Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general guidelines for switching regulator layouts, 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, switching frequency, and desired ripple current. Texas Instruments provides an inductor selection guide in the datasheet, and online tools such as the TI Power Designer can also be used to help select the right inductor.
The maximum ambient temperature rating for the LM3466TA/NOPB is 85°C, but the device can operate at higher temperatures with derating. It's recommended to consult the thermal derating curves in the datasheet to determine the maximum operating temperature for a specific application.
To ensure stability, it's recommended to follow the compensation network guidelines in the datasheet, and to use a compensation capacitor with a value between 10nF and 100nF. Additionally, the output capacitor should be selected to ensure that the output voltage ripple is within the recommended range.
The LM3466TA/NOPB is a commercial-grade device, but it can be used in high-reliability or automotive applications with proper design and testing. It's recommended to consult with Texas Instruments' application engineers and to follow the relevant industry standards and guidelines for reliability and qualification.
LM3466TA/NOPB datasheet
by Texas Instruments
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