STEVAL-ISA069V1 datasheet(1/4 Pages) STMICROELECTRONICS

tên linh kiện	STEVAL-ISA069V1

Giải thích chi tiết về linh kiện	3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package

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April 2012

Doc ID 022882 Rev 1

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STEVAL-ISA069V1

3 A / 1.5 MHz step-down synchronous switching regulator based on

the ST1S31 in DFN 3x3 package

Data brief

Features

■ 4 A peak output current

■ From 2.8 V to 5.5 V input voltage

■ Output voltage adjustable from 0.8 V

■ 1.5 MHz switching frequency

■ Internal soft-start and enable

■ Integrated 60 m

Ωand 45 mΩpower MOSFETs

■ All ceramic capacitors

■ Power Good (POR)

■ Cycle-by-cycle current limiting

■ Current foldback short-circuit protection

■ RoHS compliant

Description

The STEVAL-ISA069V1 demonstration board is

based on the ST1S31, which is an internally

compensated 1.5 MHz fixed-frequency PWM

synchronous step-down regulator. This device

operates from 2.8 V to 5.5 V input, while it

regulates an output voltage as low as 0.8 V and

up to Vin.

The peak current mode control with internal

compensation delivers a very compact solution

with a minimum component count.

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