STMicroelectronics provides a recommended PCB layout in their application note AN4553, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
To handle the high current consumption during startup, it's recommended to use a soft-start circuit or a current limiter to prevent voltage drops and ensure a stable power supply. Additionally, selecting a suitable input capacitor and ensuring a low-ESR output capacitor can help reduce the startup current.
While the datasheet specifies an operating temperature range of -40°C to 150°C, it's essential to note that the device's performance and reliability may degrade above 125°C. It's recommended to derate the device's performance and consider thermal management techniques to ensure reliable operation within the specified temperature range.
To ensure EMC, follow the guidelines in STMicroelectronics' application note AN1709, which provides recommendations for PCB layout, component selection, and shielding to minimize electromagnetic radiation and susceptibility.
STMicroelectronics recommends using X7R or X5R ceramic capacitors with a voltage rating of 50V or higher for the input and output capacitors. The recommended capacitance values are 10uF to 22uF for the input capacitor and 10uF to 47uF for the output capacitor.
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