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NB681GD - High Current Synchronous Buck Converter

Download the NB681GD datasheet PDF. This datasheet also covers the NB681 variant, as both devices belong to the same high current synchronous buck converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The NB681 is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter with 2-bit VID, especially designed for IMVP8 applications

VCCIO, PRIMCORE, V1.0A, EDRAM, and EOPIO.

Key Features

  • include OC limit, OVP, UVP, and thermal shutdown. The converter requires a minimal number of external components, and it is available in a QFN 2mm x 3 mm package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (NB681-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
NB681 High Current Synchronous Buck Converter
NB681A Synchronous Buck Converter
NB681AGD Synchronous Buck Converter
NB680 Synchronous Buck Converter
NB680A Synchronous Buck Converter

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
NB681 28V, 6A, Low Iq, High Current Synchronous Buck Converter with 2-Bit VID The Future of Analog IC Technology DESCRIPTION The NB681 is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter with 2-bit VID, especially designed for IMVP8 applications—VCCIO, PRIMCORE, V1.0A, EDRAM, and EOPIO. It offers a very compact solution to achieve a 6A continuous output current and a 7.5A peak output current over a wide input supply range. The NB681 operates at high efficiency over a wide output current load range based on MPS proprietary switching loss reduction technology and internal low Ron power MOSFETs. Adaptive constant-on-time (COT) control mode provides fast transient response and eases loop stabilization.