NCP3418BDR2G

Overview

The NCP3418BDR2G is a dual-output MOSFET driver designed for synchronous buck converters, manufactured by onsemi. It operates with a supply voltage range of 4.5 V to 20 V and delivers peak output currents of 2 A source and 4 A sink. The device features independent high-side and low-side outputs with propagation delays typically around 25 ns. It supports PWM frequencies up to 1 MHz and includes an active pull-down feature for the high-side output. Packaged in an SOIC-8 surface-mount case, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Dual-channel architecture providing independent control for synchronous buck converter high-side and low-side MOSFETs
• Integrated bootstrap diode eliminates external component requirements for high-side drive generation
• Active pull-down mechanism ensures rapid discharge of gate charge during off-states to prevent shoot-through

Applications

• Synchronous buck DC-DC converter circuits
• Point-of-load power regulation modules
• Server and workstation motherboard voltage regulator stages

Procurement Notes

Verify the specific suffix DR2G corresponds to the SOIC-8 tape-and-reel packaging configuration required for your assembly line. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure input signal levels match the specified logic thresholds to guarantee reliable switching performance under all operating conditions.

Selection Notes

Select this component when designing synchronous rectification stages requiring isolated or bootstrapped high-side driving capabilities. Evaluate thermal dissipation requirements based on switching frequency and load current. Compare against single-channel drivers if only one side of the bridge requires active control. Verify that the package footprint matches the PCB layout constraints for the SOIC-8 form factor.

Part Context

This part belongs to the NCP3418 family of analog mixed-signal ICs from onsemi. It serves as a specialized interface between low-voltage control logic and power MOSFET switches. The series focuses on efficiency improvements in DC-DC conversion by enabling synchronous rectification, replacing standard diodes with actively driven MOSFETs to reduce conduction losses.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official cross-reference lists for potential alternatives such as the NCP3418BMNR2G, noting that package differences may require layout modifications.