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
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