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LTC3445

Part Number	LTC3445
Manufacturer	Linear Technology
Description	I2C Controllable Buck Regulator
Published	Mar 25, 2010
Detailed Description	U U LTC3445 I2C Controllable Buck Regulator with Two LDOs in a 4mm × 4mm QFN FEATURES Buck Regulator ■ High Efficiency...
Datasheet	LTC3445 PDF File

Overview

U U LTC3445 I2C Controllable Buck Regulator with Two LDOs in a 4mm × 4mm QFN FEATURES Buck Regulator ■ High Efficiency: Up to 93% ■ 600mA Output Current (VCC1 = 3V, VOUT = 1.
3V) ■ Programmable Output Voltage: 0.
85V to 1.
55V ■ 2.
5V to 5.
5V Input Voltage Range ■ 1.
5MHz Constant Frequency or Spread Spectrum Option ■ Soft-Start LDOs ■ Two LDO Regulators: 0.
3V Dropout at 50mA PowerPath Controller ■ Dynamically Regulates VCC BATT I2C ■ Standard (100kHz) or Fast Mode (400kHz) ■ 24-Lead (4mm × 4mm) QFN Package U APPLICATIO S ■ Intel’s Microprocessor Supply (PXA27X) ■ Portable Instruments , LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark o...

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