LT8640SAAV#TRPBF

Overview

The LT8640SAAV#TRPBF is a synchronous step-down Silent Switcher regulator from Analog Devices. It supports an input voltage range of 3.4 V to 42 V and delivers up to 6 A of output current. The device features a programmable switching frequency between 200 kHz and 3 MHz. Quiescent current is specified at 1.7 uA during operation and 750 nA in shutdown mode. It operates within a temperature range of -40°C to +125°C and utilizes a 24-lead QFN package.

Feature Summary

• Integrates Silent Switcher architecture for minimized electromagnetic interference without external filters
• Supports wide input voltage range suitable for automotive and industrial bus systems
• Provides high efficiency through synchronous rectification and adjustable switching frequency

Applications

• Automotive infotainment and body control modules
• Industrial point-of-load regulation
• Telecommunications power distribution

Procurement Notes

Verify the specific suffix AA against official datasheets to confirm pinout and thermal pad configuration. Ensure compatibility with required operating temperatures and packaging formats before integration. Cross-reference manufacturer documentation for any recent design changes or obsolescence notices.

Selection Notes

Select this component when high current capability and low EMI are critical requirements. Compare quiescent current specifications against system standby needs. Evaluate thermal performance based on the QFN package's heat dissipation capabilities relative to the expected load conditions.

Part Context

This part belongs to the LT8640S family of Silent Switcher regulators. It shares architectural similarities with other variants in the series but differs in package type and specific electrical characteristics. The family is designed for applications requiring robust power management in noisy environments.

Replacement Considerations

LT8640SEV#PBF is listed as a parameter equivalent.