General Description

APW7304 is a 4A synchronous buck converter with integrated power MOSFETs. The APW7304 design with a current-mode control scheme, can convert wide input voltage of 4.5V to 24V to the output voltage adjustable from 0. 8V to 20V to provide excellent output voltage regulation. The APW7304 is equipped with an automatic PFM/PWM mode to reduce the switching losses. At heavy load, the IC works in PWM.

The APW7304 is also equipped with Power-on-reset, soft start, and whole protections (over-temperature, and current-limit) into a single package.

This device, available SOP-8P, provides a very compact system solution external components and PCB area.

特性 Features

· Wide Input Voltage from 4.5V to 24V

· 4A Peak Output Current

· Adjustable Output Voltage from 0.8V to 20V

· Intergrated N-MOSFET

· Fixed 340kHz Switching Frequency

· Stable with Low ESR Ceramic Output Capacitors

· Power-On-Reset Detection

· Programmable Soft-Start

· Over-Temperature Protection

· Current-Limit Protection with Frequency Foldback

· Enable/Shutdown Function

· Small SOP-8P Packages

· Lead Free and Green Devices Available (RoHS Compliant)

Applications

· LCD Monitor/TV

· Set-Top Box

· DSL, Switch HUB

· Notebook Computer