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VR12.5 Buck MOSFET Driver

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NCP81145MNTBG General Description

The NCP81145 is a high performance dual MOSFET gate driver optimized to drive the gates of both high-side and low-side power MOSFETs in a synchronous buck converter. It can drive up to 3nF load with a 25ns propagation delay and 20ns transition time.Adaptive anti-cross-conduction and power saving operation circuit can provide a low switching loss and high efficiency solution for notebook systems.The UVLO function guarantees the outputs are low when the supply voltage is low.

ON Semiconductor, LLC Inventory

Key Features

  • Faster rise and fall times
  • Adaptive anti-cross-conduction circuit
  • Zero cross detection function
  • Output disable control turns off both MOSFETs
  • Undervoltage lockout
  • Power saving operation under light load conditions
ON Semiconductor, LLC Original Stock


  • Industrial based power applications
ON Semiconductor, LLC Inventory


Category Integrated Circuits (ICs)Power Management (PMIC)Gate Drivers Mfr onsemi
Series - Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Active Digi-Key Programmable Not Verified
Driven Configuration Half-Bridge Channel Type Synchronous
Number of Drivers 2 Gate Type N-Channel MOSFET
Voltage - Supply 4.5V ~ 5.5V Logic Voltage - VIL, VIH 0.6V, 3.3V
Current - Peak Output (Source, Sink) - Input Type Non-Inverting
High Side Voltage - Max (Bootstrap) 35 V Rise / Fall Time (Typ) 16ns, 11ns
Operating Temperature -40°C ~ 150°C (TJ) Mounting Type Surface Mount
Package / Case 8-VFDFN Exposed Pad Supplier Device Package 8-DFN (2x2)
Base Product Number NCP81145


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

  • DHL

  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


  • Tape and Reel

    Tape and Reel

  • Cut Tape

    Cut Tape

  • Tube or Tray

    Tube or Tray


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Buying Guide

  • What is the lifespan of NCP81145MNTBG?

    The lifespan of NCP81145MNTBG depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of NCP81145MNTBG?

    You can find it with PDF Datasheet for NCP81145MNTBG on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of NCP81145MNTBG?

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  • Can I purchase samples for testing?

    Avaq offers free samples for customers to test. This can often help you determine whether the chip or component meets your needs.

  • Where can I check the delivery after the order is completed?

    Once the order is completed, you will receive an order confirmation email containing a tracking number from AVAQ, then you can track the delivery by yourself.

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