For further information contact your local STMicroelectronics sales office.

August 2012

Doc ID 023540 Rev 1

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STEVAL-ISA104V1

Up to 3 A step-down switching regulator (Vin = 5.5 V to 48 V)

based on the ST1S14

Data brief

Features

overtemperature range

Description

The STEVAL-ISA104V1 is designed in order to

evaluate the ST1S14, a step-down monolithic

power switching regulator able to deliver up to 3

A; this high current level is also achieved thanks

to a HSOP8 package with exposed frame.

The output voltage can be set from 1.22 V.

An internal oscillator fixes the switching frequency

at 850 kHz.

Power Good open collector output validates the

regulated output voltage as soon as it reaches the

regulation.

Pulse-by-pulse current limit offers an effective

constant current short-circuit protection while the

current foldback decreases overstress in

persistent short-circuit condition.

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