Description

The FAN5365 is a high-frequency, ultra-fast transient response, synchronous step-down, DC-DC converter optimized for low-power applications using small, low-cost inductors and capacitors. The FAN5365 supports up to 800mA or 1A load current.

Features

■ High Efficiency (>88) at 6MHz

■ 800mA or 1A Output Current

■ Regulation Maintained with VIN from 2.3V to 5.5V

■ 6-Bit VOUT Programmable from 0.75 to 1.975V

■ 6MHz Fixed-Frequency Operation (PWM Mode)

■ Excellent Load and Line Transient Response

■ Small Size, 470nH Inductor Solution

■ ±2 DC Voltage Accuracy in PWM Mode

■ 25ns Minimum On-Time

■ High-Efficiency, Low-Ripple, Light-Load PFM

■ Smooth Transition between PWM and PFM

■ 40μA Operating PFM Quiescent Current

■ I2C™-Compatible Interface up to 3.4Mbps

■ Pin-Selectable or I2C™ Programmable Output Voltage

■ 9-Bump, 1.27 x 1.29mm, 0.4mm Pitch WLCSP Package

Applications

■ 3G, WiFi®, WiMAX™, and WiBro® Data Cards

■ Netbooks®, Ultra-Mobile PCs

■ SmartReflex™-Compliant Power Supply

■ Split Supply DSPs and μP Solutions OMAP™, XSCALE™

■ Handset Graphic Processors (NVIDIA®, ATI)