LT1374IR-5#TRPBF

Overview

The LT1374IR-5#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 5 V to 25 V and provides a fixed output voltage of 5 V. The device supports an output current of 3.6 A and features a fixed switching frequency of 500 kHz. Key electrical parameters include a quiescent current of 20 uA and an operating supply current of 2.5 mA. It is housed in a DDPAK-7 surface-mount package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-current buck converter topology for efficient step-down voltage regulation.
• Includes a shutdown feature to minimize power consumption during inactive periods.
• Designed for stable operation across a wide industrial temperature range.

Applications

• Point-of-load regulation in telecommunications equipment
• Power supply stages for embedded computing systems
• Industrial control system voltage distribution

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the IR designation corresponds to the industrial temperature grade (-40°C to +125°C) required for your application environment. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure compatibility with your PCB footprint and thermal management strategy before finalizing procurement orders.

Selection Notes

Select this component when a fixed 5 V output is required from an input voltage between 5 V and 25 V. The 3.6 A output capability suits moderate load applications, while the 500 kHz frequency allows for compact passive component selection. Ensure the DDPAK-7 package fits the available board space and that the thermal design can handle the dissipation at maximum load currents within the specified operating temperature limits.

Part Context

This part belongs to the LT1374 series of monolithic buck switching regulators. The series is characterized by high efficiency and robust performance in step-down conversion applications. The LT1374 family offers various output voltage options and packaging configurations to accommodate diverse power management requirements in industrial and commercial electronics.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Direct replacements must match the 5 V fixed output, 3.6 A current rating, and DDPAK-7 package constraints. Verify pinout compatibility and thermal characteristics before integrating any substitute components into existing designs.