Monolithic Power Systems NB679
The NB679 is a fully integrated, high-frequency, synchronous, rectified, step-down switch-mode converter with a fixed 5 V output. It offers a very compact solution to achieve 8 A continuous output current and 10 A peak output current over a wide input supply range with excellent load and line regulation. The NB679 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.| Part No. | NB679 |
|---|---|
| Datasheet | NB679 Download |
| Manufacturer |  Monolithic Power Systems |
| Description | Fixed 5V-8A Synchronous Buck Converter |
| Buy | Stock & Price |
DESCRIPTION
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. NB679 provides a fixed 5 V LDO, which can be used to power the external peripheries. Full protection features include OC limit, OVP, UVP, and thermal shutdown. The converter requires a minimum number of external components and is available in QFN 2mm x 3mm package.FEATURES
● Wide 5.5 V to 28 V Operating Input Range● Fixed 5 V Vout
● Supports 5.5 V-5 V
● Ultrasonic Mode with Fs over 25 kHz
● 100 μA Low Quiescent Current
● 8 A Continous Output Current
● 10 A Peak Output Current
● Adaptive COT for Fast Transient
● DC Auto-Tune Loop for Load Regulation
● Stable with POSCAP and Ceramic Output Capacitors
● Built-In 5 V, 100 mA LDO with Switch Over
● 1% Reference Voltage
● Internal Soft Start
● Output Discharge
● 700 kHZ Switching Frequency
● OCP, OVP, UVP, and Thermal Shutdown.
● Latch-Off Reset via EN or Power...
