Texas Instruments - TPS54231 2A, 28V-Input Step-Down DC/DC-Converter.

Texas Instruments - CD4013B D-Flipflop. I am not sure if this is correct. The Marking is CM013B/77K G4/A32G

National Semiconductor - LM386 Low Voltage Audio Power Amplifier

ST Microelectonics - STM32F030F4 Microcontroller.

JRC - NJM4556A Dual High-Current Operational Amplifier

ST Microelectronics - TL084CDT JFET Quad Operational Amplifier