ACT4751MQI101-T

Overview

The ACT4751MQI101-T is a specialized PMIC and synchronous buck converter designed for automotive USB Type-C fast charging applications. It supports Power Delivery 3.0 Programmable Power Supply (PPS) specifications. The device operates with an input voltage range of 4.5 V to 40 V and delivers up to 4 A output current. Output voltage is adjustable from 3 V to 24 V. It features low quiescent current of 6 uA during operation and standby current of 235 uA. The component is qualified under AEC-Q100 standards, ensuring reliability in automotive environments. It functions within a temperature range of -40°C to +125°C and utilizes a QFN-32 surface-mount package.

Feature Summary

• Supports USB PD 3.0 PPS specifications for advanced fast charging protocols
• Automotive-grade qualification compliant with AEC-Q100 standards
• Integrated synchronous buck topology for high efficiency power conversion
• Wide input voltage capability suitable for vehicle electrical systems

Applications

• USB Type-C fast charging in vehicles
• Smartphone and tablet charging ports in automobiles
• Tablet and laptop charging interfaces in cars
• Advanced infotainment system power distribution

Procurement Notes

Verify the specific suffix 'M' indicates automotive grade qualification distinct from standard variants. Confirm the 'QI101' suffix aligns with required AEC-Q100 reliability standards for your target application. Ensure the QFN-32 package dimensions match your PCB footprint requirements. Check for the latest datasheet revisions to confirm pinout compatibility with existing designs.

Selection Notes

Select this component when designing automotive USB-C chargers requiring PPS support. It is suitable for systems needing wide input voltage tolerance typical of car batteries. Consider the 4 A current limit for high-power device charging needs. The integrated nature reduces external component count compared to discrete solutions. Evaluate thermal performance within the QFN-32 package for your enclosure constraints.

Part Context

This part belongs to the ACT4751 series of specialized power management ICs from Qorvo. It is derived from Active-Semi technology acquired by Qorvo. The series focuses on programmable analog power solutions for consumer and automotive markets. It complements other Qorvo PMICs like the ACT4752 and ACT88321 in broader power architecture designs.

Replacement Considerations

The ACT4752QI101-T is a related variant within the same family. Verify if functional differences between the M and non-M suffixes impact your specific automotive safety requirements. Cross-reference pinouts and control interfaces before substitution.