LT1507IS8#TRPBF

Overview

The LT1507IS8#TRPBF is a monolithic step-down switching regulator manufactured by Analog Devices Inc. It operates in a fixed mono buck mode with a switching frequency of 500 kHz. The device accepts an input voltage range from 4 V to 15 V and provides an adjustable output voltage. It supports a maximum output current of 1.5 A through a single output channel. The component features a shutdown function and operates within a temperature range of -40°C to +85°C. It is housed in an SOIC-8 surface-mount package.

Feature Summary

• Monolithic buck topology for efficient step-down conversion
• Integrated high-current switch capable of 1.5 A output
• Fixed 500 kHz switching frequency reduces external component size
• Shutdown pin enables power management control

Applications

• Battery-powered portable equipment
• Industrial control systems
• Communication infrastructure power supplies

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the industrial temperature grade (I) matches environmental requirements. Check current availability status as supply may be limited or subject to factory order constraints. Ensure compatibility with existing PCB footprints for the SOIC-8 package.

Selection Notes

Select this component for designs requiring a non-synchronous buck converter with moderate current demands. The fixed 500 kHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the lack of synchronous rectification when evaluating efficiency requirements at light loads versus the simplicity of the external component count.

Part Context

This part belongs to the LT1507 series of switching regulators. It shares the core buck architecture with variants such as LT1507CS8, differing primarily in temperature rating and packaging format. The IS8 designation specifies the industrial temperature range and SOIC-8 package type.

Replacement Considerations

LT1507CS8#TRPBF offers commercial temperature range alternative.