LT1776IS8#TRPBF

Overview

The LT1776IS8#TRPBF is a high-efficiency synchronous buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 7.4 V to 40 V and delivers up to 560 mA of output current. The device features an adjustable output voltage, a fixed switching frequency of 200 kHz, and supports shutdown functionality. It is housed in an 8-lead SOIC package and is rated for operation between -40°C and +125°C junction temperature.

Feature Summary

• Synchronous rectification architecture provides high efficiency across the load range
• Wide input voltage capability suitable for various bus voltage levels
• Integrated power switch eliminates external component requirements

Applications

• Point-of-load regulation for industrial systems
• Voltage conversion from higher bus voltages to lower logic levels
• Battery-powered equipment requiring efficient step-down conversion

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the supplier is an authorized distributor to guarantee part authenticity and traceability. Check for any recent product change notifications that may affect pinout or electrical specifications.

Selection Notes

Select this component when a compact solution is needed for stepping down voltages above 7.4 V. The synchronous design offers better efficiency than non-synchronous alternatives at moderate loads. Consider the 200 kHz switching frequency for balancing component size and noise. Verify thermal performance requirements given the SOIC-8 package constraints under maximum load conditions.

Part Context

This part belongs to the LT1776 family of high-efficiency buck regulators. It shares functional similarities with other Analog Devices synchronous controllers but integrates the power FETs internally. The IS8 variant denotes the industrial temperature range and SOIC-8 package configuration, distinguishing it from commercial or leaded versions within the same series.

Replacement Considerations

LT1776CN8#PBF is a documented alternative offering identical electrical characteristics in a PDIP-8 package.