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LTC3445 - I2C Controllable Buck Regulator

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.

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Datasheet preview – LTC3445

Datasheet Details

Part number LTC3445
Manufacturer Linear Technology
File Size 475.08 KB
Description I2C Controllable Buck Regulator
Datasheet download datasheet LTC3445 Datasheet
Additional preview pages of the LTC3445 datasheet.

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Full PDF Text Transcription

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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 of Linear Technology Corporation. PowerPath is a trademark of Linear Technology Corporation.
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