ST2S08B datasheet(1/18 Pages) STMICROELECTRONICS

部件名	ST2S08B

功能描述	Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator

PDF	18 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 18 page

This is information on a product in full production.

May 2012

Doc ID 18290 Rev 2

1/18

18

ST2S08B

Dual synchronous rectification, 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

■ Adjustable output voltage from 0.8 V

■ 2 % DC output voltage tolerance

■ Synchronous rectification

■ Integrated current limit

■ Inhibit function

■ Soft-start for start delay of 800 µs typ.

■ Typical efficiency: > 80 % at VOUT = 1.2 V

■ 1.5 A output current capability

■ Non-switching quiescent current: max 1.5 mA

over temperature range

■ RDS(ON) 150 mΩ (typ.)

■ Uses tiny capacitors and inductors

■ Available in QFN12L (4 x 4 mm)

Description

The ST2S08B is a dual step-down DC-DC

converter optimized for powering low-voltage

digital cores in ODD 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 5.5 V. A

high switching frequency of 1.5 MHz allows the

use of tiny surface-mounted components as well

as a resistor divider to set the output voltage

value. Only an inductor and two capacitors are

required. A low output ripple is guaranteed by the

current mode PWM topology and the utilization of

low ESR SMD ceramic capacitors. The device is

thermally protected and current limited. The

ST2S08B is available in the QFN12L (4 x 4 mm)

package.

QFN12L (4 x 4 mm)

Table 1.

Device summary

Order code

Package

Packaging

ST2S08BPQR

QFN12L (4 x 4 mm)

Tape and reel

www.st.com

类似零件编号 - ST2S08B

制造商	部件名	数据表	功能描述
STMicroelectronics	ST2S06	339Kb / 18P	Synchronous rectification 22-May-2013
	ST2S06A33	333Kb / 21P	Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator 18-Mar-2008
	ST2S06A33	296Kb / 18P	Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator 28-Jul-2009
	ST2S06A33PQR	333Kb / 21P	Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator 18-Mar-2008
	ST2S06A33PQR	296Kb / 18P	Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator 28-Jul-2009

More results

类似说明 - ST2S08B

制造商	部件名	数据表	功能描述
STMicroelectronics	ST1S03	342Kb / 17P	1.5A, 1.5 MHz adjustable, step-down switching regulator in DFN6 29-Mar-2007
	ST1S09	416Kb / 18P	2A, 1.5 MHz PWM step-down switching regulator with synchronous rectification 05-Jul-2007
	ST2S06A33	333Kb / 21P	Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator 18-Mar-2008
	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
	ST2S06A33	296Kb / 18P	Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator 28-Jul-2009
	ST1S09	387Kb / 18P	2 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification 19-Apr-2010
	ST1S30	193Kb / 11P	3 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification 09-Sep-2010

More results

ST2S08B 数据表(PDF) 1 Page - STMicroelectronics

ST2S08B 数据表(HTML) 1 Page - STMicroelectronics

类似零件编号 - ST2S08B

类似说明 - ST2S08B

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ST2S08B 数据表(PDF) 1 Page - STMicroelectronics

ST2S08B 数据表(HTML) 1 Page - STMicroelectronics

类似零件编号 - ST2S08B

类似说明 - ST2S08B

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