LT3507AHUHF#TRPBF

Overview

The LT3507AHUHF#TRPBF is a high-performance power management IC featuring three synchronous buck converters and one low-dropout linear regulator. It operates with an input voltage range of 4V to 36V and supports adjustable output voltages from 0.8V to 32.4V. The device provides up to 2.7A on the primary channel and 1.8A on auxiliary channels, with a switching frequency between 900kHz and 1.1MHz. Designed for automotive applications, it functions reliably within a temperature range of -40°C to 150°C and utilizes a 38-lead QFN package.

Feature Summary

• Integrates three current-mode buck regulators and one LDO for multi-rail power distribution
• Features integrated power sequencer with independent tracking and soft-start controls
• Supports ceramic output capacitors to minimize system component count and cost
• Includes comprehensive protection mechanisms such as thermal shutdown and overcurrent limiting

Applications

• Automotive electronic systems requiring robust multi-voltage regulation
• Industrial control units needing synchronized power sequencing
• Distributed power architectures in communication infrastructure
• Complex embedded systems utilizing multiple analog and digital supply rails

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm tape-and-reel packaging and automotive grade status. Ensure compatibility with required operating temperatures and pin configurations before integration. Cross-reference datasheet revisions to validate electrical parameters and application circuit recommendations.

Selection Notes

Select this component when designing systems requiring four distinct regulated outputs from a single wide-input source. It is suitable for applications demanding precise power sequencing and high efficiency across varying load conditions. Consider the thermal performance of the QFN package and ensure adequate PCB layout for heat dissipation during continuous operation.

Part Context

This part belongs to the LT3507 family of mixed-signal power management ICs designed for complex power distribution networks. The series combines switching regulators with linear capabilities to address diverse voltage requirements efficiently. It targets markets where space constraints and high reliability are critical design factors.

Replacement Considerations

LT3507AEUHF#TRPBF offers equivalent functionality in a different package format.