NB685A Datasheet PDF - MPS Synchronous Buck Converter Specs

NB685A - Synchronous Buck Converter

Datasheet Summary

Description

The NB685A provides a complete power supply with the highest power density for DDR3, DDR3L, LPDDR3, and DDR4 memory.

It integrates a high-frequency, synchronous, rectified, step-down, switch-mode converter (VDDQ) with a 1 A sink/source LDO (VTT) and buffered low noise reference (VTTREF).

Features

include OC limit, OVP, UVP, over-temperature warning (OTW), and thermal shutdown. The converter requires a minimum number of external components and is available in a QFN 3mm x 3mm package.

Datasheet Details

Part number	NB685A
Manufacturer	MPS
File Size	1.51 MB
Description	Synchronous Buck Converter
Datasheet	NB685A Datasheet
Additional preview pages of the NB685A datasheet.

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Full PDF Text Transcription

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NB685A 28 V, 12 A, Low Iq, High Current Synchronous Buck Converter with +/- 1 A LDO and Buffered Reference DESCRIPTION The NB685A provides a complete power supply with the highest power density for DDR3, DDR3L, LPDDR3, and DDR4 memory. It integrates a high-frequency, synchronous, rectified, step-down, switch-mode converter (VDDQ) with a 1 A sink/source LDO (VTT) and buffered low noise reference (VTTREF). The NB685A 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.

Published: Jan 25, 2021 |