LT3507AIFE#TRPBF

Overview

The LT3507AIFE#TRPBF is a power management IC featuring three synchronous buck converters and one low-dropout linear regulator. It operates from a 4V to 36V input supply with adjustable outputs ranging from 0.8V to 32.4V for the switching regulators. The device provides up to 2.7A on the primary output and 1.8A on secondary outputs, supporting a switching frequency between 900kHz and 1.1MHz. Packaged in a 38-pin TSSOP-EP, it includes internal sequencing control and functions within an operating temperature range of -40°C to 125°C.

Feature Summary

• Integrates three high-efficiency synchronous step-down converters alongside a single LDO channel for comprehensive multi-rail power distribution.
• Features internal sequencing logic to manage startup and shutdown transitions across multiple voltage rails without external timing components.
• Supports wide input voltage ranges suitable for industrial and automotive applications requiring robust power regulation under varying line conditions.

Applications

• Industrial automation systems requiring multiple regulated voltage rails
• Automotive electronics demanding wide input voltage tolerance
• Embedded computing platforms needing synchronized power sequencing

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing. Confirm the FE suffix corresponds to the 38-TSSOP-EP package variant. Ensure compatibility with your board layout regarding the exposed pad thermal requirements. Cross-reference the datasheet revision date to confirm pinout consistency before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring four distinct regulated outputs from a single wide-input source. The integrated sequencing simplifies design complexity compared to discrete solutions. Consider the thermal performance of the TSSOP-EP package relative to your expected load currents and ambient temperatures to ensure reliable operation within the specified junction temperature limits.

Part Context

This part belongs to the LT3507A family of quad-output power management ICs designed by Analog Devices. It shares core architecture with variants like LT3507AEFE#TRPBF but differs in package type and potentially temperature grade specifications. The series targets applications needing compact, multi-rail power solutions with integrated control features.

Replacement Considerations

LT3507AEFE#TRPBF offers identical electrical functionality in a different package configuration. LT3507AHFE#TRPBF provides similar performance with extended temperature rating options. Verify pin-to-pin compatibility and thermal characteristics before substituting these alternatives in existing designs.