LT1765EFE#TRPBF

Overview

The LT1765EFE#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3 V to 25 V and provides a maximum output current of 3 A. The device integrates a 1.25 MHz fixed-frequency PWM controller, allowing for the use of small external components. It features a low quiescent current of 15 uA and supports adjustable output voltages from 1.2 V to 22.5 V via an external resistor divider. The component is housed in a 16-lead TSSOP package with an exposed pad for thermal dissipation.

Feature Summary

• Integrates a high-speed 1.25 MHz PWM controller to minimize passive component size
• Includes internal compensation and frequency compensation for stable operation
• Features cycle-by-cycle current limiting and thermal shutdown protection
• Supports low power consumption through a dedicated shutdown pin

Applications

• Point-of-load regulation for digital signal processors
• Battery-powered equipment requiring efficient step-down conversion
• Industrial control systems with wide input voltage ranges
• Communication infrastructure power distribution networks

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging rather than tube packaging when sourcing. Confirm RoHS compliance status directly with the manufacturer or authorized distributors as regulatory requirements may vary by region. Ensure the ordering information matches the exact electrical specifications required for the target application circuit design.

Selection Notes

Select this component for applications requiring high efficiency and compact board space due to the 1.25 MHz switching frequency. Consider the 3 A output capability and 25 V maximum input voltage for robust industrial designs. Evaluate thermal performance requirements based on the TSSOP-EP package and expected load conditions to determine necessary PCB copper area for heat dissipation.

Part Context

This part belongs to the LT1765 family of monolithic buck regulators designed for high-current, high-efficiency applications. It shares architectural similarities with other members of the series but differs in packaging and reel configuration. The device is categorized under PMIC switching voltage regulators within the Analog Devices portfolio.

Replacement Considerations

LT1765EFE#PBF: Identical electrical specifications and functionality; differs only in tube packaging instead of tape and reel.