LT3695HMSE#PBF

Overview

The LT3695HMSE#PBF is a micropower step-down switching regulator manufactured by Analog Devices Inc., housed in a 16-lead MSOP package. It operates with an input voltage range of 3.6 V to 36 V and delivers up to 1 A of output current. The adjustable output voltage spans from 800 mV to 20 V. Key electrical parameters include a quiescent current of 35 uA, a shutdown supply current of 75 uA, and a switch frequency range of 250 kHz to 2.2 MHz. The device supports operation across an extended temperature range from -40°C to +150°C.

Feature Summary

• Fault-tolerant architecture designed for robust performance in demanding environments
• Integrated synchronous power switches for high efficiency without external catch diodes
• Adjustable switching frequency allows optimization for size or transient response
• Micropower operation ensures minimal energy consumption during standby modes

Applications

• Portable battery-powered equipment requiring efficient power management
• Industrial systems operating under harsh environmental conditions
• Automotive electronics utilizing wide input voltage ranges
• Embedded control circuits needing low quiescent current operation

Procurement Notes

Verify the specific suffix PBF confirms lead-free compliance and RoHS standards before procurement. Confirm the MSOP-16 package variant matches your PCB footprint requirements. Ensure the supplier provides valid traceability documentation for automotive or industrial grade applications. Cross-reference the datasheet revision date to ensure compatibility with latest design guidelines.

Selection Notes

Select this component when input voltages exceed standard LDO capabilities while maintaining low static current needs. The fault-tolerant feature distinguishes it from standard buck regulators in unstable power environments. Consider the thermal performance within the MSOP-16 package for high-current loads. Validate that the required output voltage falls within the 800 mV to 20 V adjustable range.

Part Context

This part belongs to the LT3695 series of micropower step-down regulators. It shares architectural similarities with other high-voltage buck converters but emphasizes fault tolerance and low quiescent current. The MSOP-16 package offers a compact solution compared to larger QFN variants found in higher current families like the LT3690.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and thermal characteristics if considering alternative manufacturers' parts.