LTC7812IUH#TRPBF

DC DC Switching Controllers Overview

The LTC7812IUH#TRPBF is a high-performance synchronous Boost+Buck DC/DC switching regulator controller from Analog Devices Inc. It features independent step-up and step-down controllers capable of driving all N-channel power MOSFET stages. The device supports an input voltage range of 5V to 38V and regulates output voltages from 800mV to 60V with up to 20A output current. Operating at a fixed switching frequency of 850kHz, it offers a maximum duty cycle of 100%. Designed for surface mount installation in a QFN package, it functions within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports cascaded operation to regulate output voltage from inputs above, below, or equal to the output level
• Contains independent boost and buck controllers for separate or combined regulation
• Drives all N-channel power MOSFET stages for high efficiency
• Enables low EMI and wide input range pass-through configurations

DC DC Switching Controllers Applications

• Wide input range cascaded boost plus buck regulators
• Low IQ VMID boosting applications
• Low EMI pass-through regulated power systems
• High efficiency DC/DC conversion requiring flexible topology

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging versus #PBF for tube. Confirm availability status as supply may be limited. Ensure the operating temperature range and package dimensions match the design requirements. Cross-reference the datasheet for exact electrical characteristics relevant to the application.

DC DC Switching Controllers Selection Notes

Select this component when a single controller must manage both boost and buck topologies simultaneously. It is suitable for designs requiring input voltages that vary relative to the required output levels. Consider the 850kHz switching frequency for component sizing. Evaluate thermal performance given the 20A capability and QFN package constraints.

DC DC Switching Controllers Part Context

This part belongs to the LTC7812 family of synchronous boost-buck controllers. It shares functional similarities with other Linear Technology PMICs but is distinct in its dual-controller architecture. Unlike the LTC7811 which handles triple outputs, this model focuses on two-channel flexibility. It serves as a core control IC for complex power delivery networks.

DC DC Switching Controllers Replacement Considerations

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