General Description

The APW7060 integrates a synchronous buck PWM controller and a linear controller to provide two regulated voltages in a single package. The PWM controller drives external N-channel MOSFETs and operates at a fixed 600kHz frequency.

Features

•Provides Two Regulated Voltages

- One Synchronous DC/DC Buck Controller

- One Linear Controller

•0.8V Internal Reference Voltage

- Both Controllers: 0.8V ± 2% Line, Load and Temp.

•Output Voltage Range

- PWM Controller : 0.8V to VIN

- Linear Controller : 0.8V to (12VCC-VGSpass)

•Full Duty Cycle Range for PWM Controller

- 0% to 100%

•Internal Loop Compensation for PWM Controller

•Internal 2ms Soft Start and Short Circuit Protection for both Controllers

•Both Controllers Drive N-Channel MOSFETs

•Small Converter Size

- 600kHz Constant Switching Frequency

- Simple SO-14 Package

•Shutdown Control

Applications

•Motherboard

•Graphics Cards

•12V, 5V and 3.3V Inputs DC-DC Converter

•DSP Supplies

•Embedded processor and I/O supplies