LTC3850IGN-2#TRPBF Description

The LTC3850IGN-2#TRPBF is a high-performance dual synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 780kHz. Power loss and supply noise are minimized by operating the two controller output stages out of phase.

LTC3850IGN-2#TRPBF Features

Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise

High Efficiency: Up to 95%

RSENSE or DCR Current Sensing

±1% 0.8V Output Voltage Accuracy

Phase-Lockable Fixed Frequency 250kHz to 780kHz

Supports Pre-Biased Output

Dual N-Channel MOSFET Synchronous Drive

Wide VIN Range: 4V to 30V Operation

Adjustable Soft-Start Current Ramping or Tracking

Foldback Output Current Limiting

Output Overvoltage Protection

Power Good Output Voltage Monitor

28-Pin Narrow SSOP Package

AEC-Q100 Qualified for Automotive Applications

LTC3850IGN-2#TRPBF Applications

Notebook and Palmtop Computers

Portable Instruments

Battery-Operated Digital Devices

DC Power Distribution Systems