In numerous low-voltage, high-current switching scenarios such as load switches, power management modules, battery protection circuits, and portable device DC-DC converters, ROHM's RQ6E045TNTR, with its low on-resistance and compact TSMT6 package, has been a popular choice for space-constrained designs. However, navigating the complexities of global component procurement—extended lead times, logistical uncertainties, and cost volatility—remains a persistent challenge. This underscores a critical industry shift towards domestic alternatives, not merely for contingency, but for achieving greater supply chain resilience, cost predictability, and design autonomy.
Addressing this need, VBsemi leverages its advanced semiconductor expertise to introduce the VB7322 N-channel MOSFET. This device serves as a high-performance, pin-to-pin compatible domestic alternative to the RQ6E045TNTR. It delivers crucial parameter enhancements while guaranteeing seamless integration into existing designs, offering a superior, reliable, and locally supported solution for your power switching applications.
Superior Electrical Performance, Unmatched Current Handling
Engineered as the optimal upgrade path, the VB7322 surpasses the RQ6E045TNTR in key specifications, providing robust performance headroom:
Enhanced Current Capacity: The continuous drain current (Id) is rated at 6A, a significant 33% increase over the original 4.5A. This allows for handling higher load currents with greater margin, improving system reliability and enabling power density upgrades.
Lower Conduction Losses: The VB7322 features a remarkably low on-resistance (RDS(on)) of just 26mΩ measured at a 10V gate drive (Vgs). This value is superior to the benchmark, ensuring minimized conduction losses, higher efficiency, and reduced thermal stress in operation.
Comprehensive Drive Compatibility: With a gate threshold voltage (Vth) of 1.7V and a gate-source voltage (Vgs) range of ±20V, the device ensures robust turn-on/off characteristics and strong immunity against gate noise, interfacing seamlessly with modern logic-level and standard driver ICs.
Advanced Trench Technology for Reliability
The VB7322 utilizes an advanced Trench MOSFET process technology. This architecture is the foundation for its low RDS(on) and excellent switching performance. The device incorporates an integrated G-S protection diode, safeguarding against electrostatic discharge (ESD) and voltage transients that can occur in real-world applications. This built-in protection enhances overall system robustness and long-term field reliability.
Perfect Package Compatibility for Risk-Free Replacement
The VB7322 is housed in a standard SOT23-6 surface-mount package, which is mechanically and electrically identical to the TSMT6 package of the RQ6E045TNTR. This complete footprint and pinout compatibility enables a true "drop-in" replacement. Engineering teams can directly substitute the component on existing PCB layouts without any redesign, revalidation of thermal management, or mechanical adjustments. This eliminates associated NRE costs, accelerates time-to-market, and de-risks the qualification process for production.
Local Supply Chain Assurance and Expert Support
Choosing VB7322 means transitioning from global uncertainty to local certainty. VBsemi's integrated domestic manufacturing ensures stable, scalable production and shorter, more predictable lead times, shielding your projects from international logistics disruptions. Coupled with this supply chain security is responsive, local technical support. VBsemi provides comprehensive documentation, including detailed cross-reference data and application notes, backed by a technical team ready to assist with integration and optimization, ensuring a smooth and successful transition.
From load switches and battery-powered devices to motor drive circuits and various power management functions, the VB7322 stands out as the intelligent choice for replacing the RQ6E045TNTR. It combines higher performance, complete design compatibility, guaranteed supply, and local expertise into a single package. Adopting the VB7322 is more than a component swap—it's a strategic step towards design optimization, supply chain simplification, and enhanced product competitiveness.