LT3514EFE#TRPBF

Overview

The LT3514EFE#TRPBF is a triple step-down switching regulator manufactured by Analog Devices Inc. It features a wide input voltage range of 3.2V to 36V and supports adjustable output voltages starting from a minimum of 0.8V, with a maximum output capability of 36V. The device provides three independent outputs with current ratings of 2A and 1A. It operates at a switching frequency between 270kHz and 2.1MHz and includes shutdown functionality. The component is housed in a 24-TSSOP package with an exposed pad, designed for surface mount installation.

Feature Summary

• Triple step-down topology enabling simultaneous generation of multiple regulated voltage rails from a single input source
• 100% duty cycle operation allows the output voltage to track the input voltage down to near-zero differential, minimizing dropout losses
• Wide operating input voltage range accommodates various power supply sources without requiring intermediate regulation stages

Applications

• Portable devices requiring multiple internal voltage rails from a single battery source
• Industrial control systems needing isolated or separate logic and analog power supplies
• Embedded systems utilizing microcontrollers with distinct core and I/O voltage requirements

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the exact pinout and thermal pad requirements against the official datasheet before PCB layout finalization. Ensure the supplier provides genuine Analog Devices components to guarantee performance specifications are met under all operating conditions.

Selection Notes

Select this component when a design requires three independent buck converters within a compact footprint. It is suitable for applications where input voltages vary significantly but require stable, adjustable outputs. Consider the thermal dissipation capabilities of the 24-TSSOP package relative to the expected load currents and ambient temperature constraints.

Part Context

This part belongs to the LT3514 series of triple step-down regulators. It shares functional similarities with other multi-output PMICs but distinguishes itself through its high input voltage tolerance and 100% duty cycle capability. The series is designed for efficiency in space-constrained portable and industrial electronics.

Replacement Considerations

LT3514IFE#PBF is a verified equivalent offering identical electrical characteristics in tube packaging instead of tape and reel.