NCP302155AMNTWG

Overview

The NCP302155AMNTWG is a high-side and low-side gate driver IC from onsemi, housed in a 31-PQFN (5x5) package. It integrates drivers for N-channel MOSFETs with peak output currents of 2A sink and 2.5A source. The device operates on a 4.5V to 5.5V supply voltage and supports non-inverting logic inputs with thresholds of 0.7V and 2.65V. Typical rise and fall times are 12ns and 6ns respectively, enabling operation up to 2 MHz. It features an internal bootstrap diode and thermal shutdown protection.

Feature Summary

• Integrates high-side and low-side gate drivers optimized for large current DC-DC buck power conversion applications.
• Reduces package parasitic effects and board space compared to discrete component solutions through integrated design.

Applications

• Desktop and notebook microprocessor V-Core and non-V-core DC-DC converters
• Large current DC-DC point-of-load converters
• Small voltage regulator modules

Procurement Notes

Verify the specific suffix AMNTWG against the manufacturer datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the 31-PQFN footprint aligns with PCB layout constraints. Confirm RoHS compliance status for environmental regulations. Check lead time availability as production cycles may vary. Validate that the integrated driver configuration suits the target MOSFET gate charge requirements.

Selection Notes

Select this component for applications requiring compact integration of high and low-side driving capabilities. The 31-PQFN package offers a small form factor suitable for space-constrained designs like server workstations and portable devices. Consider the 2.5A source current capability for driving larger MOSFETs efficiently. The internal bootstrap diode simplifies circuit design by eliminating external components typically required for high-side drive biasing.

Part Context

This part belongs to the NCP302155 series of integrated gate drivers designed for high-current DC-DC conversion. It combines driver logic with output stages in a single package to minimize parasitic inductance. The series targets modern power management needs in computing and industrial sectors where efficiency and size are critical. It serves as a complete solution for half-bridge or buck converter topologies requiring precise switching control.

Replacement Considerations

NCP302155HMNTWG is a confirmed substitute within the same product family offering similar integrated driver and MOSFET functionality.