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LTC3112 Datasheet 2.5a Synchronous Buck-boost DC/dc Converter

Manufacturer: Linear Technology Corporation

General Description

The LTC®3112 is a fixed frequency synchronous buck-boost DC/DC converter with an extended input and output range.

The unique 4-switch, single inductor architecture provides low noise and seamless operation from input voltages above, below or equal to the output voltage.

With an input range of 2.7V to 15V, the LTC3112 is wellsuited for a wide variety of single or multiple cell battery, backup capacitor or wall adapter source applications.

Key Features

  • n Regulated Output with VIN Above, Below or Equal to VOUT n 2.7V to 15V Input Voltage Range n 2.5V to 14V Output Voltage Range n 2.5A Continuous Output Current: VIN ≥ 5V, VOUT = 5V, PWM Mode n Output Current Monitor n Up to 95% Efficiency n 750kHz Switching Frequency, Synchronizable Between 300kHz and 1.5MHz n Internal N-Channel MOSFETs n Selectable Burst Mode® Operation, IQ = 50µA n Shutdown Current < 1µA n Overvoltage Protection n Output Disconnect in Shutdown n Internal Soft-Start n Small, Th.

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