LT3434IFE#TRPBF

Overview

The LT3434IFE#TRPBF is a high-voltage, monolithic synchronous buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range from 2.4 V to 60 V and delivers a maximum output current of 6.5 A. The device features an adjustable output voltage and integrates a 230 kHz fixed-frequency PWM controller. Packaged in a 16-pin TSSOP with exposed pad for thermal management, it supports shutdown functionality and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-voltage synchronous buck converter capable of handling up to 60 V input
• Provides high output current capability of 6.5 A for demanding power applications
• Features a fixed 230 kHz switching frequency to optimize external component size
• Includes integrated thermal pad for efficient heat dissipation in compact designs

Applications

• Industrial power supply systems requiring wide input voltage ranges
• Point-of-load regulation for digital signal processors and microcontrollers
• Automotive electronics operating under varying battery conditions
• Telecommunications infrastructure power distribution networks

Procurement Notes

Verify the exact suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm that the IFE variant meets the required industrial temperature specifications (-40°C to +125°C). Ensure compatibility with the 16-lead TSSOP footprint during PCB layout. Cross-reference the manufacturer's latest datasheet for any updates on recommended external components or application circuits.

Selection Notes

Select this component when a single-channel solution is needed for high-current applications with inputs up to 60 V. The fixed 230 kHz frequency balances efficiency and component size. Consider the thermal performance of the TSSOP package relative to the expected load current and ambient conditions. Verify that the adjustable output voltage range aligns with the target system requirements.

Part Context

This part belongs to the LT3434 family of high-voltage synchronous buck regulators. It shares architectural similarities with other LT34xx series devices but is distinguished by its specific 6.5 A current rating and 60 V input tolerance. The family targets applications requiring robust power conversion in space-constrained environments without sacrificing current delivery capabilities.

Replacement Considerations

Direct replacements may include other Analog Devices high-voltage buck regulators such as the LT3433 or LT3435 if current ratings differ. Verify pinout compatibility and thermal characteristics before substitution. Check for equivalent switching frequencies and input voltage ranges to ensure circuit stability.