NCP3420DR2G

Overview

The NCP3420DR2G is a single-phase MOSFET gate driver designed for synchronous buck converters. It integrates high-side and low-side drivers capable of driving a 3000 pF load with a 30 ns propagation delay and 20 ns transition time. The device operates within a supply voltage range of 4.6 V to 13.2 V, supporting optimized gate drive voltages for efficiency. It features an internal adaptive non-overlap circuit to prevent simultaneous conduction. The floating top driver accommodates VBST voltages up to 35 V and transient voltages up to 40 V. It is housed in an SOIC-8 surface-mount package.

Feature Summary

• Integrates adaptive non-overlap circuitry to prevent simultaneous conduction of high-side and low-side MOSFETs, reducing switching losses.
• Floating top driver design supports high VBST voltages up to 35 V and handles transient voltages as high as 40 V.
• Provides independent control of gate outputs via an Output Disable pin that drives both outputs low when activated.

Applications

• Synchronous buck converter power stages
• Single-phase DC-DC conversion systems
• Power management modules requiring isolated gate drive

Procurement Notes

Verify the specific suffix DR2G corresponds to the SOIC-8 reel packaging configuration required for your assembly line. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the operating temperature range of 0°C to +85°C aligns with your system's thermal environment specifications.

Selection Notes

Select this component when designing synchronous buck converters requiring integrated high-side and low-side drive capabilities. It is suitable for applications needing adaptive dead-time control to minimize shoot-through currents. Consider its 4.6 V to 13.2 V supply range and 35 V VBST capability for standard 12 V logic interfaces.

Part Context

This part belongs to the NCP3420 series of MOSFET gate drivers from onsemi. It is specifically engineered for single-phase applications, distinguishing it from half-bridge or multi-phase driver families. The device focuses on optimizing efficiency in synchronous rectification scenarios through integrated timing controls.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing electrical parameters and pin configurations against alternative drivers before implementation.