LTC3525ESC6-3.3

Conv DC-DC 0.85V to 4.5V Synchronous Step Up Single-Out 3.3V 0.06A Micropower 6Pin SC-70

DESCRIPTION

The LTC®3525-3/LTC3525-3.3/LTC3525-5 are high efficiency synchronous step-up DC/DC converters with output disconnect that can start up with an input as low as 0.85V. They offer a compact, high efficiency alternative to charge pumps in single cell or dual cell alkaline or Li-Ion applications. Only three small external components are required. The LTC3525 is offered in fixed output voltages of 3V, 3.3V or 5V.

FEATURES

■ Up to 95% Efficiency

■ Output Disconnect and Inrush Current Limit

■ Fixed Output Voltages of 3V, 3.3V or 5V

■ Delivers 65mA at 3V from a 1V Input

■ Delivers 60mA at 3.3V from a 1V Input,

■r 140mA at 3.3V from a 1.8V Input

■ Delivers 175mA at 5V from a 3V Input

■ Burst Mode® Operation: IQ = 7µA

■ Only Three External Components

■ VIN > VOUT Operation

■ <1µA Shutdown Current

■ Antiringing Control

■ Short-Circuit and Overtemperature Protection

■ Very Low Profile of 1mm

■ Tiny 6-Lead SC70 Package

APPLICATIONS

■ MP3 Players

■ Portable Instruments

■ Glucose Meters

■ Digital Cameras