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NB680 - Synchronous Buck Converter

General Description

The NB680 is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter with a fixed 3.3 V Vout.

Key Features

  • include OC limit, OVP, UVP, and thermal shutdown. NB680 requires a minimum number of external components and is available in a QFN 2mm x 3mm package.

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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.

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NB680 28V, Low Iq, High Current, Fixed 3.3V-8A Synchronous Buck Converter with 100 mA LDO DESCRIPTION The NB680 is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter with a fixed 3.3 V Vout. It offers a very compact solution to achieve an 8 A continuous output current and a 10 A peak output current over a wide input supply range with excellent load and line regulation. The NB680 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. The DC auto-tune loop provides good load and line regulation. NB680 provides a fixed 3.