LTC3863HMSE#PBF | Multi-Phase Synchronous Buck Controller | High Current DC/DC

Product Overview

     The LTC3863HMSE#PBF is a high-efficiency, multi-phase synchronous buck DC/DC controller designed to deliver high current with minimal input ripple and superior transient response. Featuring current mode control, programmable switching frequency, and phase interleaving, the device drives external N-channel MOSFETs to create scalable power solutions. Its performance and flexibility make it ideal for powering processors, FPGAs, ASICs, and point-of-load (POL) converters in server, telecom, industrial, and distributed power architectures.

Key Features

• Multi-phase synchronous buck controller for high current delivery
• Current mode control for fast transient response
• Programmable switching frequency
• Phase interleaving reduces input current ripple
• Drives external N-channel MOSFETs
• Soft-start and adjustable gate drive dead-time
• Precise current sharing between phases
• Over-current and over-voltage protection
• Flexible sequencing and tracking modes
• Compact HVQFN package
• Operating over wide temperature range

Applications

• High current power rails for CPUs, GPUs, FPGAs, and ASICs
• Distributed power systems
• Server, telecom, and data center power supplies
• Industrial automation and control
• Storage and networking infrastructure
• High-performance computing platforms

Electrical Characteristics