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APW7137

Anpec Electronics Coropration
Part Number APW7137
Manufacturer Anpec Electronics Coropration
Description Step-Up Converter
Published Mar 12, 2010
Detailed Description www.DataSheet4U.com APW7137 1MHz, High Efficiency, Step-Up Converter with Internal FET Switch Features • • • • • • Wid...
Datasheet PDF File APW7137 PDF File

APW7137
APW7137


Overview
www.
DataSheet4U.
com APW7137 1MHz, High Efficiency, Step-Up Converter with Internal FET Switch Features • • • • • • Wide 2.
5V to 6V Input Voltage Range Built-in 0.
6Ω N-Channel MOSFET Built-in Soft-Start High Efficiency up to 90% <1µA Quiescent Current During Shutdown Current-Mode Operation - Stable with Ceramic Output Capacitors - Fast Transient Response General Description The APW7137 is a fixed switching frequency (1MHz typical), current-mode, step-up regulator with an integrated N-channel MOSFET.
The device allows the usage of small inductors and output capacitors for portable devices.
The current-mode control scheme provides fast transient response and good output voltage accuracy.
The APW7137 includes under-voltage lockout, current limit, and over-temperature shutdown preventing damage in the event of an output overload.
100 90 80 VIN=5V • • • • Current-Limit Protection Over-Temperature Protection with Hysteresis Available in a Tiny 5-Pin SOT-23 Package (RoHS Compliant) Lead Free and Green Devices Available E f f i c i e n c y ,η (%) 70 60 50 40 30 20 VIN=3.
3V Applications • • • • Cell Phone and Smart Phone PDA, PMP, MP3 Digital Camera Boost Regulators 10 0 0.
1 1 10 VOUT=12V 100 1000 Output Current, IOUT (mA) Pin Configuration Simplified Application Circuit VIN L1 10µH 5 VIN 2 GND LX 1 R1 1.
2MΩ VOUT 12V C2 4.
7µF LX 1 GND 2 FB 3 5 VIN 4 EN 5V C1 4.
7µF SOT-23-5 (Top View) OFF ON 4 APW7137 EN FB 3 R2 137kΩ ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev.
A.
4 - Oct.
, 2008 1 www.
anpec.
com.
tw www.
DataSheet4U.
com APW7137 Ordering and Marking Information APW7137 Assembly Material Handling Code Temperature Range Package Code APW7137 B : W37X Package Code B : SOT-23-5 Operating Ambient Temperature Range I : -40 to 85 oC Handling Code TR : Tape & Reel ...


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