Datasheet Analog Devices LTC3853EUJ#PBF — 数据表

LTC3853
Triple Output,
Multiphase Synchronous
Step-Down Controller
DESCRIPTION FEATURES Triple, 120° Phased Controllers Reduce Required
Input Capacitance and Power Supply Induced Noise
n Configurable as a 180° Dual Phase Controller Plus a
Single Phase Controller
n The Third Phase Can Regulate Up to a 13.5V Output
n High Efficiency: Up to 92%
n R
SENSE or DCR Current Sensing
n ±0.75% 0.8V Output Voltage Accuracy
n Phase-Lockable Fixed Frequency 250kHz to 750kHz
n Supports Pre-Biased Outputs
n Dual N-Channel MOSFET Synchronous Drive
n Wide V Range: 4.5V to 24V Operation (28V Abs Max)
IN
n Adjustable Soft-Start Current Ramping or Tracking
n Foldback Output Current Limiting
n Output Overvoltage Protectio Dual Power Good Output Voltage Monitors
n 40-Lead 6mm × 6mm QFN Package The LTC®3853 is a high performance triple output stepdown switching regulator controller that drives all Nchannel synchronous power MOSFET stages. Power loss
and supply noise are minimized by operating the output …