Microchip Technology, Inc. DC DC Switching Controllers MCP19114T-E/MQ

The MCP19114T-E/MQ is a digitally enhanced power analog synchronous low-side PWM controller designed for various DC-DC converter topologies, including flyback, Ćuk, boost, and SEPIC configurations. It operates with an input voltage range of 4.5V to 42V and supports both quasi-resonant and fixed-frequency operation, with a fixed switching frequency adjustable from 31.25 kHz to 2.0 MHz. This controller features low quiescent and sleep currents, making it suitable for energy-efficient applications. It includes low-side gate drivers capable of providing up to 1A sink/source current, and it employs peak current mode control with differential remote output sensing. The MCP19114T-E/MQ is AEC-Q100 qualified, indicating its suitability for automotive applications. Configurable parameters include input undervoltage and overvoltage lockout, primary current leading edge blanking, and programmable GPIO pin options. The integrated low-side differential current sense amplifier ensures ±5% current regulation, while thermal shutdown protection enhances reliability. The device also incorporates a precision 8 MHz internal oscillator and supports in-circuit serial programming.