DESCRIPTION

A7330 is a wide input voltage, high efficiency step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. A7330 provides up to 3.1A output current at 125kHz switching frequency.

A7330 integrates control scheme to achieve high-accuracy constant current control without the expensive, high accuracy current sense resistor. It also integrates adaptive gate drive to achieve excellent EMI performance passing EN55022 Class B EMC standard without adding additional EMI components while maintaining high conversion efficiency.

Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency foldback at short circuit.

The A7330 is available in PSOP8 package.

FEATURES

? Up to 3.1 A output current

? 125kHz Switching Frequency Eases EMI Design

? 91 Effici ency (V OUT =5V@2.4A at V IN =

? Resistor Programmable for Output Cable Drop

Compensation

? Cycle by Cycle Current Limit, Input Over Voltage

Protect, Thermal Shutdown, Input Under Voltage

Lockout

? Integrated Soft Start

? ±7.5 CC Accuracy

? ±2 CV Accuracy

? High Sid e R DSON 50m Ω

? Available in PSOP8 p ackage

APPLICATION

? Car Charger/ Adaptor

? General Purpose CV/CC Power Supply

? Rechargeable Portable Devices