STMicroelectronics provides a recommended PCB layout in the application note AN1024, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
The input capacitor selection depends on the input voltage, output voltage, and output current. A general guideline is to choose a capacitor with a voltage rating of at least 1.5 times the input voltage, and a capacitance value between 1uF to 10uF. Consult the datasheet and application notes for more specific guidance.
While the datasheet specifies an operating temperature range of -40°C to 150°C, the maximum ambient temperature for reliable operation is typically around 125°C. Exceeding this temperature may lead to reduced performance, increased power consumption, or even device failure.
To ensure EMC, follow the guidelines in the application note AN1024, which includes recommendations for PCB layout, component selection, and shielding. Additionally, consider using a metal shield or a mu-metal shield around the device to reduce electromagnetic radiation.
The recommended output capacitor value depends on the output voltage and current. A general guideline is to use a capacitor with a value between 1uF to 10uF, and a type such as X5R or X7R ceramic capacitors, which provide low ESR and high reliability.
L4925PD013TR datasheet
by STMicroelectronics
