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ONSEMI NCP81172MNTXG Power Regulator

The NCP81172 is a versatile two-phase synchronous buck controller with integrated gate drivers and PWM VID interface. Designed for power management in computing processors, it operates efficiently up to 800 kHz switching frequency, supports all-ceramic capacitor applications, and provides features like over-current, over-voltage, and thermal protections. Capable of high efficiency in light load conditions via diode emulation mode and supports dynamic power saving modes controlled by the processor's PSI signal. Its compact QFN-24 package makes it suitable for GPU, CPU, desktop, and notebook applications, ensuring reliable, high-performance power regulation.

Authorized Distributors
Source:Newark
Part No:NCP81172MNTXG
Stock:3096
Inv Date:06-10-2026
Price: Unit price: $1.19
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Source:DigiKey
Part No:NCP81172MNTXG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.55308
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Part No:NCP81172MNTXG
Stock:2076
Inv Date:06-11-2026
Price: Unit price: $1.2
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Part No:NCP81172MNTXG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1.0379
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Part No:NCP81172MNTXG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1.0379
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Part No:NCP81172MNTXG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.485
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ONSEMI NCP81172MNTXG Power Regulator Specifications:

  • Input Voltage Range: 4.5 V to 24 V
  • Output Voltage: Up to 2.0 V with PWM VID interface
  • Switching Frequency: 200 kHz to 800 kHz
  • Package: QFN-24, 4x4mm, 0.5 mm pitch
  • Integrated Gate Drivers: Yes
  • Features: Over-current, over-voltage, under-voltage, thermal shutdown, thermal alert, power good output
  • Thermal Shutdown Temperature: 150°C typical
  • Voltage Sense: Differential output voltage sense
  • Current Sense: Phase voltage monitoring
  • Protection: Programmable over current, over voltage, thermal shutdown
  • Supports all-ceramic capacitors, high efficiency in light-load conditions
  • Operational Modes: FCCM, DCM, and diode emulation mode
  • Applications: GPU and CPU power, graphics cards, desktops, notebooks

Buy the ON Semiconductor Series Power Controller: NCP81172

Enhance your power management system with the NCP81172 two-phase synchronous buck controller from ON Semiconductor. Featuring integrated gate drivers and a PWM VID interface, it supports high switching frequencies up to 800 kHz for smaller inductors and capacitors. Designed for CPU, GPU, and graphics card applications, it offers robust protections including over-current, over-voltage, thermal shutdown, and thermal alert. Its compact QFN-24 package ensures efficient thermal performance and reliable operation in demanding electronic systems, making it a perfect choice for high-performance computing devices.

Get ON Semiconductor NCP81172 today—built for precision and long-lasting durability in processor power management.

Frequently Asked Questions

Where can I buy ONSEMI NCP81172MNTXG?

You can click on the BUY or RFQ button to purchase NCP81172MNTXG from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part NCP81172MNTXG?

You can download the NCP81172MNTXG datasheet or visit the ONSEMI website for support.

Who is the manufacturer of NCP81172MNTXG?

ONSEMI

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