LT1767EMS8-5

Overview

The LT1767EMS8-5 is a monolithic buck switching regulator manufactured by Analog Devices. It integrates a high-efficiency 1.5A switch and control circuitry for a 1.25MHz current mode switching regulator. The device supports an input voltage range of 3V to 25V and provides a fixed 5V output. It operates within a temperature range of -40°C to +125°C with a quiescent current of 6µA.

Feature Summary

• Integrates a high-efficiency 1.5A power switch on the die
• Utilizes current mode control for fast transient response
• Supports both Buck and SEPIC topologies

Applications

• Powering TMS320DM642 DSP processors
• Dual output SEPIC converter designs
• General DC-DC step-down conversion

Procurement Notes

Verify the specific suffix (e.g., #TRPBF vs #PBF) against the manufacturer's datasheet to confirm packaging type, as these indicate different shipping formats. Confirm RoHS compliance status directly from the official documentation before procurement. Ensure the fixed 5V output variant matches the design requirement.

Selection Notes

Select this component when a fixed 5V output is required from a wide input range up to 25V. The integrated 1.5A switch suits moderate load applications. Consider the 1.25MHz frequency for balancing efficiency and external component size. Verify thermal performance in the MSOP-8 package for the intended operating environment.

Part Context

This part belongs to the LT1767 family of monolithic buck switching regulators. The series is characterized by high-frequency operation and integrated power switches. Variants within the family differ primarily by fixed output voltage settings and packaging options, sharing the same core control architecture and switch capabilities.

Replacement Considerations

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