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NCP81610MNTXG
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Product Detailed Parameters
- Description：IC CTLR 8-PHASE 40QFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：PWM Signal
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：8
- Voltage - Supply (Vcc/Vdd)：2.8V ~ 20V
- Frequency - Switching：250kHz ~ 1.2MHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：I2C, PSI
- Control Features：Current Limit, Enable, Frequency Control, Power Good, Ramp, Soft Start, SPI
- Operating Temperature：-10°C ~ 100°C (TA)
- Mounting Type：Surface Mount
- Package / Case：40-VFQFN Exposed Pad
- Supplier Device Package：40-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The NCP81610MNTXG is an 8-phase synchronous buck controller optimized for next-generation computing and graphics processors. It supports up to 8 phases with a supply voltage range of 2.8 V to 20 V and a switching frequency from 250 kHz to 1.2 MHz. The device features a dual-edge PWM multiphase architecture, differential voltage and phase current sensing, and adaptive voltage positioning. It includes a Power Saving Interface (PSI) for dynamic phase shedding or fixed low phase count modes to ensure high efficiency under light-load conditions.
Feature Summary
- Compliant with NVIDIA OVR4i+ specifications for accurate power regulation in computing applications
- Integrates a Power Saving Interface (PSI) enabling automatic phase shedding or fixed low phase count operation for improved light-load efficiency
- Utilizes true differential current balancing sense amplifiers and current mode dual edge modulation for fast transient response and dynamic current balance
Applications
- GPU power delivery systems
- CPU power delivery systems
- Next-generation computing processor power management
Procurement Notes
Verify the specific suffix MNTXG against official onsemi documentation to confirm package type and tape/reel specifications. Confirm compliance status and RoHS details directly from the datasheet. Ensure the ordering information matches the exact part number variant required for your design, as suffixes may indicate packaging or temperature grade differences.
Selection Notes
Select this component when designing power stages for NVIDIA-compliant GPUs or CPUs requiring up to 8 phases. It is suitable for applications needing precise load line configuration and fast transient response via dual-edge PWM. Consider the 40-pin QFN package constraints and the 2.8 V to 20 V input voltage range during PCB layout and input capacitor selection.
Part Context
The NCP81610 belongs to the NCP816xx series of multi-phase buck controllers from onsemi. This family is designed specifically for high-current, low-voltage applications in data centers and workstations. The NCP81610 represents the 8-phase variant within this lineup, offering scalability and advanced control features compared to lower-phase counterparts.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult onsemi technical support or updated distributor catalogs for direct replacements or pin-compatible alternatives.
