LT3995HMSE#PBF

Overview

The LT3995HMSE#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It features an integrated 60V, 3A power switch and operates at a fixed 2MHz switching frequency. The device provides a programmable output voltage range from 1.225V to 40V with a maximum output current of 3A. Key electrical specifications include a quiescent current of 2.7mA during operation and 2µA in shutdown mode. It supports input voltages from 3.8V to 60V and includes adjustable soft-start timing. The component is housed in a thermally enhanced 16-lead MSOP package.

Feature Summary

• Integrates a high-voltage 60V N-channel power switch capable of delivering up to 3A continuous load current.
• Utilizes a fixed 2MHz switching frequency architecture to minimize external passive component size while maintaining efficiency.
• Features a low-power shutdown mode that reduces quiescent current to 2µA for extended battery life applications.
• Includes programmable soft-start functionality to limit inrush current and regulate output voltage ramp-up.

Applications

• Industrial automation systems requiring isolated or non-isolated DC-DC conversion
• Distributed power architectures in telecommunications infrastructure
• Battery-powered equipment needing efficient step-down regulation
• Embedded control boards in automotive electronics

Procurement Notes

Verify the specific suffix #PBF indicates lead-free RoHS compliance when sourcing. Confirm the MSOP-16 package variant matches your PCB footprint requirements. Check manufacturer documentation for any recent design change notifications (PCN) affecting pinout or thermal characteristics. Ensure operating conditions remain within the specified 60V input and 3A output limits to maintain reliability.

Selection Notes

Select this component when a compact solution is needed for high-input voltage buck applications. The 2MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the thermal performance of the MSOP package for heat dissipation needs. Evaluate the soft-start time requirements against system startup constraints. Compare total solution size against competitors offering similar voltage and current ratings.

Part Context

This part belongs to the LT3995 family of synchronous buck regulators designed for high-voltage inputs. It shares architectural similarities with other Analog Devices power management ICs but is distinct in its 60V rating and 3A current capability. The HMSE designation refers to the specific temperature grade and package type within the broader product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.