MCP19111T-E/MQVAO

DC DC Switching Controllers Overview

The MCP19111T-E/MQVAO is a digitally enhanced power analog controller designed for single-output step-down (buck) applications in automotive environments. It operates with an input voltage range of 4.5V to 32V and delivers an output voltage between 0.5V and 3.6V at a maximum current of 0.03A. The device supports a switching frequency from 100kHz to 1600kHz using PWM control with synchronous rectification. It features programmability via PMBus, low quiescent current of 5mA typical, and functions within a temperature range starting at -40°C. Packaged in a 28-pin QFN EP tube, it meets AEC-Q100 qualification standards.

DC DC Switching Controllers Feature Summary

• Digitally enhanced power analog controller architecture with integrated synchronous rectification for high efficiency.
• Programmable operation via PMBus interface allowing dynamic adjustment of parameters.
• Automotive-grade reliability with AEC-Q100 qualification for harsh environment operation.
• Wide input voltage range supporting 4.5V to 32V for flexible system integration.

DC DC Switching Controllers Applications

• Automotive point-of-load (POL) converters
• Digital power management systems requiring PMBus communication
• Single-output buck converter designs in automotive electronics

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'VAO' indicates automotive grade qualification and reel packaging when ordering. Confirm that the 'E' designation aligns with the required operating temperature range of -40°C minimum. Ensure compatibility with PMBus-enabled host controllers for full programmability. Check datasheet revisions for any updates to electrical characteristics or pinout configurations prior to finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring digital control and synchronization in automotive DC-DC conversion. Consider the 28-pin QFN package for space-constrained PCB layouts. Evaluate the 1600kHz maximum switching frequency against thermal requirements and EMI constraints. Verify that the 0.03A output current capability meets the load demands of the target circuit design.

DC DC Switching Controllers Part Context

This part belongs to the MCP1911x series of digitally enhanced power analog controllers from Microchip Technology. These devices are designed for high-performance power management in automotive and industrial applications. The series emphasizes digital flexibility through PMBus integration while maintaining analog precision. The MCP19111 variant specifically targets single-output step-down topologies with synchronous rectification capabilities.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Microchip Technology official resources for cross-reference information or updated product line replacements.