LTC7851IUHH-1#TRPBF

DC DC Switching Controllers Overview

The LTC7851IUHH-1 is a quad output multiphase synchronous step-down switching regulator controller from Analog Devices, utilizing a constant frequency voltage mode architecture. It supports an input voltage range of 7V to 14V and features a switchable switching frequency between 250kHz and 3MHz. The device provides four independent outputs with control characteristics including current limit, enable, frequency control, power good indication, soft start, and tracking. Designed for high-performance applications, it operates within a junction temperature range of -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Quad output multiphase synchronous step-down switching regulator controller
• Constant frequency voltage mode architecture
• Switchable switching frequency from 250kHz to 3MHz
• Integrated control features including current limit, enable, and tracking

DC DC Switching Controllers Applications

• High-density server and data center power supplies
• Graphics processing unit (GPU) core voltage regulation
• Artificial intelligence accelerator power delivery
• High-performance computing platform voltage regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the part number corresponds to the -1 variant, which may have distinct electrical specifications compared to the standard LTC7851 series. Ensure compatibility with the intended DrMOS or discrete MOSFET gate drive requirements before procurement.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring four independent regulated outputs from a single IC. The wide switching frequency range allows optimization for efficiency versus component size. Ensure the external power stage components support the required current densities and thermal constraints associated with the selected operating frequency and load conditions.

DC DC Switching Controllers Part Context

The LTC7851 family serves as a versatile solution for multi-phase buck converter designs in modern electronics. The -1 suffix typically denotes specific performance enhancements or pin-compatible variations within the product line. This controller integrates essential management functions to simplify the design of complex power distribution networks in space-constrained environments.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.