The recommended PCB layout for the MP3310EQ-LF-Z involves placing the input and output capacitors close to the IC, using a solid ground plane, and minimizing the loop area of the high-frequency current paths. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
The selection of input and output capacitors depends on the specific requirements of your application. For the MP3310EQ-LF-Z, a low-ESR ceramic capacitor with a value of 4.7uF to 10uF is recommended for the input capacitor, and a low-ESR ceramic capacitor with a value of 10uF to 22uF is recommended for the output capacitor.
The MP3310EQ-LF-Z is rated for operation up to 85°C ambient temperature, but it's recommended to derate the output current and voltage to ensure reliable operation at high temperatures. Consult the datasheet for more information on thermal derating.
To ensure EMC compliance, follow proper PCB layout and design guidelines, use a shielded inductor, and add EMI filters as needed. Additionally, ensure that the input and output voltage rails are properly decoupled, and that the device is operated within its specified frequency range.
The recommended input voltage range for the MP3310EQ-LF-Z is 2.7V to 5.5V, but it can operate down to 2.5V with reduced performance. Operating the device outside of the recommended input voltage range may affect its performance and reliability.
MP3310EQ-LF-Z datasheet
by Monolithic Power Systems
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