LT1376CS#TRPBF

Overview

The LT1376CS#TRPBF is a monolithic step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 5 V to 25 V and delivers a maximum output current of 1.5 A. The device features a fixed internal switching frequency of 500 kHz, enabling the use of small external components. It provides adjustable output voltage regulation within a single output configuration. The component supports shutdown functionality for power management and operates reliably across a temperature range from 0°C to +125°C. It is housed in an SOIC-8 surface-mount package.

Feature Summary

• Integrates a high-efficiency buck converter topology capable of delivering up to 1.5 A of continuous output current.
• Features a fixed 500 kHz switching frequency to minimize external passive component size while maintaining stable regulation.
• Includes a dedicated shutdown pin to reduce quiescent current consumption during standby modes.

Applications

• Point-of-load regulation for embedded systems requiring 5 V to 25 V input sources
• Battery-powered equipment utilizing step-down conversion for extended operational life
• Industrial control modules needing isolated or regulated low-voltage rails

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm that the CS grade meets the required commercial operating temperature range of 0°C to +125°C. Ensure compatibility with SOIC-8 footprint dimensions during PCB layout. Check for RoHS compliance documentation if environmental regulations apply to your manufacturing process.

Selection Notes

Select this component when a 1.5 A output current is necessary with an input voltage up to 25 V. The 500 kHz frequency offers a balance between efficiency and component size compared to lower-frequency alternatives. Consider the SOIC-8 package for space-constrained designs requiring surface-mount assembly. Evaluate thermal performance requirements given the power dissipation at higher load currents.

Part Context

This part belongs to the LT1376 series of monolithic step-down switching regulators. It shares functional similarities with other buck converters but is distinguished by its specific 1.5 A current capability and 500 kHz fixed frequency operation. The series is designed for applications requiring efficient voltage reduction from moderate input voltages to lower regulated outputs.

Replacement Considerations

LT1376CN8-5#PBF is a documented direct substitute offering identical electrical specifications in a PDIP package. Verify package compatibility and thermal characteristics when transitioning between surface-mount and through-hole variants.