STMicroelectronics provides a recommended PCB layout in the application note AN2669, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
The inductor value depends on the input voltage, output voltage, and switching frequency. STMicroelectronics provides an inductor selection guide in the datasheet, and you can also use online tools or consult with an applications engineer to determine the optimal inductor value for your specific application.
While the datasheet specifies an operating temperature range of -40°C to 150°C, the maximum ambient temperature for reliable operation depends on the specific application and thermal management. As a general guideline, it's recommended to keep the ambient temperature below 125°C to ensure reliable operation and minimize thermal stress.
To ensure EMC compliance, follow the guidelines in the application note AN2669, which includes recommendations for PCB layout, component selection, and shielding. Additionally, perform EMC testing and simulation to validate your design's compliance with relevant standards and regulations.
The recommended input capacitor type is an X7R or X5R ceramic capacitor with a value of 10uF to 22uF. The capacitor value depends on the input voltage and ripple requirements, but a 10uF capacitor is a good starting point for most applications.
LDK130M11RY datasheet
by STMicroelectronics
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