The NB685 provides the highest density complete power supply for DDR3, DDR3L, LPDDR3, and DDR4 memory. It is a converter chip with high frequency, synchronous, rectification, step-down, and other characteristics. It is mainly used to repair the Antminer control board.

The NB685 operates highly efficiently over a wide output current load range based on MPS proprietary switching loss reduction technology and internal low Ron power MOSFETs.

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 is available in a QFN 3mm * 3mm package.

Product features:

1. Wide 4.5V to 28V operating input range

2. Compatible for IMVP8

3. 135μA low quiescent current

4. 12A continuous output current

5. 13A peak output current

6. Selectable ultrasonic mode

7. Selectable 500k/700k switching frequency

8. Built-In +/- 1A VTTLDO

9. 1% Buffered VTTREF output

10. Adaptive COT for fast transient

11. DC Auto-tune loop

12. Stable with POSCAP and ceramic output capacitors

13. Over-temperature warning

14. Internal soft start

15. Output discharge

16. OCL, OVP, UVP, and thermal shutdown

17. Latch-Off Re-set via EN or power cycle

18. QFN 3mm * 3mm package