LTC3869IGN-2#PBF Description
The LTC3869IGN-2#PBF is a high-performance dual synchronous step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phase lockable frequency of up to 780kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out-of-phase.
LTC3869IGN-2#PBF Features
Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
Accurate Multiphase Current Matching
RSENSE or DCR Current Sensing
±0.75% 0.6V Output Voltage Accuracy
Phase-Lockable Fixed Frequency 250kHz to 780kHz
High Efficiency: Up to 95%
Dual N-channel MOSFET Synchronous Drive
Wide VIN Range: 4V to 38V (40V Max) Operation
Wide VOUT Range: 0.6V to 12.5V Operation
Adjustable Soft-Start Current Ramping or Tracking
Foldback Output Current Limiting
Output Overvoltage Protection
Power Good Output Voltage Monitor
5V Low Dropout Regulator
Small 28-Lead QFN and Narrow SSOP Packages
LTC3869IGN-2#PBF Applications
Server Systems
Telecom Systems
Industrial and Medical Instruments
High Power Battery-Operated Devices
DC Power Distribution Systems
