LTC3445EUF

Conv DC-DC 2.5V to 5.5V Synchronous Step Down Triple-Out 0.85V to 1.55V 0.6A 24Pin QFN EP

DESCRIPTION

The LTC® 3445 contains a high efficiency monolithic synchronous current mode buck regulator, two LDO regulators, a PowerPathTM controller and an I2CTM interface.

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

APPLICATIONS

■ Intel’s Microprocessor Supply PXA27X

■ Portable Instruments