, the temperature of the IC will go down and operation will be

restarted, after which the output will repeat the starting and stopping.

Although this effect will not destroy the IC, the thermal exposure to the IC over prolonged hours may affect the

peripherals surrounding it.

MB39C007 Datasheet(PDF) 21 Page - fujitsu semiconductor