LTC3639IMSE#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3639IMSE#TRPBF is a high-efficiency, synchronous step-down DC-to-DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 150V and delivers up to 100mA of load current. The device utilizes Burst Mode operation for optimized efficiency across broad load ranges and features programmable peak current limiting to reduce output ripple and component size. It is housed in a 16-lead MSOP package with an exposed pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates power switches and supports wide input voltage ranges suitable for diverse power sources
• Features Burst Mode operation combined with low quiescent current for high efficiency at light loads
• Includes programmable peak current limit to optimize performance and minimize external component requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Positive-to-negative regulation from high-voltage inputs
• Step-down conversion from industrial or automotive power buses
• Powering sensitive circuits requiring stable regulation from variable high-voltage sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm the IMSE variant meets the required operating temperature specifications for your application environment. Ensure compatibility with the 16-lead MSOP footprint during PCB layout planning. Cross-reference official datasheets for precise thermal and electrical limits before finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems that require regulating high input voltages down to lower levels with minimal external parts. The integrated synchronous rectification and wide input range make it suitable for space-constrained designs. Consider the 100mA output current limit when sizing the load requirements. Evaluate the need for programmable current limiting to tailor protection and efficiency characteristics.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3639 family of high-voltage synchronous buck converters. It shares core architecture with other variants like the HMSE and MPSE, differing primarily in temperature grades and packaging options. The series is designed for robust performance in industrial applications where wide input voltage tolerance is critical.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include LTC3639HMSE#TRPBF and LTC3639MPMSE#PBF. Verify pinout compatibility and thermal performance differences between temperature grades before swapping. Ensure the replacement part matches the required packaging format and operational specifications.