General Description

The APW7063 integrates PWM and linear controller, as well as themonitoring and protectionfunctions into a single package. The synchronous PWM controller which drives dualN-channel MOSFETs, which provides one controlled power outputs with under-voltage and over-current protections. Linear controller drives an external N-channel MOSFET with under-voltage protection.

特性 Features

? Provide Two Regulated Voltages

- Synchronous Rectified Buck PWM Controller

- Linear Controller

? Fast Transient Response

- 0~85 Duty Ratio

? Excellent Output Voltage Regulation

- 0.8V Internal Reference

- ±1 Over Line Voltage and Temperature

? Over Current Protection

- Sense Low-Side MOSFET’s RDS(ON)

? Under Voltage Lockout

? Small Converter Size

- 250KHz Free-Running Oscillator

- Programmable From 70kHz to 800kHz

? 14-Lead SOIC Package

? Lead Free Available (RoHS Compliant)

Applications

? Graphic Cards

? Memory Power Supplies

? DSL or Cable MODEMs

? Set Top Boxes

? Low-Voltage Distributed Power Supplies