LTC3528B Datasheet PDF - Linear Technology

DESCRIPTION
The LTC®3528/LTC3528B are synchronous, fixed frequency step-up DC/DC converters with output disconnect. High efficiency synchronous rectification, in addition to a 700mV start-up voltage and operation down to 500mV once started, provides longer run time for single or multiple cell battery-powered products.

FEATURES
â–  Delivers 3.3V at 200mA from a Single Alkaline/NiMH Cell or 3.3V at 400mA from Two Cells
â–  VIN Start-Up Voltage: 700mV
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
â–  Burst Mode® Operation with 12µA Quiescent Current (LTC3528)
â–  Low Noise PWM Operation (LTC3528B)
â–  Internal Synchronous Rectifier
â–  Logic Controlled Shutdown: <1µA
â–  Anti-Ringing Control
â–  Low Profile (3mm × 2mm × 0.75mm) DFN Package

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