DESCRIPTION
The LT1301 is a micropower step-up DC/DC converter that utilizes Burst Mode™ operation. The device can deliver 5V or 12V from a two-cell battery input. It features programmable 5V or 12V output via a logic-controlled input, noload quiescent current of 120µA and a shutdown pin which reduces supply current to 10µA. The on-chip power switch has a low 170mV saturation voltage at a switch current of 1A, a four-fold reduction over prior designs.

FEATURES
■ 12V at 120mA from 5V or 3.3V Supply
■ Supply Voltage as Low as 1.8V
■ Better High Current Efficiency Than CMOS
■ Up to 89% Efficiency
■ 120µA Quiescent Current
■ Shutdown to 10µA
■ Programmable 5V or 12V Output
■ Low VCESAT Switch: 170mV at 1A Typical
■ ILIM Pin Programs Peak Switch Current
■ Uses Inexpensive Surface Mount Inductors
■ 8-Lead DIP or SOIC Package

APPLICATIONS
■ Flash Memory VPP Generator
■ Palmtop Computers
■ Portable Instruments
■ Bar-Code Scanners
■ Personal Digital Assistants
■ PCMCIA Cards