NCV898031D1R2G

Overview

The NCV898031D1R2G is a non-synchronous SEPIC/Boost controller manufactured by onsemi. It operates at a fixed switching frequency of 2 MHz and is designed for automotive applications, holding AEC-Q100 qualification. The device supports input voltage ranges suitable for boost and SEPIC topologies, featuring integrated protection mechanisms such as over-current protection and thermal shutdown to ensure reliable operation in demanding environments.

Feature Summary

• Supports both SEPIC and Boost converter topologies for flexible power stage design
• Fixed 2 MHz switching frequency enables the use of compact external components
• Automotive grade construction with AEC-Q100 qualification for reliability
• Includes built-in over-current and thermal protection features

Applications

• Automotive lighting systems requiring high efficiency
• Battery-powered automotive modules needing voltage step-up
• SEPIC applications where input voltage may exceed or drop below output requirements
• Industrial control units with wide input voltage variations

Procurement Notes

Verify the specific revision level (Rev. 14) against your design requirements, as datasheet updates may occur. Confirm that the SOIC-8 package matches your PCB footprint constraints. Ensure that the non-synchronous nature aligns with your efficiency targets, as synchronous alternatives exist for lower loss applications. Check for any recent product discontinuance notifications or PCN announcements from onsemi regarding this part number before finalizing procurement plans.

Selection Notes

Select this component when a robust, automotive-grade solution for boosting or SEPIC conversion is required without the complexity of synchronous rectification. The 2 MHz frequency allows for smaller inductors and capacitors compared to lower-frequency controllers. Consider the trade-off between efficiency and component count, as non-synchronous designs are simpler but less efficient than synchronous counterparts at high currents.

Part Context

This controller belongs to onsemi's automotive power management portfolio, specifically targeting applications requiring reliable voltage regulation in harsh environments. It complements other buck and boost regulators in the NCV89 series, offering a specialized solution for topologies where input voltage fluctuations are significant or where polarity inversion is not desired.

Replacement Considerations

The NCV898032 is a related non-synchronous boost controller within the same family. Verify if the specific pinout and feature set of the NCV898032 meet your design needs as a potential substitute, ensuring compatibility with existing PCB layouts and control loops.