What is the Additional Feature ?

Name: NCP81243MNTXG
Brand: ON Semiconductor
SKU: NCP81243MNTXG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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ON Semiconductor NCP81243MNTXG

Part No.:: NCP81243MNTXG

Manufacturer:: ON Semiconductor

Package:: 52-VFQFN Exposed Pad

Datasheet:: NCP81243MNTXG.pdf

Description:: IC REG CTRLR IMVP8 1OUT 52QFN

In Stock:: 3000

Quantity:: Add To Cart

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NCP81243MNTXG Typical application Circuitry

NCP81243MNTXG

The NCP81243MNTXG is a multi-phase PWM controller designed for precision voltage regulation in high-performance computing applications. This controller is specifically engineered to manage the power supply for CPUs, GPUs, and memory modules in computers and servers, where stable and efficient power delivery is critical for optimal performance and reliability.

Application Scenarios:

The NCP81243MNTXG is extensively used in desktop and laptop motherboards, servers, and gaming consoles where efficient power management and thermal performance are crucial. It is particularly beneficial in applications requiring multiple phases for power distribution to achieve smoother and more reliable voltage supply to high-demand components.

Parameter Features:

Key features of the NCP81243MNTXG include its support for multiple power phases, high precision in voltage regulation, adaptive voltage positioning (AVP), and integrated MOSFET drivers. This IC also boasts excellent transient response, reducing the likelihood of voltage dips or spikes under varying load conditions.Because of its customizable features, system design and optimization can be tailored to meet the needs of individual applications.

Example Application Circuit - CPU Power Supply in a Desktop Motherboard:

1. Power Input to the Controller (VIN): The primary power supply, typically 12V from a desktop's PSU (Power Supply Unit), is connected to the VIN pins of the NCP81243MNTXG. This input powers the internal circuitry and provides the source voltage for the CPU power phases.

2. Multi-Phase Outputs (PHASEx): Each PHASE pin controls an individual phase in the power supply circuit. For a high-performance CPU, a 6-phase design might be employed for optimal power delivery and thermal performance. The NCP81243MNTXG coordinates the operation of these phases to distribute the load evenly, enhancing efficiency and reducing heat buildup.

3. Feedback and Voltage Regulation (VFB): The VFB pin is critical for feedback control. It monitors the voltage level at the CPU and adjusts the PWM duty cycle to maintain the desired output voltage, ensuring precise regulation despite load changes.

4. Enable and Soft-Start (EN, SS): The controller can be turned on or off using the EN pin. The SS pin controls the soft-start function, which gradually ramps up the output voltage at startup, preventing inrush current and potential damage to the CPU.

5.Thermal Management Considerations: Given the high power levels managed by the NCP81243MNTXG, thermal management is a critical design consideration. Proper heat sinking and airflow around the controller and power stages help to maintain performance and reliability.

Design Points to Remember:

When creating with the NCP81243MNTXG, there are a few things to consider:

- Component Selection: Choosing the right inductors and capacitors for each phase is crucial for achieving efficient power conversion and minimizing ripple.

- PCB Layout: The layout of the PCB impacts the performance significantly. Short, wide traces for high-current paths and careful placement to minimize electromagnetic interference (EMI) are essential.

- Thermal Management: Adequate cooling for the controller and power stages is necessary to prevent thermal throttling or damage.

- Protection Features: Implementing over-current, over-voltage, under-voltage, and thermal protection circuits ensures the longevity and safety of the power supply system.

Incorporating the NCP81243MNTXG into a motherboard design involves careful planning and attention to detail to optimize the performance and reliability of the power supply system for high-demand computing applications. Its advanced features and programmability make it a versatile and powerful solution for managing power in sophisticated electronic systems.

NCP81243MNTXG information

NCP81243MNTXG Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
-
ProductStatus:
Active
Applications:
Controller, Intel IMVP8
Voltage-Input:
4.5V ~ 20V
NumberofOutputs:
1
Voltage-Output:
-
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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3. Are the NCP81243MNTXG price and inventory displayed accurate?

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6. What is the process for return or replacement of NCP81243MNTXG?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of NCP81243MNTXG.

(3)The PartNo is unused and only in the original unpacked packaging.

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