LTC3639IMSE#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3639IMSE#PBF is a high-efficiency, synchronous step-down DC-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 low quiescent current and features programmable peak current limiting to optimize efficiency and reduce output ripple. Packaged in a 16-lead MSOP with exposed pad, it supports both positive and negative output configurations.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous power switches for high efficiency across wide load ranges
• Features Burst Mode operation to minimize quiescent current consumption
• Includes programmable peak current limit for optimized performance and component size reduction

Voltage Regulators - DC DC Switching Regulators Applications

• Positive-to-negative regulator topologies
• Wide input voltage regulation from various power sources
• High-voltage step-down conversion requiring low standby current

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the IMSE variant meets industrial temperature requirements. Ensure the 16-lead MSOP package footprint matches the design layout. Cross-reference the manufacturer datasheet for exact electrical limits before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring robust regulation from high-voltage inputs up to 150V. It is suitable where space constraints favor integrated synchronous designs over discrete solutions. Consider the 100mA output capability against load demands. Evaluate the need for programmable current limiting to tailor 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 architectural similarities with other members like the LTC3639HMSE but differs in thermal and electrical ratings defined by the specific suffix. The IMSE designation typically denotes industrial grade performance within the MSOP package form factor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LTC3639 variants such as LTC3639HMSE#PBF or LTC3639MPMSE#PBF, provided pin compatibility and thermal performance meet the application requirements. Verify that alternative suffixes match the required operating temperature range and package type.