NB670GQ-P

Overview

The NB670GQ-P is a synchronous step-down converter from Monolithic Power Systems, packaged in a QFN-16. It accepts an input voltage range of 5 V to 22 V and provides a fixed 3.3 V output at up to 6 A. The device operates with a switching frequency of 500 kHz and features a typical quiescent current of 220 uA. It includes an integrated LDO for secondary regulation and supports shutdown functionality. The component functions within a temperature range of -40 C to +125 C.

Feature Summary

• Integrates a high-current synchronous buck converter with an auxiliary low-dropout regulator
• Utilizes constant on-time control architecture for fast transient response
• Includes comprehensive protection mechanisms against overcurrent and thermal overload

Applications

• Industrial equipment power distribution
• Telecommunications infrastructure systems
• Embedded computing modules

Procurement Notes

Verify the specific suffix designation during acquisition, as variations such as Z or P may indicate differences in environmental compliance or packaging configuration. Confirm availability status directly with authorized distributors, as supply constraints may affect immediate procurement. Ensure the selected variant matches the required RoHS standards and package marking for your manufacturing process.

Selection Notes

Select this component when a stable 3.3 V rail is required alongside a secondary regulated voltage source within a compact footprint. The integrated LDO simplifies design by reducing external component count compared to discrete solutions. Evaluate the 500 kHz switching frequency against electromagnetic interference requirements and inductor size constraints for the target application layout.

Part Context

This part belongs to the NB670 series of power management integrated circuits designed for high-efficiency voltage conversion. It shares the QFN-16 package form factor with other devices in the family, facilitating board space optimization. The series targets applications requiring robust performance under varying load conditions while maintaining low standby power consumption.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.