NB679GD ALTx MPS 5.1V 8A Synchronous Buck Converter QFN-12 

Product Code: NB679GD 

Part Marking: ALT* (The last letter is the year code and may vary) 

Brand: Monolithic Power Systems (MPS) 

Package Type: QFN-12 (2x3 mm) 

Datasheet: NB679 

Product Features 

The NB679GD is a fully integrated, high-frequency, synchronous step-down (buck) switch-mode converter designed by Monolithic Power Systems (MPS) with a fixed 5.1V output. It operates over a wide input supply range (5.5V to 28V) and delivers an 8A continuous and 10A peak output current in a very compact solution. It features a built-in 5V/100mA LDO that can be used to power external peripheries. The MPS proprietary Adaptive Constant-On-Time (COT) control architecture provides fast transient response and eases loop stabilization. It is equipped with Ultrasonic Mode for improved light-load efficiency and an LP# pin for low-power mode voltage scaling (down to 4.85V). Housed in a 12-pin QFN package, it includes comprehensive protection features such as OCP, OVP, UVP, and Thermal Shutdown. 

• Type: Synchronous Buck Converter (Step-Down) 
• Input Voltage Range: 5.5V to 28V 
• Output Voltage: Fixed 5.1V (4.85V when LP# is active) 
• Output Current: 8A continuous, 10A peak output current 
• Internal LDO: Built-in 5V/100mA LDO for external peripheries 
• Control Architecture: Adaptive Constant-On-Time (COT) control for fast transient response 
• Protections: OCP, OVP, UVP, and Thermal Shutdown 
• Package Type: QFN-12 (2x3 mm) 
• Applications: Laptop computers, tablet PCs, networking systems, flat panel TVs/monitors, and distributed power systems 

Sales Information 

Condition: BRAND NEW. Original. 

Warranty: No warranty is provided for semiconductor products. 

Shipping (Turkey): All orders placed before 16:30 on weekdays and 14:30 on Saturdays are shipped the same day via our contracted courier. (Excluding peak shipping periods, public holidays, and conditions that may prevent the courier company from operating) 

International Shipping: Orders placed before 16:30 on weekdays are shipped via Air Parcel on the same business day. Orders placed on weekends and outside working hours are shipped on the next business day. (Excluding peak periods) Country of origin: Turkey.