LT3437EDD#TRPBF

Overview

The LT3437EDD#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.3 V to 60 V and provides an adjustable output voltage. The device delivers up to 400 mA of output current at a fixed switching frequency of 200 kHz. It features a low operating supply current of 75 uA and a shutdown mode. The component is housed in a DFN-10 surface-mount package and supports operation within a temperature range of -40°C to +125°C.

Feature Summary

• Integrated high-voltage buck converter topology for step-down regulation
• Low quiescent current consumption for battery-powered applications
• Thermal performance optimized via exposed pad DFN packaging

Applications

• Industrial control systems requiring wide input voltage ranges
• Portable instrumentation powered by single-cell lithium batteries
• Embedded systems utilizing 48V or 24V bus architectures

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm tape-and-reel packaging configuration. Ensure compatibility with required thermal management solutions given the DFN-10 footprint. Cross-reference RoHS compliance status directly with the latest datasheet revision before finalizing procurement specifications.

Selection Notes

Select this component when a wide input voltage range up to 60 V is required alongside moderate output current capabilities. The fixed 200 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the thermal characteristics of the DFN-10 package for PCB layout optimization under maximum load conditions.

Part Context

This part belongs to the LT3437 series of high-voltage buck regulators from Analog Devices. It shares family characteristics such as internal compensation and protection features but differs in packaging and reel quantity from tube-packed variants like the LT3437EDD#PBF.

Replacement Considerations

LT3437EDD#PBF