Description

The FAN5069 combines a high-efficiency Pulse-WidthModulated (PWM) controller and an LDO (Low DropOut) linear regulator controller. Synchronous rectification provides high efficiency over a wide range of load currents. Efficiency is further enhanced by using the low-side MOSFET’s RDS(ON) to sense current.

Features

■ General Purpose PWM Regulator and LDO Controller

■ Input Voltage Range: 3V to 24V

■ Output Voltage Range: 0.8V to 15V

– VCC

– 5V

■ Shunt Regulator for 12V Operation

■ Support for Ceramic Cap on PWM Output

■ Programmable Current Limit for PWM Output

■ Programmable Switching Frequency (200KHz to 600KHz)

■ RDS(ON) Current Sensing

■ Internal Synchronous Boot Diode

■ Soft-Start for both PWM and LDO

■ Multi-Fault Protection with Optional Auto-restart

■ 16-pin TSSOP Package

Applications

■ PC/Server Motherboard Peripherals

– VCC_MCH (1.5V), VDDQ (1.5V) and VTT_GTL (1.25V)

■ Power Supply for

– FPGA, DSP, Embedded Controllers, Graphic Card Processor, and Communication Processors

■ Industrial Power Supplies

■ High-Power DC-to-DC Converters