STMicroelectronics provides a recommended PCB layout in the application note AN4392, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
The input capacitor values depend on the input voltage, output voltage, and switching frequency. A general guideline is to use a capacitor with a value between 10uF to 22uF, with a voltage rating of at least 1.5 times the input voltage. Consult the application note AN4392 for more detailed guidance.
The SRK2001LTR is rated for operation up to 150°C ambient temperature, but it's recommended to derate the device for reliable operation above 125°C. Consult the datasheet and application note AN4392 for thermal management guidelines.
To ensure EMC compliance, follow the guidelines in the application note AN4392, which includes recommendations for PCB layout, component selection, and shielding. Additionally, consider using a metal shield or a shielded inductor to reduce EMI.
The output capacitor value depends on the output voltage, switching frequency, and load characteristics. A general guideline is to use a low-ESR capacitor with a value between 10uF to 47uF, with a voltage rating of at least 1.5 times the output voltage. Consult the application note AN4392 for more detailed guidance.
