NCV97200MW33R2G

Overview

The NCV97200MW33R2G is an automotive-grade switching controller manufactured by onsemi, designed for Buck topology applications. It features two independent outputs with fixed voltages of 3.3 V and 5 V, supporting a maximum output current of 400 mA per channel. The device operates within a supply voltage range of 4.1 V to 40 V and utilizes a switching frequency of 2 MHz. It offers a maximum duty cycle of 90% and includes a shutdown function. Qualified under AEC-Q101 standards, it functions reliably between -40°C and +150°C. The component is housed in a QFNW-20 package suitable for surface mount installation.

Feature Summary

• Dual-output architecture providing isolated 3.3 V and 5 V rails from a single input source
• Automotive qualification ensuring reliability under extreme thermal conditions up to 150°C
• High-frequency operation at 2 MHz enabling compact external passive component sizing

Applications

• Automotive battery-connected power distribution systems
• Multi-rail power management units for electronic control modules
• Non-isolated DC-DC conversion in vehicle infotainment or sensor networks

Procurement Notes

Verify the specific suffix 'MW33R2G' against the official datasheet to confirm the exact output voltage configuration and packaging type. Ensure that the AEC-Q101 qualification status aligns with your system's automotive reliability requirements. Cross-reference the QFNW-20 footprint dimensions during PCB layout to guarantee mechanical compatibility. Confirm that the 40 V maximum input rating accommodates all transient load dump scenarios present in your application environment.

Selection Notes

Select this component when a dual-rail solution is required without the complexity of multiple discrete controllers. The fixed 3.3 V and 5 V outputs simplify design compared to adjustable variants. Consider the 400 mA current limit to ensure it meets the peak load demands of downstream circuitry. The wide operating temperature range makes it suitable for harsh automotive environments where standard commercial parts would fail. Evaluate the 2 MHz frequency against EMI constraints in sensitive signal areas.

Part Context

This part belongs to the NCV97200 series of automotive switching controllers. It complements other variants like the NCV97200MW01R2G, which supports Boost and Buck topologies with higher current capabilities. While the NCV97311 series offers integrated LDOs, the NCV97200 focuses purely on synchronous buck regulation. This distinction allows designers to choose based on whether linear regulation or pure switching efficiency is prioritized for specific rails.

Replacement Considerations

NCV97200MW01R2G: Offers Boost/Buck topology and 3 A current but differs in output configuration.