General Description

The APW7083 is a 5A, synchronous, step-down converter with integrated 50mW P-channel power MOSFET and 20mW N-channel power MOSFET. The device, with current-mode control scheme, can convert 4.5~26V input voltage to the output voltage adjustable from 0.8 to 90 VIN to provide excellent output voltage regulation.

特性 Features

● Wide Input Voltage from 4.5V to 26V

● Output Current Up to 5A

● Adjustable Output Voltage from 0.8V to 90VIN

- 0.8V Reference Voltage

- ±2.5 System Accuracy

● Integrated 50mW P-Channel Power MOSFET and 20mW N-Channel Power MOSFET

● High Efficiency up to 95

● Current-Mode Operation

- Stable with Ceramic Output Capacitors

- Fast Transient Response

● Power-On-Reset Monitoring

● Fixed 380kHz Switching Frequency in PWM Mode

● Automatic Pulse-Skipping Mode (PSM)/PWM Mode Operation

● Built-in Digital Soft-Start

● Output Current-Limit Protection with Frequency Foldback

● 70 Under-Voltage Protection

● Over-Temperature Protection

● 118 Over-Voltage Protection

● <5μA Quiescent Current During Shutdown

● Thermal-Enhanced TQFN5x6-28 Package

● Pb-Free Available as an Option

● Lead Free and Green Devices Available (RoHS Compliant)

Applications

● LCD Monitor / TV

● SetTop Box

● Portable DVD

● Wireless LAN

● ADSL, Switch HUB

● Notebook Computer

● Step-Down Converters Requiring High Efficiency and 5A Output Current