LT1376IS8#TRPBF

Overview

The LT1376IS8#TRPBF is a monolithic step-down switching regulator manufactured by Analog Devices Inc. It operates within an input voltage range of 5 V to 25 V and delivers a continuous output current of 1.5 A. The device integrates a power switch and supports a fixed switching frequency of 500 kHz, enabling the use of small external inductors and capacitors. It features an adjustable output voltage starting from 1.245 V. The component includes a shutdown pin for low standby current consumption and is housed in an 8-lead SOIC package.

Feature Summary

• Integrates a high-efficiency power switch capable of delivering 1.5 A load current
• Supports fixed-frequency operation at 500 kHz for compact passive component sizing
• Includes a dedicated shutdown control pin to minimize quiescent current during standby

Applications

• Point-of-load regulation for microprocessors and DSPs
• Battery-powered equipment requiring efficient step-down conversion
• General-purpose DC/DC conversion in industrial systems

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm package type and temperature rating. Ensure compatibility with required PCB footprint dimensions for the SOIC-8 package. Cross-reference the datasheet revision date to validate electrical characteristics and pinout assignments prior to final design implementation.

Selection Notes

Select this component when a single-output buck converter is needed with moderate current requirements up to 1.5 A. It is suitable for designs where a fixed switching frequency simplifies EMI filtering compared to variable frequency controllers. Consider thermal management requirements based on the voltage differential between input and output voltages under full load conditions.

Part Context

This part belongs to the LT1376 series of high-performance switching regulators. It shares functional similarities with other members like the LT1375 but differs in topology capabilities. The IS8 designation indicates an industrial temperature range variant packaged in an 8-lead SOIC format, distinguishing it from commercial or wider temperature options.

Replacement Considerations

LT1376CS8#TRPBF is a confirmed substitute offering identical functionality in a commercial temperature grade.