LT3507EUHF#TRPBF

Voltage Regulators - Linear + Switching Overview

The LT3507EUHF#TRPBF is a triple current-mode DC/DC converter with an integrated low dropout regulator, manufactured by Analog Devices Inc. It operates within an input voltage range of 4V to 36V and features a switching frequency between 900kHz and 1.1MHz. The device provides four outputs: three adjustable buck converters delivering up to 2.7A, 1.8A, and 1.8A respectively, and one LDO output. It is housed in a 38-lead QFN package (5x7mm) and supports operation temperatures from -40°C to +125°C.

Voltage Regulators - Linear + Switching Feature Summary

• Integrates three step-down switching regulators and one low dropout linear regulator for multi-rail power distribution
• Utilizes current mode control architecture with internal power switches to minimize external component count
• Supports flexible sequencing capabilities for complex power-up and power-down sequences

Voltage Regulators - Linear + Switching Applications

• Industrial equipment requiring multiple regulated voltage rails
• Automotive electronics systems
• Telecommunications infrastructure power supplies

Voltage Regulators - Linear + Switching Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when placing orders. Confirm that the EUHF designation corresponds to the 38-lead QFN package variant. Ensure compatibility with the intended thermal management solution given the exposed pad requirement. Cross-reference the manufacturer's latest datasheet for any updates on pinout or electrical characteristics before finalizing the design.

Voltage Regulators - Linear + Switching Selection Notes

Select this component when a compact solution is needed for generating three distinct buck voltages alongside a single LDO rail. The wide input voltage range suits applications with varying supply conditions. Consider the thermal performance of the QFN package relative to the total load current. Verify that the required output voltages fall within the adjustable ranges specified in the official documentation.

Voltage Regulators - Linear + Switching Part Context

This part belongs to the LT3507 family of mixed-signal power management ICs designed for high-density applications. It combines switching regulation efficiency with LDO noise performance in a single footprint. The series is commonly used in scenarios where board space is limited but multiple power domains are required.

Voltage Regulators - Linear + Switching Replacement Considerations

LT3507AHUHF#PBF is a documented alternative offering similar functionality in a leaded QFN package.