NCP81166HMNTBG

Overview

The NCP81166HMNTBG is a dual synchronous buck MOSFET gate driver from onsemi, designed for VR12.5 compatible applications. It integrates high-side and low-side drivers in an 8-DFN (2x2) surface-mount package. The device operates with a supply voltage range of 4.5 V to 13.2 V and supports non-inverting input logic. Key electrical characteristics include a rise time of 16 ns and a fall time of 11 ns. It functions within a temperature range of -10°C to +125°C and utilizes silicon technology.

Feature Summary

• Dual-channel architecture providing independent high-side and low-side gate drive capabilities for synchronous buck converters.
• Compliance with VR12.5 specifications ensures compatibility with modern processor voltage regulator requirements.
• Non-inverting input configuration simplifies interface integration with standard digital control signals.

Applications

• Synchronous buck converter stages in server and workstation power delivery systems
• Voltage regulation modules (VRMs) compliant with VR12.5 standards
• High-density point-of-load (POL) conversion circuits

Procurement Notes

Verify the specific suffix 'HMNTBG' against official onsemi documentation to confirm pinout and thermal pad configurations. Ensure the ordering part number matches the exact datasheet revision required for your design. Cross-reference the 8-DFN package dimensions with your PCB footprint library to guarantee mechanical compatibility before finalizing procurement.

Selection Notes

Select this component when designing VR12.5-compliant synchronous buck regulators requiring dual isolated gate drives. The 8-DFN package suits space-constrained layouts. Evaluate the 16 ns rise and 11 ns fall times against switching frequency requirements. Confirm that the 4.5 V minimum supply voltage aligns with your system's available rail voltages during operation.

Part Context

This device belongs to the NCP81166 series of synchronous buck MOSFET drivers. It is manufactured by onsemi under their professional power management portfolio. The component is distinct from similar variants like the NCP81166MNTBG primarily through its specific packaging and suffix designation, serving as a dedicated driver for high-performance voltage regulation applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify functional equivalence with other VR12.5 compatible drivers only after consulting the official onsemi replacement guide or engineering change notices.

FAQ

What is the input logic type for the NCP81166HMNTBG?

The device features a non-inverting input type, meaning the gate drive outputs follow the state of the input control signals directly.

What is the operating temperature range for this gate driver?

The NCP81166HMNTBG is rated for an ambient operating temperature range from -10°C to +125°C.