LT3695HMSE-5#TRPBF

Overview

The LT3695HMSE-5#TRPBF 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 output current. The device features adjustable switching frequencies from 250 kHz to 2.2 MHz and low quiescent current of 35 uA. It is housed in a 16-pin MSOP package and supports operation temperatures from -40°C to +150°C junction temperature.

Feature Summary

• Fault-tolerant design capable of withstanding short circuits on the output or feedback pins without damage.
• Micropower architecture ensures minimal energy consumption during standby modes.
• Flexible switching frequency allows optimization for efficiency or external component size.

Applications

• Battery-powered portable equipment requiring high efficiency
• Industrial control systems with wide input voltage ranges
• Automotive electronics operating under harsh thermal conditions

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the HMSE variant meets the required junction temperature rating of 150°C for your application environment. Ensure compatibility with the 16-lead MSOP footprint during PCB layout review.

Selection Notes

Select this part when a fixed 5 V output is required from a wide input range. Consider the fault tolerance feature if output shorts are possible. Compare quiescent current specifications against system sleep requirements. Verify that the 1 A current limit suffices for peak load demands.

Part Context

This component belongs to the LT3695 series of buck regulators designed for high reliability. It shares the core topology with variants like LT3695IMSE but differs in extended temperature ratings and specific package handling. The series emphasizes robustness in demanding environments.

Replacement Considerations

LT3695IMSE-5#TRPBF offers similar electrical characteristics but typically specifies a lower maximum junction temperature of 125°C compared to the 150°C rating of the HMSE version. Verify thermal management requirements before substitution.

FAQ

Is the LT3695HMSE-5#TRPBF a synchronous rectifier?

No, it uses a non-synchronous buck topology with an internal high-side switch and requires an external diode for the low-side path.

What is the maximum operating junction temperature?

The maximum operating junction temperature is +150°C, allowing for operation in high-temperature industrial applications.