DESCRIPTION
The LTC®3526L-2/LTC3526LB-2 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 a 680mV start-up voltage and operation down to 500mV once started.

FEATUREs
■ Delivers 3.3V at 100mA from a Single Alkaline/NiMH Cell or 3.3V at 200mA from Two Cells
■ VIN Start-Up Voltage: 680mV
■ 1.5V to 5.25V VOUT Range
■ Up to 94% Efficiency
■ Output Disconnect
■ 2MHz Fixed Frequency Operation
■ VIN > VOUT Operation
■ Integrated Soft-Start
■ Current Mode Control with Internal Compensation
■ Burst Mode® Operation with 9µA IQ (LTC3526L-2)
■ Low Noise PWM Operation (LTC3526LB-2)
■ Internal Synchronous Rectifier
■ Logic Controlled Shutdown (IQ < 1µA)
■ Anti-Ring Control
■ Low Profile (2mm × 2mm × 0.75mm) 6-Lead DFN Package

APPLICATIONS
■ Medical Instruments
■ Noise Canceling Headphones
■ Wireless Mice
■ Bluetooth Headsets