LT1766EFE-5#PBF

Overview

The LT1766EFE-5#PBF is a monolithic buck switching voltage regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 5.5 V to 60 V and provides a fixed 5 V output at up to 1.5 A. The device features a 200 kHz switching frequency and includes a shutdown pin for power management. It is housed in a 16-TSSOP package with exposed pad, suitable for surface mount applications across a temperature range of 0°C to +125°C.

Feature Summary

• Monolithic Buck topology designed for high-voltage step-down conversion
• Integrated 1.5 A switch capability within a compact TSSOP-16 package
• Fixed 5 V output voltage option for standard logic supply rails
• Shutdown control feature enables low quiescent current operation

Applications

• High-voltage point-of-load regulation
• Industrial control system power supplies
• Automotive electronics power distribution
• Battery-powered equipment step-down conversion

Procurement Notes

Verify the specific suffix #PBF indicates lead-free tin-silver-copper plating compliant with RoHS standards. Confirm the TSSOP-16 package dimensions match your PCB footprint requirements. Ensure the 5.5 V minimum input voltage aligns with your source supply characteristics. Check for any regional distribution restrictions or limited availability status before finalizing procurement plans.

Selection Notes

Select this component when a fixed 5 V output is required from inputs up to 60 V. Consider the 200 kHz frequency for balancing efficiency and external component size. Evaluate thermal performance given the 1.5 A continuous current rating in the specified package. Compare against adjustable variants if flexible output voltages are needed instead of the fixed 5 V configuration.

Part Context

This part belongs to the LT1766 series of high-voltage step-down regulators. It shares the same core architecture as other LT1766 variants but differs in output configuration. Unlike adjustable versions, this specific model provides a fixed 5 V rail, simplifying design for applications requiring standard logic levels without external feedback resistor networks.

Replacement Considerations

LT1766IFE-5#PBF offers identical electrical specifications and functionality. Verify that the package marking and pinout remain consistent during substitution. Ensure thermal dissipation characteristics match the original design constraints.