Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good layout practices, such as keeping the input and output traces separate, using a solid ground plane, and minimizing parasitic inductance.
To ensure stability, follow the recommended compensation network values, and consider adding a small capacitor (e.g., 10nF) between the output and ground to reduce noise. Additionally, ensure the input and output capacitors are properly sized and placed.
Although the datasheet specifies a maximum input voltage of 42V, it's recommended to limit the input voltage to 40V to ensure reliable operation and prevent damage to the device.
The output voltage ripple and noise can be estimated using the equations provided in the datasheet. Additionally, consider using a post-regulator or filtering components to reduce the output noise and ripple.
The thermal derating curve is not explicitly provided in the datasheet, but it can be estimated using the thermal resistance values (θJA and θJC) and the maximum junction temperature (TJ). Consult the Texas Instruments application notes or contact their support for more information.
MPY534KD datasheet
by Texas Instruments
