150KHz, 2A PWM BUCK DC/DC CONVERTER

DESCRIPTION

The UTC P3576B series are monolithic IC designed for a

step-down DC/DC converter. The external shutdown function can be

controlled by logic level and then come into standby mode.

Regarding protected function, thermal shutdown is to prevent over

temperature operating from damage, and current limit is against over

current operating of the output switch. If current limit function occurs

and VFB is down, the switching frequency will be reduced.

The UTC P3576B series operates at a switching frequency of

150KHz thus allow smaller sized filter components than what would

be needed with lower frequency switching regulators. The output

fixed 5V.

FEATURES

* Output load current: 2A

* Operating voltage can be up to 40V

* 150KHz fixed switching frequency.

* Low power standby mode

* High efficiency

* Internal current and thermal limit

* ON/OFF shutdown control input.

* Short Circuit Protect (SCP).