Features

 Supply Voltage: 5V/12V

 VIN Input Range: 3.0V to 13.2V

0.6V to 80 of VIN Output Range

Internal Reference: 0.6V

 Support Tracking Mode and Stand-Alone Mode

 Simple Single-Loop Control

Voltage-Mode PWM Control

Duty Cycle: 0 to 80

Fast Transient Response

 Fixed Oscillator Frequency: 200/300kHz

 Lossless, Programmable Over Current Protection

(Uses Lower MOSFET RDS(ON) )

 Start-Up into Pre-biased Output

 Built-In Thermal Shutdown

 Built-In Soft-Start

 Over Current/Voltage Protection

 Under Voltage Protection

 Integrated Boot Diode

 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

 Halogen and Antimony Free. “Green” Device (Note 3)

Applications

 Power Supplies for Microprocessors/Peripherals

PCs, Embedded Controllers, Memory Supplies

DSP and Core Communications Processor Supplies

 Subsystem Power Supplies

PCI, AGP, Graphics Cards and Digital TV

SSTL-2 and DDR/2/3 SDRAM Bus Termination Supply

 Cable Modems, Set Top Boxes, and DSL

Modems

 Industrial Power Supplies and General Purpose Supplies

 5V/12V Input DC-DC Regulators

 Low-Voltage Distributed Power Supplies