Product Detail
The NB685 provides a complete power supply with the highest 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 NB685 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. The VTT LDO provides 1 A sink/source current capability and requires only 22 ? ceramic capacitors. The VTTREF tracks VDDQ/2 with excellent 1% accuracy. Full protection features include OC limit, OVP, UVP, thermal shutdown, and over-temperature warning (OTW). The converter requires a minimum number of external components, and it is available in a QFN 3mm x 3mm package.
NB685 Wide Vin 4.5-26V,12A,Low Iq, High Current Synchronous Buck Converter with +/-1A LDO and Bufferd Refference
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The NB685 provides a complete power supply with the highest density for DDR3, DDR3L, LPDDR3, and DDR4 memory.
NB685
New
NB685
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Monolithic Power Systems (MPS)
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