LT3695HMSE-5#PBF

Overview

The LT3695HMSE-5#PBF is a micropower step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6 V to 36 V and provides a fixed output voltage of 5 V at up to 1 A. The device features a quiescent current of 35 uA and supports adjustable switching frequencies from 250 kHz to 2.2 MHz. It is housed in a 16-lead MSOP package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Fault-tolerant design capable of withstanding load dump conditions
• Micropower operation with low quiescent current consumption
• Adjustable switching frequency for optimization of external component size
• Integrated synchronous rectification for high efficiency

Applications

• Automotive electronics requiring robust power regulation
• Industrial control systems with noisy power environments
• Battery-powered equipment needing extended runtime
• Telecommunications infrastructure power supplies

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout compatibility and thermal characteristics. Ensure the procurement channel provides valid traceability for automotive-grade components. Cross-reference the manufacturer part number with the latest datasheet revision to avoid discrepancies in electrical specifications or packaging details during integration.

Selection Notes

Select this component when a fixed 5 V output is required from a wide input voltage range. The fault-tolerant feature makes it suitable for harsh electrical environments. Compare the 1 A output capability against system load requirements. Consider the MSOP-16 package constraints for PCB layout and thermal management solutions relative to alternative adjustable variants in the series.

Part Context

This part belongs to the LT3695 family of buck regulators designed for demanding applications. It shares architectural similarities with other members like the LT3695IMSE-5#PBF but differs in operating temperature grade. The HMSE designation indicates a higher temperature range compared to standard industrial grades, aligning with automotive reliability standards.

Replacement Considerations

LT3695IMSE-5#PBF offers similar electrical performance but with a lower maximum operating temperature. LT3695EMSE-5#PBF provides comparable functionality within the industrial temperature range. Verify thermal dissipation requirements when substituting with these variants to ensure system reliability under identical load conditions.