General Description

The APW7120 is a fixed 300kHz frequency, voltage mode,and synchronous PWM controller . The device drives two low cost N-channel MOSFETs and is designed to work with single 5~12V or two supply voltage(s), providing excellent regulation for load transients.

Features

• Operatingwith Single 5~12V Supply Voltage or Two Supply V oltages

• Drive Dual Low Cost N-Channel MOSFETs

- Adaptive Shoot-Through Protection

• Built-in Feedback Compensation

- V oltage-ModePWM Control

- 0~100 Duty Ratio

- Fast Transient Response

• ±2 0.8V Reference

- Over Line, Load Regulation, and Operating T emperature

• Programmable Over-Current Protecti on

- Using RDS(ON) of Low-Side MOSFET

• Hiccup-Mode Under-V oltage Protection

• 1 18 Over-V oltage Protection

• Adjustable Output Voltage

• Small Converter Size

- 300kHz Constant Switching Frequency

- Small SOP-8 Package

• Built-In Digital Soft-Start

• Shutdown Control Using an External MOSFET

• Lead Free and Green Devices Available (RoHSCompli ant)

Applications

• Motherboard

• Graphics Card

• High Current, up to 20A, DC-DC Converters