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NCP81611MNTXG The ON Semiconductor NCP81611MNTXG is a 4-phase synchronous buck controller designed for computing and graphics processors. It operates within a 2.8 V to 20 V supply voltage range.
Mfr Part #:

NCP81611MNTXG

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor NCP81611MNTXG is a 4-phase synchronous buck controller designed for computing and graphics processors. It operates within a 2.8 V to 20 V supply voltage range.
✓ Total Stock: 6,348 pcs
$ Price Range: $0.78

NCP81611MNTXG Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
Non-Authorised Inventory information
5,348 pcs
On Request
5348 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 pcs On Request 1 On Request On Request On Request On Request On Request
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NCP81611MNTXG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Serial Interfaces
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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NCP81611MNTXG Description

Short technical summary and product information.

The ON Semiconductor NCP81611MNTXG is a multiphase synchronous buck controller optimized for next-generation computing and graphics processors. This device supports up to 4 phases and features differential voltage and phase current sensing, adaptive voltage positioning, and a PWM_VID interface for accurate power regulation.

 

Key electrical specifications include a supply voltage range of 2.8 V to 20 V and a switching frequency of 250 kHz to 1.2 MHz when operating with 4 phases. The controller incorporates features such as Power Good output, Under Voltage Protection (UVP), Over Voltage Protection (OVP), System Over Current Protection (OCP), and Per Phase Over Current Limiting (OCL).

 

Designed for efficiency, it includes a Power Saving Interface (PSI) that allows for dynamic phase shedding to achieve high efficiency under light-load conditions. The dual-edge PWM multiphase architecture ensures fast transient response and good dynamic current balance. It supports PWM_VID and I2C control interfaces.

 

The NCP81611MNTXG is housed in a compact 40-pin QFN package with a 5 x 5 mm body and 0.4 mm pitch, suitable for surface mounting. Typical applications include GPU and CPU power, graphic cards, desktop and notebook applications, docking stations, and power banks.

NCP81611MNTXG Quick Information

Product Type: Switching Controller
Canonical Name: NCP81611 Multi-Phase Buck Controller
Subcategory: Switching Controllers

NCP81611MNTXG Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-Free

NCP81611MNTXG Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

NCP81611MNTXG Features

  • Supports up to 4 phases.
  • Operates from 2.8 V to 20 V supply.
  • Switching frequency from 250 kHz to 1.2 MHz.
  • Features I2C and PWM_VID control interfaces.
  • Packaged in a 40-pin QFN (5x5 mm).

NCP81611MNTXG Applications

  • Ideal for CPU and GPU power.
  • Suitable for graphic cards.
  • Used in desktop and notebook applications.
  • Applicable for docking stations.
  • Designed for power banks.

NCP81611MNTXG FAQs

6 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the NCP81611MNTXG?

The supply voltage range is 2.8 V to 20 V.

What is the switching frequency of the NCP81611MNTXG?

The switching frequency is 250 kHz to 1.2 MHz for 4 phases.

What is the operating temperature range?

The operating temperature range is -10°C to 100°C (TA).

What package type is the NCP81611MNTXG available in?

The NCP81611MNTXG is available in a 40-QFN (5x5) package.

Is the NCP81611MNTXG RoHS compliant?

Yes, the NCP81611MNTXG is RoHS3 Compliant.

What serial interfaces does the NCP81611MNTXG support?

The NCP81611MNTXG supports I²C and PSI serial interfaces.

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