LTC3445 Description
U U LTC3445 I2C Controllable Buck Regulator with Two LDOs in a 4mm × 4mm QFN.
LTC3445 Key Features
- 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
- Soft-Start
- Two LDO Regulators: 0.3V Dropout at 50mA
- Dynamically Regulates VCC BATT I2C
- Standard (100kHz) or Fast Mode (400kHz)
- 24-Lead (4mm × 4mm) QFN Package
LTC3445 Applications
- 0.3V to 6V RUN, VTRACK, VBACKUP, PGOOD, ADD7, ADD6, FB, VCC BATT, BATTFAULT Voltages
- 0.3V to VCC1 SW Vol