ZSPM4011B

High Efficiency 1A Synchronous Buck Converter

© 2013 Zentrum Mikroelektronik Dresden AG

— Rev.1.00— April 4, 2013

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.

Typical Applications

modems

GPS, smart phones, tablet

PCs

VCC

Over Current

Protection

Gate

Drive

Gate

Drive

Bootstrap

Voltage

VCC

Gate Drive

Control

FB

VSW

Vref

&

Soft Start

Oscillator

Ramp

Generator

Comparator

Error Amp

GND

Under-Voltage

Protection

MONITOR

&

CONTROL

Thermal

Protection

Over-Voltage

Protection

VCC

FB

VCC

VCC

BST



EN

PGND

PG

PFM Mode

Comparator

Vref

4.2V

Compensation

Network

High-Side Switch

Low-Side Switch

ZSPM4011B Block Diagram

Ordering Information

Ordering Code

Description

Package

ZSPM4011BA1W00

1A Synchronous Buck Converter: adjustable output, 0.9V to 5V, 16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4011BA1W15

1A Synchronous Buck Converter: fixed output, 1.5V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4011BA1W18

1A Synchronous Buck Converter: fixed output, 1.8V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4011BA1W25

1A Synchronous Buck Converter: fixed output, 2.5V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4011BA1W33

1A Synchronous Buck Converter: fixed output, 3.3V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4011BA1W50

1A Synchronous Buck Converter: fixed output, 5.0V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4011BKIT

ZSPM4011BKIT, Evaluation Kit for 1A Synchronous Buck Converter

Kit

Sales and Further Information

www.zmdi.com

Analog@zmdi.com

Zentrum Mikroelektronik

Dresden AG

Global Headquarters

Grenzstrasse 28

01109 Dresden, Germany

Central Office:

Phone +49.351.8822.0

Fax

+49.351.8822.600

ZMD America, Inc.

1525 McCarthy Blvd., #212

Milpitas, CA 95035-7453

USA

USA Phone +855.275.9634

Zentrum Mikroelektronik

Dresden AG, Japan Office

2nd Floor, Shinbashi Tokyu Bldg.

4-21-3, Shinbashi, Minato-ku

Tokyo, 105-0004

Japan

ZMD FAR EAST, Ltd.

3F, No. 51, Sec. 2,

Keelung Road

11052 Taipei

Taiwan

Zentrum Mikroelektronik

Dresden AG, Korea Office

U-space 1 Building

11th Floor, Unit JA-1102

670 Sampyeong-dong

Bundang-gu, Seongnam-si

Gyeonggi-do, 463-400

Korea

Phone +82.31.950.7679

Fax

+82.504.841.3026

Phone +408.883.6310

Fax

+408.883.6358

Phone +81.3.6895.7410

Fax

+81.3.6895.7301

Phone +886.2.2377.8189

Fax

+886.2.2377.8199

European Technical Support

Phone +49.351.8822.7.772

Fax

+49.351.8822.87.772

DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

Zentrum Mikroelektronik Dresden AG (ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The

information furnished hereby is believed to be true and accurate. However, under no circumstances shall ZMD AG be liable to a ny customer,

licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever arising out of or in

any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any

customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for

any damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty,

tort (including negligence), strict liability, or otherwise.

European Sales (Stuttgart)

Phone +49.711.674517.55

Fax

+49.711.674517.87955