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APW7062A

Anpec Electronics Coropration
Part Number APW7062A
Manufacturer Anpec Electronics Coropration
Description Synchronous Buck PWM Controller
Published Nov 17, 2008
Detailed Description APW7062A Synchronous Buck PWM Controller Features • • www.DataSheet4U.com General Description The APW7062A is a voltag...
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APW7062A
APW7062A

Overview
APW7062A Synchronous Buck PWM Controller Features • • www.
DataSheet4U.
com General Description The APW7062A is a voltage mode, synchronous PWM controller which drives dual N-Channel MOSFETs.
It integrates the control, monitoring and protection functions into a single package, provides one controlled power outputs with under-voltage and over-current protection.
APW7062A provide excellent regulation for output load variation.
An internal 0.
8V temperature-compensated reference voltage is designed to meet the requirement of low output voltage applications.
It includes a 200kHz free-running triangle-wave oscillator that is adjustable from 70kHz to 800kHz.
The power-on-reset (POR) circuit monitors the VCC, EN, OCSET input voltage to start-up or shutdown the IC.
The over-current protection (OCP) monitors the output current by using the voltage drop across the upper MOSFET’s RDS(ON), eliminating the need for a current sensing resistor.
The under-voltage protection (UVP) monitors the voltage of FB pin for short-circuit protection.
The over-current protection trip cycle the soft-start function until the fault events be removed.
Under-voltage protection will shutdown the IC directly.
Simple Single-Loop Control Design - Voltage-Mode PWM Control Fast Transient Response - Full 0–100% Duty Ratio Excellent Output Voltage Regulation - 0.
8V Internal Reference - ± 1% Over Line Voltage and Temperature • • • • Over Current Fault Monitor - Uses Upper MOSFETs RDS (ON) Converter Can Source and Sink Current Small Converter Size - 200kHz Free-Running Oscillator - Programmable from 70kHz to 800kHz • 14-Lead SOIC Package • Lead Free Available (RoHS Compliant) Applications • • • • Graphic Cards DDR Memory Power Supply DDR Memory Termination Voltage Low-Voltage Distributed Power Supplies Pinouts RT OCSET SS NC FB EN GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC PVCC LGATE PGND BOOT UGATE PHASE ANPEC reserves the right to make changes to improve reliability or manufacturability without notice...


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