LTC7871
Overview
The LTC®7871 is a high performance bidirectional buck or boost switching regulator controller that operates in either buck or boost mode on demand. It regulates in buck mode from VHIGH-to-VLOW and boost mode from VLOW-to-VHIGH depending on a control signal, making it ideal for 48V/12V automotive dual battery systems.
- Unique Architecture Allows Dynamic Regulation of Input Voltage, Output Voltage or Current
- Operates with External Gate Drivers and MOSFETs
- VHIGH Voltages Up to 100V; VLOW Voltages Up to 60V
- Synchronous Rectification: Up to 98% Efficiency
- ADI-Proprietary Advanced Current Mode Control n ±1% Voltage Regulation Accuracy Overtemperature
- Accurate, Programmable Inductor Current Monitoring and Bidirectional Regulation
- SPI Compliant Serial Interface
- Operation Status and Fault Report
- Programmable VHIGH, VLOW Margining
- Phase-Lockable Frequency: 60kHz to 750kHz
