S-8321 Datasheet (Seiko) - SMALL PACKAGE PFM CONTROL STEP-UP SWITCHING REGULATOR

S-8321, SMALL PACKAGE PFM CONTROL STEP-UP SWITCHING REGULATOR

Rev.2.0 SMALL PACKAGE PFM CONTROL STEP-UP SWITCHING REGULATOR S-8321/8322 Series The S-8321/8322 Series is a CMOS PFM-control step-up switching regulator which mainly consists of a reference voltage source, an oscillation circuit, a power MOS FET, and a comparator.

The new method PFM control circuit automatically switches the duty ratio according to load, offering products of low ripple over a wide range, high efficiency, high output current.

A step-up switching regulator is constructed by ext