LT8643SEV#TRPBF

Overview

The LT8643SEV#TRPBF is a synchronous step-down Silent Switcher®2 regulator from Analog Devices. It operates with an input voltage range of 3.4 V to 42 V and delivers up to 6 A of output current. The device features adjustable output voltage, a switching frequency range of 200 kHz to 3 MHz, and low quiescent current of 750 nA. It is housed in a 24-lead LQFN package and supports operation temperatures from -40°C to +125°C.

Feature Summary

• Integrates Silent Switcher 2 architecture for minimized radiated EMI without external filters
• Provides high-efficiency synchronous buck conversion with integrated power switches
• Supports wide input voltage ranges suitable for industrial and automotive bus systems

Applications

• Industrial point-of-load regulation
• Automotive electronics power distribution
• Telecommunications infrastructure power supplies

Procurement Notes

Verify the specific suffix against official documentation to confirm tape-and-reel packaging and lead-free status. Ensure compatibility with required thermal management solutions for the LQFN package. Cross-reference datasheet revisions to validate pinout and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring high current density and strict electromagnetic interference limits. The wide input voltage range accommodates various supply rails. Evaluate thermal performance requirements based on the expected load current and ambient operating conditions within the specified temperature range.

Part Context

This part belongs to the LT8643S family of Silent Switcher regulators. It shares architectural similarities with other devices in the series but is distinguished by its specific output current rating and package configuration. The family targets applications demanding compact footprints and robust power delivery in noisy environments.

Replacement Considerations

LT8643SEV#PBF