ST1S40IPUR datasheet(1/30 Pages) STMICROELECTRONICS

부품명	ST1S40IPUR

상세설명	3 A DC step-down switching regulator

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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1 / 30 page

March 2012

Doc ID 17928 Rev 4

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30

ST1S40

3 A DC step-down switching regulator

Features

■ 3 A DC output current

■ 4.0 V to 18 V input voltage

■ Output voltage adjustable from 0.8 V

■ 850 kHz switching frequency

■ Internal soft-start

■ Integrated 95 m

Ω and 69 mΩ Power MOSFETs

■ All ceramic capacitor

■ Enable

■ Cycle-by-cycle current limiting

■ Current fold back short-circuit protection

■ VFQFPN4x4-8L, HSOP-8, and SO-8 and

packages

Applications

■

μP/ASIC/DSP/FPGA core and I/O supplies

■ Point of load for: STB, TVs, DVD

■ Optical storage, hard disk drive, printers,

audio/graphic cards

Figure 1.

Application circuit

Description

The ST1S40 is an internally compensated 850

kHz fixed-frequency PWM synchronous step-

down regulator. ST1S40 operates from 4.0 V to

18 V input, while it regulates an output voltage as

low as 0.8 V and up to VIN.

The ST1S40 integrates a 95 m

Ω high side switch

and 69 m

Ω synchronous rectifier allowing very

high efficiency with very low output voltages.

The peak current mode control with internal

compensation delivers a very compact solution

with a minimum component count.

The ST1S40 is available in VFQFPN 4 mm x 4

mm 8 lead package, HSOP-8 and standard SO-8.

VFQFPN 4x4

SO8

www.st.com

유사한 부품 번호 - ST1S40IPUR

제조업체	부품명	데이터시트	상세설명
STMicroelectronics	ST1S40	1Mb / 29P	3 A DC step-down switching regulator 10-Oct-2013
	ST1S40	849Kb / 30P	3 A DC step-down switching regulator 28-Aug-2019
	ST1S40	849Kb / 30P	3 A DC step-down switching regulator 28-Aug-2019

More results

유사한 설명 - ST1S40IPUR

제조업체	부품명	데이터시트	상세설명
STMicroelectronics	L5987	1Mb / 42P	3 A step-down switching regulator 29-Aug-2008
	L7986TA	784Kb / 43P	3 A step-down switching regulator 16-Oct-2012
	L7981ATR	1Mb / 44P	3 A step-down switching regulator 01-Jul-2010
	L7981ATR	1Mb / 44P	3 A step-down switching regulator 01-Jul-2010
	PM8903	2Mb / 34P	3 A step-down monolithic switching regulator 01-Feb-2012
	ST1S40	1Mb / 29P	3 A DC step-down switching regulator 10-Oct-2013
	ST1S32PUR	809Kb / 29P	4 A DC step-down switching regulator 31-May-2012
	L7986TR	1Mb / 43P	3 A step-down switching regulator 05-Sep-2014
	ST1S31	1Mb / 35P	3 A DC step-down switching regulator 03-Mar-2016
	ST1S40	849Kb / 30P	3 A DC step-down switching regulator 28-Aug-2019

More results

ST1S40IPUR 데이터시트(PDF) 1 Page - STMicroelectronics

ST1S40IPUR 데이터시트(HTML) 1 Page - STMicroelectronics

유사한 부품 번호 - ST1S40IPUR

유사한 설명 - ST1S40IPUR

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