LTC3445 I2C Controllable Buck Regulator

LTC3445 I2C Controllable Buck Regulator

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 S.

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.