NCP81253BMNTBG

Overview

The NCP81253BMNTBG is a high-performance dual MOSFET gate driver designed for synchronous buck applications. It operates within a supply voltage range of 4.5 V to 5.5 V and features two non-inverting outputs for driving high-side and low-side MOSFETs. The device is housed in an 8-pin DFN EP package with dimensions of 2 mm x 2 mm. Key timing parameters include a maximum turn-on delay of 15 ns (high-side) and 8 ns (low-side), and a maximum turn-off delay of 18 ns (high-side) and 15 ns (low-side). Rise and fall times are specified at 16 ns and 11 ns, respectively.

Feature Summary

• Dual non-inverting outputs optimized for driving both high-side and low-side MOSFET gates in synchronous buck configurations.

Applications

• Synchronous buck converter circuits

Procurement Notes

Verify the specific suffix 'BMNTBG' against the manufacturer's current datasheet to confirm pinout and electrical specifications match your design requirements. Ensure compatibility with the 4.5 V to 5.5 V supply voltage range. Confirm that the 8-pin DFN EP package footprint aligns with your PCB layout constraints and thermal management strategy before finalizing procurement.

Selection Notes

Select this component when a compact solution for synchronous buck regulation is required. The small 2 mm x 2 mm package supports space-constrained designs. Verify that the input control signals are compatible with the non-inverting output configuration. Ensure the application environment stays within the specified operating temperature range for reliable performance.

Part Context

This part belongs to the NCP81253 series of MOSFET drivers from onsemi. It is specifically engineered for power management ICs where efficient switching of synchronous rectifiers is critical. The series focuses on providing precise gate drive timing in a minimal footprint, distinguishing it from general-purpose half-bridge drivers by its optimization for single-phase buck topologies.

Replacement Considerations

Check for direct substitutes such as the NCP81253MNTBG if available, ensuring package and electrical characteristics remain identical. Verify functional equivalence with other onsemi synchronous buck drivers like the NCP81074AMNTBG only after confirming pin-to-pin compatibility and parameter alignment through official documentation.

FAQ

What is the package type for the NCP81253BMNTBG?

It is packaged in an 8-pin DFN EP (Drain Field Effect Transistor Exposed Pad) with a 2 mm x 2 mm footprint.

Does the NCP81253BMNTBG have inverting or non-inverting outputs?

The device features two non-inverting outputs for driving the high-side and low-side MOSFETs.