NB685 (AKU*)
₱300.00 ₱450.00
FEATURES
- Wide 4.5V to 28V Operating Input Range
- Compatible for IMVP8
- 135μA Low Quiescent Current
- 12A Continuous Output Current
- 13A Peak Output Current
- Selectable Ultrasonic Mode
- Selectable 500k/700k Switching Frequency
- Built-In +/- 1A VTTLDO
- 1% Buffered VTTREF Output
- Adaptive COT for Fast Transient
- DC Auto-Tune Loop
- Stable with POSCAP and Ceramic Output
Capacitors
- Over-Temperature Warning
- Internal Soft Start
- Output Discharge
- OCL, OVP, UVP, and Thermal Shutdown
- Latch-Off Re-Set via EN or Power Cycle
- QFN 3mm x 3mm Package
APPLICATIONS
- Laptop Computer
- Networking Systems
- Server
- Distributed Power Systems
DESCRIPTION
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, stepdown, switch-mode converter (VDDQ) with a1A 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 1A sink/source current capability and requires only 22μF 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 is available in a QFN 3mm x 3mm package.
Keywords:
NB 685 AKU