ST1S40 datasheet(1/29 Pages) STMICROELECTRONICS

tên linh kiện	ST1S40

Giải thích chi tiết về linh kiện	3 A DC step-down switching regulator

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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This is information on a product in full production.

October 2013

DocID17928 Rev 5

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ST1S40

3 A DC step-down switching regulator

Datasheet

- production data

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 and 69 m Power MOSFETs

 All ceramic capacitor

 Enable

 Cycle-by-cycle current limiting

 Current fold back short-circuit protection

 Available in HSOP-8, VFQFPN4x4-8L, and

SO8 packages

Applications

P/ASIC/DSP/FPGA core and I/O supplies

 Point of load for: STB, TVs, DVD

 Optical storage, hard disk drive, printers,

audio/graphic cards

Description

The ST1S40 device is an internally compensated

850 kHz fixed-frequency PWM synchronous step-

down regulator. The 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

 high side switch

and 69 m

 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 HSOP-8, VFQFPN 4

mm x 4 mm - 8 lead, and standard SO8 package.

Figure 1. Application circuit

VFQFPN 4 x 4

SO8

HSOP-8

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Số phần tương tự - ST1S40

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	ST1S40	849Kb / 30P	3 A DC step-down switching regulator 28-Aug-2019
	ST1S40IPUR	1Mb / 30P	3 A DC step-down switching regulator 01-Mar-2012
	ST1S40	849Kb / 30P	3 A DC step-down switching regulator 28-Aug-2019

More results

Mô tả tương tự - ST1S40

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	L5987	1Mb / 42P	3 A step-down switching regulator 29-Aug-2008
	ST1S40IPUR	1Mb / 30P	3 A DC step-down switching regulator 01-Mar-2012
	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
	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

ST1S40 bảng dữ liệu(PDF) 1 Page - STMicroelectronics

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