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NCP81278DMNTXG
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Product Detailed Parameters
- Description：IC SYNC BUCK CTLR 4PHASE 20QFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Applications：Controller, CPU GPU
- Voltage - Input：3.6V ~ 24V
- Number of Outputs：1
- Voltage - Output：Up to 2V
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-QFN (3x3)
- Grade：-
- Qualification：-
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Overview
The NCP81278DMNTXG is a two-phase synchronous buck controller manufactured by onsemi, designed for CPU and GPU voltage regulation. It operates within an input voltage range of 3.6V to 24V and supports output voltages up to 2V. The device features a programmable switching frequency between 200 kHz and 800 kHz. It utilizes a 20-QFN (3x3 mm) package with exposed pad for surface mount installation. The component functions across an extended temperature range from -40°C to +100°C.
Feature Summary
- Supports two-phase synchronous buck topology for efficient power conversion
- Features open-drain output configuration for flexible driver interfacing
- Includes shutdown capability for system power management
Applications
- CPU core voltage regulation
- GPU power supply design
- General-purpose DC-DC step-down conversion
Procurement Notes
Verify current availability status as the NCP81278DMNTXG is listed as obsolete or end-of-life in multiple distributor records. Confirm if the manufacturer has issued a formal production discontinuation notice. Check for valid replacement part numbers such as the NCP81278TMNTXG before finalizing procurement plans to ensure long-term supply stability.
Selection Notes
Select this component when a two-phase synchronous buck solution is required for low-voltage, high-current applications like processors. Ensure the design accommodates the 20-QFN thermal requirements. Verify that the operating temperature range meets the specific environmental constraints of the target application board.
Part Context
This part belongs to the NCP81278 series of specialized power management ICs. It is categorized under DC-DC switching controllers and PMICs. The device is specifically engineered for digital power control in computing platforms, offering a compact footprint suitable for dense PCB layouts in modern electronic devices.
Replacement Considerations
The NCP81278TMNTXG is identified as a similar available substitute. Verify pin compatibility and electrical specifications before substitution.
