TPS43351QDAPRQ1

DC DC Switching Controllers Overview

The TPS43351QDAPRQ1 is an automotive-grade, low quiescent current dual synchronous buck controller designed for high-efficiency power conversion. It operates within a supply voltage range of 4V to 40V and supports switching frequencies from 150kHz to 600kHz. The device features two independent output channels with positive configuration, housed in a 38-HTSSOP package. It complies with AEC-Q100 Grade 1 standards, ensuring reliable operation across an ambient temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Dual synchronous buck topology for efficient multi-rail power distribution
• Low quiescent current architecture to minimize standby power consumption
• Adjustable switching frequency support for optimized component selection
• Integrated clock synchronization capability for noise reduction

DC DC Switching Controllers Applications

• Automotive infotainment systems requiring stable multi-voltage rails
• Digital cockpit modules needing synchronized power sequencing
• ADAS sensor processing units demanding high efficiency
• Vehicle gateway controllers utilizing dual buck regulation

DC DC Switching Controllers Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel quantity and moisture sensitivity level. Confirm that the HTSSOP-38 package variant aligns with your PCB footprint requirements. Ensure the AEC-Q100 qualification status meets your automotive reliability standards before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when dual isolated or non-isolated buck outputs are required from a single input source. Consider its low IQ profile for applications prioritizing battery life or thermal management. Evaluate the 150kHz to 600kHz frequency range against external inductor and capacitor constraints to achieve desired transient response and size targets.

DC DC Switching Controllers Part Context

This component belongs to the TPS4335x-Q1 family of dual synchronous buck controllers. It shares architectural similarities with the TPS43350-Q1 but offers specific parameter variations tailored for diverse automotive power train and body electronics applications. The series emphasizes low static current and robust synchronization features.

DC DC Switching Controllers Replacement Considerations

The TPS43350QDAPRQ1 serves as a direct functional substitute within the same product family. Both devices share identical pinouts and control architectures, facilitating drop-in replacements where parameter differences do not impact system performance.