LT8390IFE#TRPBF

Overview

The LT8390IFE#TRPBF is a synchronous four-switch buck-boost DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4 V to 60 V and supports output voltages from 0 V to 60 V. The device features a switch frequency range of 600 kHz to 2 MHz and maintains a typical quiescent current of 2.1 mA. It utilizes a TSSOP-EP-28 package with exposed pad for surface mount installation. The component functions across an operating temperature range of -40°C to +125°C and includes integrated shutdown capabilities.

Feature Summary

• Synchronous four-switch topology enables regulation when input voltage is above, below, or equal to the output voltage
• Integrated spread spectrum modulation capability reduces electromagnetic interference emissions
• Supports clock synchronization for system-wide noise management

Applications

• Industrial power supplies requiring wide input voltage ranges
• Battery-powered systems where battery discharge curves cross target output levels
• Distributed power architectures in telecommunications equipment
• Automotive electronics subject to load dump and cold crank conditions

Procurement Notes

Verify the specific suffix 'TRPBF' indicates tape and reel packaging configuration distinct from tube variants. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the TSSOP-EP-28 thermal pad connection requirements are addressed in the PCB layout design to maintain specified thermal performance and electrical reliability standards.

Selection Notes

Select this component when application requirements demand continuous operation across input voltages that span both buck and boost regions relative to the fixed output rail. The high-frequency switching capability allows for reduced passive component size compared to lower-frequency alternatives. Evaluate thermal dissipation needs based on the exposed pad package type and maximum junction temperature limits defined in the datasheet specifications.

Part Context

This part belongs to the LT8390 family of synchronous buck-boost controllers designed for high-efficiency power conversion. The 'IFE' designation specifies the industrial temperature grade and TSSOP-28 package variant. The '#TRPBF' suffix denotes the specific reel packaging format intended for automated surface-mount assembly processes, distinguishing it from tube-packaged equivalents like the LT8390IFE#PBF.

Replacement Considerations

LT8390IFE#PBF offers identical electrical characteristics but utilizes tube packaging instead of tape and reel.