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NB681AGD - Synchronous Buck Converter

Download the NB681AGD datasheet PDF. This datasheet also covers the NB681A variant, as both devices belong to the same synchronous buck converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The NB681A is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with 2-bit VID, especially designed for IMVP8 applications

VCCIO, PRIMCORE, V1.0A, EDRAM, EOPIO, and other POLs (1.8V/2.5V/3.3V).

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-13 2mm x 3mm package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (NB681A-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
NB681A Synchronous Buck Converter
NB681 High Current Synchronous Buck Converter
NB681GD High Current 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
NB681A 28V, 6.5A, Low Iq, Synchronous Buck Converter with 2-Bit VID DESCRIPTION The NB681A is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with 2-bit VID, especially designed for IMVP8 applications—VCCIO, PRIMCORE, V1.0A, EDRAM, EOPIO, and other POLs (1.8V/2.5V/3.3V). It offers a very compact solution to achieve a 6.5A continuous output current and a 7.5A peak output current over a wide input supply range. The NB681A 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.