Description

The SC1462 is a versatile charge pump designed for use in battery operated power supply applications over the wide input range of 1.65 to 5.5 volts. A simple, low quiescent current charge pump doubler can be implemented without costly inductors or capacitors. Internal MOSFETs and control circuitry eliminate the need for costly board space and design time. The small 6 lead SOT-23 package helps minimize board space.

Features

◆ Input supply voltage range of 1.65V to 5.5V

◆ Small size - 6 pin SOT-23 package

◆ Typical efficiency of :

91 @ VIN = 2.5V, IOUT = 45mA

94 @ VIN = 3.6V, IOUT = 55mA

◆ Short circuit and over-temperature protection

◆ 140μA typical input current @ no load

◆ Shutdown current <1μA

◆ Designed to work with ceramic or tantalum capacitors

◆ Fixed frequency of 160kHz

◆ All specifications rated over full temperature range (-40°C to 85°C)

Applications

◆ Cellular phones

◆ Handheld devices

◆ LCD Display