ST1S03PUR datasheet(1/16 Pages) STMICROELECTRONICS

部品番号	ST1S03PUR

部品情報	1.5 A, 1.5 MHz adjustable, step-down switching regulator

PDF	16 Pages

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メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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This is information on a product in full production.

November 2014

DocID10992 Rev 7

1/16

ST1S03

1.5 A, 1.5 MHz adjustable, step-down switching regulator

Datasheet

- production data

Features

 Step-down current mode PWM (1.5 MHz)

DC-DC converter

 2% DC output voltage tolerance

 Internal soft-start for STARTUP current

limitation and power on delay of 50 - 100 µs

 Typical efficiency: > 70% over all operating

conditions

 1.5 A output current capability

 Not switching quiescent current: max 2.5 mA

over temperature range

 Switch VDS: max. 350 mV at ISW = 750 mA

 Uses tiny capacitors and inductors

 Available in DFN6D 3 x 3 mm package with

exposed pad

Description

The ST1S03 is a step-down DC-DC converter

optimized for powering a low voltage digital core

in HDD applications and, generally, to replace the

high current linear solution when the power

dissipation may cause a high heating of the

application environment. It provides up to 1.5 A

over an input voltage range of 3 V to 16 V. A high

switching frequency (1.5 MHz) allows the use of

tiny surface-mount components: as well as the

resistor divider to set the output voltage value,

only an inductor, a Schottky diode and two

capacitors are required. Besides, a low output

ripple is guaranteed by the current mode PWM

topology and by the use of low ESR SMD ceramic

capacitors. The device is thermal protected and

current limited to prevent damages due to an

accidental short-circuit. The ST1S03 device is

available in a DFN6D package.

DFN6D (3 x 3 mm)

Table 1. Device summary

Order code

Package

Packaging

ST1S03PUR

DFN6D (3 x 3 mm)

Tape and reel

www.st.com

同様の部品番号 - ST1S03PUR

メーカー	部品番号	データシート	部品情報
STMicroelectronics	ST1S03PU	342Kb / 17P	1.5A, 1.5 MHz adjustable, step-down switching regulator in DFN6 29-Mar-2007
	ST1S03PU	374Kb / 16P	1.5 A, 1.5 MHz adjustable, step-down switching regulator 07-Mar-2008
	ST1S03PU	346Kb / 17P	1.5A, 1.5 MHz adjustable, step-down switching regulator in DFN6 29-Mar-2007

More results

同様の説明 - ST1S03PUR

メーカー	部品番号	データシート	部品情報
STMicroelectronics	ST1S03	538Kb / 11P	1.5A, 1.5 MHZ ADJUSTABLE, STEP-DOWN SWITCHING REGULATOR IN DFN6 03-Mar-2005
	ST1S03	342Kb / 17P	1.5A, 1.5 MHz adjustable, step-down switching regulator in DFN6 29-Mar-2007
	ST1S03	374Kb / 16P	1.5 A, 1.5 MHz adjustable, step-down switching regulator 07-Mar-2008
	ST1S06XX	426Kb / 20P	Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed or adjustable, step-down switching regulator 15-Apr-2008
	L5983	966Kb / 37P	1.5 A step-down switching regulator 16-Sep-2008
	ST1S03A	276Kb / 14P	1.5 A, 1.5 MHz adjustable, with inhibit function step-down switching regulator 03-Jun-2008
	ST1S09	387Kb / 18P	2 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification 19-Apr-2010
	ST2S08B	757Kb / 18P	Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator 18-May-2012
	ST1S03PMR	346Kb / 17P	1.5A, 1.5 MHz adjustable, step-down switching regulator in DFN6 29-Mar-2007
	A6986F	6Mb / 72P	38 V 1.5 A synchronous step-down switching regulator 15-Apr-2015

More results

ST1S03PUR データシート(PDF) 1 Page - STMicroelectronics

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