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3 A, 2 MHz Low-Iq Dual-Mode Step-Down Regulator for Automotive

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NCV891330PD50R2G General Description

The NCV891330 is a Dual Mode regulator intended for Automotive, battery-connected applications that must operate with up to a 45V input supply. Depending on the output load, it operates either as a PWM Buck Converter or as a Low Drop-Out Linear Regulator, and is suitable for systems with low noise and Low Quiescent Current requirements often encountered in automotive driver information systems. A reset pin (with fixed delay) simplifies interfacing with a microcontroller. The NCV891330 also provides several protection features expected in automotive power supply systems such as current limit, short circuit protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an all-ceramic output filter capacitor – forming a space-efficient switching regulator solution

ON Semiconductor, LLC Inventory

Key Features

  • 30 µA Iq in Light Load Condition
  • 3.0 A maximum output current in PWM mode
  • Internal N-channel Power Switch
  • VIN operating range 3.7 V to 36.5 V
  • Withstands Load Dump to 45 V
  • Logic level Enable pin can be tied to battery
  • Fixed Output Voltage of 5.0 V, 4.0 V or 3.3 V
  • 2 MHz Free-running Switching Frequency
  • NCV Prefix for Automotive Requiring Site and Control Changes
ON Semiconductor, LLC Original Stock


  • Radio
  • Infotainment
  • Instrument clusters
  • Telematics
  • Safety - Vision Systems
ON Semiconductor, LLC Inventory


Category Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators Mfr onsemi
Series Automotive, AEC-Q100 Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Active Function Step-Down
Output Configuration Positive Topology Buck
Output Type Fixed Number of Outputs 1
Voltage - Input (Min) 3.7V Voltage - Input (Max) 36V
Voltage - Output (Min/Fixed) 5V Voltage - Output (Max) -
Current - Output 3A Frequency - Switching 2MHz
Synchronous Rectifier No Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount Package / Case 8-SOIC (0.154", 3.90mm Width) Exposed Pad
Supplier Device Package 8-SOIC-EP


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

Ratings and Reviews

A**a Sep 30, 2019

Crumpled radiators, but blocks working

C**b Sep 23, 2019

Great set for low Price.

J**s Jun 27, 2019

Very long, not tracked

N**h Jan 29, 2019

Externally everything is ok, in the case did not check



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NCV891330PD50R2G Datasheet PDF

Preliminary Specification NCV891330PD50R2G PDF Download

NCV891330PD50R2G PDF Preview

Buying Guide

  • What is the lifespan of NCV891330PD50R2G?

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