home products Semiconductors Power DC-DC Power Conversion NB685A Wide Vin 4.5-26V,12A,Low Iq, High Current Synchronous Buck Converter with +/-1A LDO and Buffe
NB685A Wide Vin 4.5-26V,12A,Low Iq, High Current Synchronous Buck Converter with +/-1A LDO and Bufferd Refference
NB685A

NB685A Wide Vin 4.5-26V,12A,Low Iq, High Current Synchronous Buck Converter with +/-1A LDO and Bufferd Refference

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

Product Detail

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. The VTT LDO provides 1 A sink/source current capability and requires only a 22 ? ceramic capacitor. The VTTREF tracks VDDQ/2 with excellent 1% accuracy. Full protection 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.

NB685A Wide Vin 4.5-26V,12A,Low Iq, High Current Synchronous Buck Converter with +/-1A LDO and Bufferd Refference
https://www.epsglobal.com/Media-Library/EPSGlobal/Products/files/mps/NB685A.jpg?ext=.jpg&maxsidesize=400
The NB685A provides a complete power supply with the highest power density for DDR3, DDR3L, LPDDR3, and DDR4 memory.
NB685A
New
NB685A
Monolithic Power Systems (MPS)
https://www.epsglobal.com/getmetafile/5919b031-ff1d-4f79-8c75-d15d466e323a

Pricing Table

Technical Specification

Vin (min) (V):
4.5
Vin (max) (V):
26
Iout (max) (A):
12
Grade:
Catalog
Type:
Switching Regulators
Iq (typ) (mA):
0.185
fsw (max) (kHz):
700
Special Features:
Programmable Frequency,Soft Stop,Ultrasonic Mode
Vfb (typ) (V):
0.6
Common Features:
Light-Load Efficiency,Power Good,Synchronous Rectification
Control Mode:
COT

Additional Documentation

Manufacturer

Monolithic Power Systems (MPS)

Monolithic Power Systems, Inc. (MPS) provides small, highly energy efficient, easy-to-use power solutions for systems found in industrial applications, telecom infrastructures, cloud computing, automotive, and consumer applications.

Learn about Monolithic Power Systems (MPS)

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