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. The information furnished in this publication is subject to changes without notice.
ZSPM4012
High Efficiency 2A Synchronous Buck Converter
ZSPM4012 Block Diagram
PG
EN
VCC
4.2V
VCC
VCC
MONITOR
&
CONTROL
Under-Voltage
Protection
VCC
Over-Voltage
Protection
Thermal
Protection
Over Current
Protection
FB
Oscillator
Ramp
Generator
Bootstrap
Voltage
BST
VCC
Typical Applications
Vref
&
Soft Start
Gate
Drive
Gate Drive
Control
C
BST
Wireless access points,
cable modems
Set-top boxes
DVD, LCD, LED supplies
Portable products,
including GPS, smart
phones, tablet PCs
Printers
VSW
L
OUT
VOUT
C
OUT
Comparator
Error Amp
Compensation
Network
Vref
Gate
Drive
PGND
R
TOP
PFM Mode
Comparator
FB
R
BOT
GND
Ordering Information
Ordering Code
ZSPM4012AA1W00
ZSPM4012AA1W15
ZSPM4012AA1W18
ZSPM4012AA1W25
ZSPM4012AA1W33
ZSPM4012AA1W50
ZSPM4012KIT
Description
ZSPM4012, 2A Synchronous Buck Converter: adjustable output, 0.9V to 5V,
ZSPM4012KIT, Evaluation Kit for 2A Synchronous Buck Converter
Package
7” reel with 1000 ICs
7” reel with 1000 ICs
7” reel with 1000 ICs
7” reel with 1000 ICs
7” reel with 1000 ICs
7” reel with 1000 ICs
Kit
Sales and Further Information
Zentrum Mikroelektronik
Dresden AG
Grenzstrasse 28
01109 Dresden
Germany
ZMD America, Inc.
1525 McCarthy Blvd., #212
Milpitas, CA 95035-7453
USA
www.zmdi.com
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
analog@zmdi.com
Zentrum Mikroelektronik
Dresden AG, Korean Office
POSCO Centre Building
West Tower, 11th Floor
892 Daechi, 4-Dong,
Kangnam-Gu
Seoul, 135-777
Korea
Phone +82.2.559.0660
Fax
+82.2.559.0700
Phone +49.351.8822.7.776
Fax
+49.351.8822.8.7776
Phone 855-ASK-ZMDI
(855-275-9634)
Phone +81.3.6895.7410
Fax
+81.3.6895.7301
Phone +886.2.2377.8189
Fax
+886.2.2377.8199
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 any 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.
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 Performance Characteristics – ZSPM401x Family ............................................................................... 10
Description of Circuit ......................................................................................................................................... 13
Ordering Information ......................................................................................................................................... 20
Related Documents ........................................................................................................................................... 20
Document Revision History ............................................................................................................................... 21
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