LTC3526 Datasheet PDF - Linear Technology

DESCRIPTION
The LTC®3526/LTC3526B are synchronous, fixed frequency step-up DC/DC converters with output disconnect. Synchronous rectification enables high efficiency in the low profile 2mm × 2mm DFN package. Battery life in single AA/AAA powered products is extended further with an 850mV start-up voltage and operation down to 500mV once started.

FEATUREs
â–  Delivers 3.3V at 100mA from a Single Alkaline/NiMH Cell or 3.3V at 200mA from Two Cells
â–  VIN Start-Up Voltage: 850mV
â–  1.6V to 5.25V VOUT Range
â–  Up to 94% Efficiency
â–  Output Disconnect
â–  1MHz Fixed Frequency Operation
â–  VIN > VOUT Operation
â–  Integrated Soft-Start
â–  Current Mode Control with Internal Compensation
■ Automatic Burst Mode® Operation with 9µA Quiescent Current (LTC3526)
â–  Low Noise PWM Operation (LTC3526B)
â–  Internal Synchronous Rectifier
■ Logic Controlled Shutdown (IQ < 1µA)
â–  Anti-Ringing Control
■ Low Profile (2mm × 2mm × 0.75mm) DFN Package

APPLICATIONS
â–  Medical Instruments
â–  Flash-Based MP3 Players
â–  Noise Canceling Headphones
â–  Wireless Mice
â–  Bluetooth Headsets