LM5022QDGSTQ1

DC DC Switching Controllers Overview

The LM5022QDGSTQ1 is a 60V low-side N-channel MOSFET controller designed for boost and SEPIC regulators. It operates with a switching frequency of 2.2MHz and supports a maximum duty cycle of 95%. The device functions within an operating temperature range of -40°C to 125°C (TJ). Key electrical characteristics include clock synchronization capability and positive output configuration. It integrates an error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, and soft-start functionality.

DC DC Switching Controllers Feature Summary

• Integrated error amplifier and precision reference for accurate regulation
• Cycle-by-cycle current limit and slope compensation for stable operation
• Line undervoltage lockout and soft-start for reliable startup protection

DC DC Switching Controllers Applications

• Boost regulator circuits
• SEPIC regulator designs
• Flyback converter applications

DC DC Switching Controllers Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct package type and automotive qualification status. Confirm that the specific variant matches the required thermal performance and pinout configuration for the target PCB layout. Cross-reference datasheet revisions to ensure compatibility with existing design specifications.

DC DC Switching Controllers Selection Notes

Select this component when designing high-voltage step-up or SEPIC topologies requiring integrated low-side control. Ensure the application voltage does not exceed the 60V rating. Consider the 2.2MHz switching frequency for inductor size trade-offs. Verify that the synchronous rectifier requirement is not needed, as this is a non-synchronous controller.

DC DC Switching Controllers Part Context

This part belongs to the LM5022-Q1 family of automotive-grade power management ICs. It is categorized under DC-DC switching controllers and specifically targets high-voltage low-side driving applications. The device is part of Texas Instruments' broader portfolio of isolated and non-isolated converter solutions.

DC DC Switching Controllers Replacement Considerations

Check for LM5022QDGSRQ1 as a potential alternative variant. Verify pin compatibility and functional equivalence before substitution. Ensure any replacement maintains the same automotive qualification and voltage ratings.