LT1576CS8-5#TRPBF

Overview

The LT1576CS8-5#TRPBF is a step-down switching regulator manufactured by Analog Devices Inc., operating within the LT1576 series. It utilizes a buck topology to provide a fixed 5 V output with a maximum current capacity of 1.5 A. The device accepts an input voltage range from 5 V to 25 V and operates at a fixed switching frequency of 200 kHz. Designed for surface-mount installation in an SOIC-8 package, it supports a wide operating temperature range from -40°C to +125°C. Key electrical specifications include a quiescent supply current of 1.16 mA and a shutdown feature for power management.

Feature Summary

• Integrates a high-efficiency buck converter capable of delivering up to 1.5 A output current
• Features a fixed 200 kHz switching frequency to optimize external component size
• Includes a dedicated shutdown pin for active power control and energy conservation

Applications

• Battery-powered portable equipment requiring efficient voltage regulation
• Industrial systems utilizing 5 V logic levels derived from higher bus voltages
• Embedded controllers needing isolated or regulated power rails from unregulated sources

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the manufacturer is Analog Devices Inc. and check RoHS compliance status via official documentation. Ensure the part number matches the exact thermal grade and package dimensions required for your PCB layout 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. It is suitable for applications demanding moderate current loads up to 1.5 A with minimal external passive components. Consider the 200 kHz frequency for balancing efficiency against electromagnetic interference requirements in compact designs.

Part Context

This part belongs to the LT1576 family of high-efficiency step-down switching regulators. These devices are designed to replace linear regulators in applications where input-to-output voltage differentials cause excessive heat dissipation. The family offers robust performance across industrial temperature ranges with integrated protection features.

Replacement Considerations

LT1576IS8-5#PBF serves as a direct alternative offering identical electrical characteristics but packaged in a tube instead of a reel.