LTC3838IUHF#TRPBF

DC DC Switching Controllers Overview

The LTC3838IUHF#TRPBF is a dual-channel, PolyPhase synchronous step-down DC/DC switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5 V to 38 V and supports output voltages from 600 mV to 5.5 V. The device delivers up to 30 A of output current across two channels. Key electrical specifications include a switch frequency of 2 MHz, a maximum load regulation of -1.5%, and a quiescent current of 15 uA. It functions within a temperature range of -40°C to +125°C and is housed in a QFN-38 package.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture utilizing PolyPhase technology for synchronized power delivery
• Controlled on-time valley current mode control for transient response without clock delay
• Independent channel drive capability for all N-channel power MOSFETs
• Constant frequency switching operation under steady load conditions

DC DC Switching Controllers Applications

• High-density point-of-load (POL) conversion systems
• Industrial distributed power architectures
• Telecommunications infrastructure power supplies
• Computing equipment requiring multi-rail voltage regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official documentation, as variations such as #TRPBF indicate tape-and-reel packaging while other suffixes may denote tube packaging or different temperature grades. Confirm RoHS compliance status through the manufacturer's latest datasheet. Ensure the ordering part number matches the exact thermal and electrical requirements for the target application environment.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring high current density and fast transient response from a wide input voltage range. The dual-channel design allows for interleaved operation to reduce input ripple and improve efficiency. Consider the QFN-38 package for its thermal performance and compact footprint in space-constrained PCB layouts compared to larger packages.

DC DC Switching Controllers Part Context

This controller belongs to the LTC3838-1 series, which features advanced PolyPhase technology. The series is designed for applications demanding high efficiency and precise voltage regulation. The IUHF designation typically indicates an industrial temperature grade and specific package variant within the broader product family.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing gate drivers and passive components if considering alternative controllers from the same manufacturer.