LT3430IFE-1#TRPBF

Overview

The LT3430IFE-1#TRPBF is a high-voltage step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 5.5 V to 60 V and delivers up to 3 A of output current. The device features a fixed 200 kHz switching frequency and supports adjustable output voltages from 1.219 V to 57.6 V. Packaged in a 16-TSSOP with exposed pad, it functions as a monolithic synchronous buck converter designed for efficient power management in demanding applications.

Feature Summary

• Supports wide input voltage ranges up to 60 V for flexible power supply integration
• Integrates internal power switches to minimize external component count
• Provides constant current regulation suitable for LED driving applications

Applications

• High-voltage LED lighting systems
• Industrial power distribution networks
• Automotive electronics requiring robust voltage regulation

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the -1 variant designation matches the required pinout or feature set against the official datasheet. Ensure compatibility with the 16-TSSOP footprint during PCB layout review. Cross-reference the manufacturer part number directly with Analog Devices documentation to avoid substitution errors.

Selection Notes

Select this component when a single-channel solution is required for high-input voltage environments. The 200 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Evaluate thermal performance requirements based on the TSSOP package and expected load currents. Consider the adjustable output range flexibility for various downstream logic or sensor supplies.

Part Context

This part belongs to the LT3430 family of high-voltage DC/DC converters. It serves as a compact solution for stepping down higher bus voltages to lower levels efficiently. The device integrates protection features typical of modern switching regulators. It is distinct from SEPIC variants like the LT3430EFE which support different topologies.

Replacement Considerations

LT3430IFE#TRPBF is listed as a parameter equivalent substitute.