High Efficiency 2A Synchronous

Buck Converter

ZSPM4012B

Datasheet

© 2016 Integrated Device Technology, Inc.

2

January 27, 2016

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

S

EN

PGND

PG

PFM Mode

Comparator

Vref

4.2V

Compensation

Network

High-Side Switch

Low-Side Switch

ZSPM4012B Block Diagram

Ordering Information

Ordering Code

Description

Package

ZSPM4012BA1W00

2A Synchronous Buck Converter: adjustable output, 0.9V to 5.5V, 16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4012BA1W15

2A Synchronous Buck Converter: fixed output, 1.5V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4012BA1W18

2A Synchronous Buck Converter: fixed output, 1.8V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4012BA1W25

2A Synchronous Buck Converter: fixed output, 2.5V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4012BA1W33

2A Synchronous Buck Converter: fixed output, 3.3V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4012BA1W50

2A Synchronous Buck Converter: fixed output, 5.0V,16-pin 3x3mm QFN

7” reel with 1000 ICs

ZSPM4012BKIT

ZSPM4012B Evaluation Kit for 2A Synchronous Buck Converter

Kit

Corporate Headquarters

6024 Silver Creek Valley Road

San Jose, CA 95138

www.IDT.com

Sales

1-800-345-7015 or 408-284-8200

Fax: 408-284-2775

www.IDT.com/go/sales

Tech Support

www.IDT.com/go/support

DISCLAIMER Integrated Device Technology, Inc. (IDT) reserves the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance

specifications and operating parameters of the described products are determined in an independent state and are not guaranteed to perform the same way when installed in customer products. The

information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an

implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property

rights of IDT or any third parties.

IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be

reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.

Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the

property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary. All contents of this document are copyright of Integrated

Device Technology, Inc. All rights reserved.