STEVAL-ISA067V1 datasheet(1/4 Pages) STMICROELECTRONICS

부품명	STEVAL-ISA067V1

상세설명	Dual step-down controller with auxiliary voltages demonstration board based on the PM6681A for industrial system power

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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Data brief

For further information contact your local STMicroelectronics sales office.

April 2009

Doc ID 15643 Rev 1

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STEVAL-ISA067V1

Dual step-down controller with auxiliary voltages demonstration

board based on the PM6681A for industrial system power

Features

■ 5.5 V to 36 V input voltage range

■ Vout1: 3.3 V, Iout1 > 2.5 A (or adjustable output

voltage)

■ Vout2: 1.8 V, Iout2 > 2.5 A (or adjustable output

voltage)

■ 0.9 - 3.3 V adjustable LDO delivers 100 mA

peak current

■ 5 V LDO delivers 100 mA peak current

■ 1.237 V ± 1% reference voltage available

■ Loss-less current sensing using low-side

MOSFET RDS(on)

■ Negative current limit

■ Soft-start internally fixed at 2 ms

■ Soft output discharge

■ Latched UVP

■ Non-latched OVP

■ Selectable pulse-skipping at light loads

■ Selectable minimum frequency (33 kHz) in

pulse-skip mode

■ 4 mW maximum quiescent power

■ Independent power-good signals

■ Output voltage ripple compensation

■ RoHS compliant

Description

This demonstration board is based on the

PM6681A, a dual step-down controller with

adjustable output voltages that can be used in

industrial power systems. The PM6681A

demonstration board allows testing all the

device's functions and provides two switching

sections, with (typically) 3.3 V (OUT1) and 1.8 V

(OUT2) outputs from 5.5 V to 36 V input voltage.

The typical operating switching frequency of the

two available sections is 200 kHz/300 kHz,

respectively. Each switching section delivers more

than 2.5 A output current.

An internal linear regulator provides a fixed 5 V

output voltage. Another internal linear regulator

provides an adjustable output voltage (default 2.5

V). Both linear regulators can deliver up to 100

mA peak current.

STEVAL-ISA067V1

www.st.com

유사한 부품 번호 - STEVAL-ISA067V1

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제조업체	부품명	데이터시트	상세설명
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	AN2565	1Mb / 29P	PM6680A evaluation kit dual step-down controller with auxiliary voltages 07-Apr-2008
	AN2833	2Mb / 32P	Dual step-down controller with auxiliary voltages for industrial system power 24-Feb-2009
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	AN2938	1Mb / 39P	Power system demonstration kit based on the PM6686 dual 19-Jun-2009

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