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NCP81231MNTXG The On Semiconductor NCP81231MNTXG is a high-resolution buck controller designed for applications requiring dynamically controlled slew rate limited output voltage. It supports USB PD and features a wide input voltage range.
Mfr Part #:

NCP81231MNTXG

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor NCP81231MNTXG is a high-resolution buck controller designed for applications requiring dynamically controlled slew rate limited output voltage. It supports USB PD and features a wide input voltage range.
✓ Total Stock: 12,284 pcs
$ Price Range: $0.78

NCP81231MNTXG Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
9,591 pcs
On Request
9591 pcs On Request 1 On Request On Request On Request On Request On Request
Rayichip ✓
Non-Authorised Inventory information
1,434 pcs
On Request
1434 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,259 pcs
On Request
1259 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

NCP81231MNTXG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Serial Interfaces
Supplier Device Package
Supplier Package
Synchronous Rectifier
Tape & Reel
Topology
Voltage
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NCP81231MNTXG Description

Short technical summary and product information.

The NCP81231MNTXG from On Semiconductor is a synchronous buck controller optimized for converting battery or adapter voltage into power supply rails for various consumer devices, including notebooks, tablets, and desktops. It is fully compliant with the USB Power Delivery Specification when used with a compatible interface controller.

 

This controller operates with a wide input voltage range from 4.5 V to 28 V and offers a dynamically programmable frequency from 150 kHz to 1.2 MHz. Key features include an I2C interface, real-time power good indication, controlled slew rate voltage transitioning, and high-resolution DAC voltage. It also supports inductor DCR sensing, has two independent current sensing inputs, and includes over-temperature protection.

 

The NCP81231MNTXG is designed for 100% duty cycle operation and features latched over-voltage and over-current protection, along with dead battery power support. It comes in a 5 x 5 mm QFN32 package, suitable for surface mount applications.

 

Typical applications include notebooks, tablets, desktops, gaming devices, monitors, TVs, set-top boxes, consumer electronics, car chargers, docking stations, and power banks.

NCP81231MNTXG Quick Information

Product Type: DC DC Switching Controller
Canonical Name: NCP81231 High Resolution Buck Controller with Full USB PD Features and 100% Duty Operation
Subcategory: DC DC Switching Controllers

NCP81231MNTXG Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

NCP81231MNTXG Estimated Pricing

Qty Low High
1+ $0.78 $0.78

Estimated market price range - modelled values for guidance only, not live distributor offers.

NCP81231MNTXG Features

  • Wide input voltage range from 4.5V to 28V.
  • Dynamically programmed frequency from 150kHz to 1.2MHz.
  • Fully compliant to USB Power Delivery Specification.
  • 100% duty cycle operation.
  • 5x5mm QFN32 package for surface mounting.

NCP81231MNTXG Applications

  • Suitable for notebook and tablet power supplies.
  • Used in consumer electronics and car chargers.
  • Ideal for docking stations and power banks.
  • Supports desktop and gaming device power rails.

NCP81231MNTXG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the NCP81231MNTXG?

4.5V to 28V.

What is the operating temperature range?

-40°C to 100°C.

What package is the NCP81231MNTXG available in?

32-VFQFN Exposed Pad (32-QFN 5x5mm).

Is the NCP81231MNTXG compliant with USB Power Delivery?

Yes, it is fully compliant to the USB Power Delivery Specification.

Does it have an I²C interface?

Yes, it includes an I²C serial interface.

What is the switching frequency range?

150kHz to 1.2MHz.

What protection features are included?

Over-temperature protection, latched over-voltage and over-current protection, and dead battery power support.

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