SC1462A

High Efficiency Charge Pump Doubler POWER MANAGEMENT Description The SC1462A 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. The SC1462A charge pump can be used for applications that require up to 25mA of output current with VIN = 2.5V to 5.5V. Typical dropout voltage (2*Vin)-Vout is shown on page 8 for several values of Vin. Typ ic a l D ro p ou t V ol ta ge v s Io u t @ T a = 2 5 De g . C . Vin = 1.5 V Vin = 2.5 V Vin = 3.6 V Vin = 4.5 V Vin = 5.5 V SC1462A Features K Input supply voltage range of 1.65V to 5.5V KSmall size - 6 pin SOT-23 package KTypical efficiency of : K K K K K K 91% @ Vin = 2.5V, Iout = 15mA Short circuit and over-temperature protection 55µA typical input current @ no load Shutdown current