Datasheet Analog Devices LTC3445EUF#TRPBF — 数据表

LTC3445
I2C Controllable
Buck Regulator with Two LDOs
in a 4mm × 4mm QFN U FEATURES DESCRIPTIO Buck Regulator
■ High Efficiency: Up to 93%
■ 600mA Output Current (V
CC1 = 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 V
CC BATT
2
IC
■ Standard (100kHz) or Fast Mode (400kHz)
■ 24-Lead (4mm × 4mm) QFN Package The LTC®3445 contains a high efficiency monolithic synchronous current mode buck regulator, two LDO regulators, a PowerPathTM controller and an I2CTM interface.
The buck regulator has a 6-bit programmable output range
of 0.85V to 1.55V. Also, the buck regulator uses either a …