The MIC38C45AYM is a BiCMOS current-mode PWM controller designed for high-performance, efficient power supply applications. It features ultralow startup current, low operating current, and rail-to-rail output capability, making it ideal for step-down, step-up, and flyback regulators. Its pin-for-pin compatibility with UC384x devices simplifies design and integration. The MIC38C45AYM is available in both SOIC and MM8 package options, catering to a wide range of design requirements.