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NCP81103MNTXG
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Product Detailed Parameters
- Description：IC REG BUCK CTLR 36QFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：-
- Function：-
- Output Configuration：-
- Topology：-
- Number of Outputs：-
- Output Phases：-
- Voltage - Supply (Vcc/Vdd)：-
- Frequency - Switching：-
- Duty Cycle (Max)：-
- Synchronous Rectifier：-
- Clock Sync：-
- Serial Interfaces：-
- Control Features：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：36-VFQFN Exposed Pad
- Supplier Device Package：36-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The NCP81103MNTXG is a synchronous buck controller designed for high-performance computing applications. It integrates dual high-side and low-side drivers with an internal bootstrap diode, supporting input voltages up to 5.5V. The device features a wide output voltage range from 0.6V to 2.0V with ±1% initial accuracy. It supports up to four phases in parallel operation via daisy-chained enable pins and includes comprehensive protection mechanisms such as over-current, over-voltage, under-voltage lockout, and thermal shutdown.
Feature Summary
- Integrated dual high-side and low-side gate drivers with internal bootstrap diodes
- Supports multi-phase parallel operation through daisy-chained enable inputs
- Includes comprehensive protection features like over-current and thermal shutdown
Applications
- Central Processing Unit (CPU) core voltage regulation
- Graphics Processing Unit (GPU) power delivery
- High-density point-of-load conversion modules
Procurement Notes
Verify the specific suffix 'MNTXG' against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprint and thermal management requirements before procurement. Cross-reference the ordering part number with official onsemi documentation to avoid substitution errors due to minor suffix variations.
Selection Notes
Select this component when designing multi-phase VRMs requiring tight voltage regulation and fast transient response. Consider its integrated driver capability if minimizing external BOM count is critical. Evaluate the maximum phase count supported by your control loop stability requirements. Verify that the input voltage range aligns with your system's power rail availability.
Part Context
This controller belongs to onsemi's NCP81xxx series of synchronous buck controllers. It is engineered for demanding digital load applications where efficiency and dynamic performance are paramount. The series typically offers scalable phase counts and robust protection features suitable for modern processor power architectures.
Replacement Considerations
Consult onsemi's official cross-reference tools or distributor databases for verified pin-compatible alternatives. Ensure any substitute maintains identical driver configuration and protection thresholds. Do not assume functional equivalence based solely on package similarity without verifying electrical parameters.
