LT1936EMS8E#TRPBF

Overview

The LT1936EMS8E#TRPBF is a synchronous step-down DC/DC converter manufactured by Analog Devices Inc. It features an adjustable output voltage range from 1.2V to 33.12V and delivers a maximum output current of 1.4A. The device operates with an input voltage range of 3.6V to 36V and utilizes a fixed switching frequency of 500kHz. It is housed in an 8-MSOP package with an exposed thermal pad (8-MSOP-EP) for surface mount installation. The component supports a junction temperature operating range of -40°C to 125°C.

Feature Summary

• Integrates high-side and low-side power switches for efficient synchronous rectification
• Provides constant frequency pulse-width modulation control for stable regulation
• Includes internal soft-start circuitry to limit inrush current during startup
• Features thermal shutdown protection to safeguard against overheating

Applications

• Point-of-load regulation in industrial equipment
• Power supply stages for embedded systems
• Battery-powered portable devices requiring efficient voltage conversion
• Automotive electronics applications

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the MSOP-8-EP package variant matches the target PCB footprint. Ensure the supplier provides official documentation to validate authenticity. Check RoHS compliance status if required for specific manufacturing standards. Validate the active part status before finalizing procurement plans.

Selection Notes

Select this component for designs requiring a compact solution with moderate current capabilities up to 1.4A. The 500kHz switching frequency allows for smaller external passive components compared to lower frequency alternatives. Consider the thermal performance of the exposed pad layout for heat dissipation. Evaluate the input voltage range compatibility with the system power source. Review the minimum output voltage constraint of 1.2V for load requirements.

Part Context

This part belongs to the LT1936 family of synchronous buck converters designed by Analog Devices. It shares the same core topology and pinout as variants like the LT1936IMS8E#TRPBF, differing primarily in packaging or lot traceability. The series is known for combining efficiency with ease of use in space-constrained applications. It serves as a direct replacement for older non-synchronous regulators in similar voltage ranges.

Replacement Considerations

LT1936IMS8E#TRPBF is a confirmed substitute within the same product family.