TL5001AQDG4

DC DC Switching Controllers Overview

The TL5001AQDG4 is an automotive-grade PWM switching controller from Texas Instruments, designed for high-frequency DC-DC conversion. It supports Buck, Boost, and Flyback topologies with a wide input voltage range of 3.6V to 40V. The device features a fixed 400MHz switching frequency, enabling compact passive component sizing. It provides a single output capable of driving external power stages up to 50V at 3A. Operating within a temperature range of -40°C to +125°C, it meets AEC-Q100 standards. Packaged in an 8-SOIC surface-mount format, it offers low quiescent current of 1.1mA for efficient power management.

DC DC Switching Controllers Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliable operation in vehicle environments.
• Fixed high-frequency switching architecture eliminates the need for external compensation networks.
• Wide input voltage capability accommodates various supply rails without additional regulation stages.

DC DC Switching Controllers Applications

• Automotive infotainment system power distribution
• Vehicle lighting control circuits
• On-board charger (OBC) auxiliary power supplies

DC DC Switching Controllers Procurement Notes

Verify that the specific part marking includes the 'AQ' suffix to confirm automotive grade status. Ensure the package variant matches the required SOIC-8 width specifications. Confirm RoHS compliance documentation aligns with regional regulatory requirements. Check for any specific tape-and-reel or tube packaging constraints during ordering.

DC DC Switching Controllers Selection Notes

Select this component when fixed-frequency operation simplifies loop compensation design. It is suitable for applications requiring strict electromagnetic interference management due to the constant switching rate. Consider the 400MHz frequency limit when optimizing transformer or inductor core selection for minimal size.

DC DC Switching Controllers Part Context

This device belongs to the TL5001A family of switching controllers. It shares functional similarities with the standard TL5001 but adds automotive reliability certifications. The AQDG4 designation indicates the specific automotive grade, DG4 package code, and lead-free finish.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the TL5001CDG4 for commercial grade applications where automotive certification is not required. For broader compatibility, the TL5001A series variants may be considered if environmental ratings differ.