NCP81272MNTXG 81272 onsemi 2-Phase Synchronous Buck Controller QFN-20 

Product Code: NCP81272MNTXG 

Part Marking: 81272 

Brand: onsemi (ON Semiconductor) 

Package Type: QFN-20 (4x4 mm) 

Datasheet: N/A 

Product Features 

The NCP81272MNTXG is an advanced synchronous buck controller IC designed by onsemi for notebooks, desktops, and high-performance computing systems. Fully compatible with the Open Voltage Regulator (Open VReg) architecture, this chip can dynamically adjust the output voltage via PWM VID (Voltage Identification) signals. Offering the flexibility to operate in 1-phase or 2-phase configurations depending on power requirements, it provides an optimized power management solution for modern processors and graphics units. Operating safely over a wide input voltage range from 4.5V to 24V, this device flawlessly manages transitions between Auto DCM (Discontinuous Conduction Mode) and FCCM (Forced Continuous Conduction Mode) to deliver maximum energy efficiency under both light load and full load conditions. While ensuring exceptional transient response through onsemi's high-precision control loop, it is fully equipped with comprehensive protection mechanisms such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown. It is a highly reliable switching controller IC frequently utilized in PCIe systems, auxiliary power rail circuits, and advanced DC-DC converter applications. 

• Type: 2-Phase Synchronous Buck Controller / Voltage Regulator 
• Input Voltage Range: 4.5V to 24V operating tolerance 
• Phase Configuration: Configurable as 1-phase or 2-phase (PWM VID compatible) 
• Control Architecture: Open VReg compatible structure, supporting FCCM and Auto DCM modes 
• Protection Features: Over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown 
• Package Type: QFN-20 
• Applications: Notebooks, desktop motherboards, PCIe hardware, and DC-DC power modules 

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.