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LT8643S - 6A Synchronous Step-Down Silent Switcher-2

Download the LT8643S datasheet PDF. This datasheet also covers the LT8640S variant, as both devices belong to the same 6a synchronous step-down silent switcher-2 family and are provided as variant models within a single manufacturer datasheet.

General Description

The LT®8640S/LT8643S synchronous step-down regulator

Key Features

  • n Silent Switcher ®2 Architecture n Ultralow EMI Emissions on Any PCB n Eliminates PCB Layout Sensitivity n Internal Bypass Capacitors Reduce Radiated EMI n Optional Spread Spectrum Modulation n High Efficiency at High Frequency n Up to 96% Efficiency at 1MHz, 12VIN to 5VOUT n Up to 95% Efficiency at 2MHz, 12VIN to 5VOUT n Wide Input Voltage Range: 3.4V to 42V n 6A Maximum Continuous, 7A Peak Output n Ultralow Quiescent Current Burst Mode® Operation n 2.5µA IQ Regulating 12VIN to 3.3VOUT (LT8640.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT8640S-LinearTechnology.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by Analog Devices

Part Number Description
LT8643S 6A Synchronous Step-Down Silent Switcher
LT8640 5A Synchronous Step-Down Silent Switcher
LT8640-1 5A Synchronous Step-Down Silent Switcher
LT8640A 5A/8A Peak Synchronous Step-Down Silent Switcher
LT8640S 6A Synchronous Step-Down Silent Switcher

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LT8640S/LT8643S 42V, 6A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current FEATURES n Silent Switcher ®2 Architecture n Ultralow EMI Emissions on Any PCB n Eliminates PCB Layout Sensitivity n Internal Bypass Capacitors Reduce Radiated EMI n Optional Spread Spectrum Modulation n High Efficiency at High Frequency n Up to 96% Efficiency at 1MHz, 12VIN to 5VOUT n Up to 95% Efficiency at 2MHz, 12VIN to 5VOUT n Wide Input Voltage Range: 3.4V to 42V n 6A Maximum Continuous, 7A Peak Output n Ultralow Quiescent Current Burst Mode® Operation n 2.5µA IQ Regulating 12VIN to 3.