供应DC/DC转换器芯片NB679GD-Z。

供应DC/DC转换器芯片NB679GD-Z：

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
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

商品介绍

Supply voltage. VIN supplies power for the internal MOSFET and regulator. The NB679 operates from a 5.5 V to 24 V input rail. An input capacitor is needed to decouple the input rail. Use wide PCB traces and multiple vias to make the connection. Apply at least two layers for this input trace
VOUT is used to sense the output voltage of the buck regulator. Connect VOUT to the output capacitor of the regulator directly. Also, VOUT acts as the input of the internal LDO switch over power input. Keep the VOUT sensing trace far away from the SW node. Avoid vias on the VOUT sensing trace. A >25 mil trace is required.
NB679GD-Z

NB679GD-Z

NB679GD-Z

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