Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency layout guidelines, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths.
The selection of the inductor depends on the output current, output voltage, and switching frequency. TI provides an inductor selection guide in the datasheet, and online tools such as the TI Inductor Selection Tool can also be used to find a suitable inductor.
The TPS62300YZDR is rated for operation up to 85°C ambient temperature, but it's recommended to derate the output current and voltage at higher temperatures to ensure reliable operation.
To ensure EMC compliance, follow proper PCB layout and shielding techniques, use a suitable input filter, and ensure that the output voltage and current are within the specified limits. TI also provides EMC guidelines in the datasheet.
A low-ESR ceramic capacitor with a value of 10uF to 22uF is recommended for the input capacitor. The capacitor should be rated for the input voltage and have a low equivalent series resistance (ESR) to minimize voltage ripple.
TPS62300YZDR datasheet
by Texas Instruments
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