Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general guidelines for switching regulator layout, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths.
The datasheet provides a list of recommended inductors, but you can also use the following guidelines: choose an inductor with a saturation current rating above the peak current, a DC resistance (DCR) below 100 mΩ, and a self-resonant frequency above the switching frequency.
The datasheet specifies an operating junction temperature range of -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and cooling conditions. As a general rule, the ambient temperature should be at least 20°C below the maximum junction temperature.
Yes, the TPS3103K33DBVTG4 is qualified for automotive and high-reliability applications, but you should ensure that the device meets the specific requirements of your application, such as AEC-Q100 qualification, and follow the recommended design and testing guidelines.
Common issues with the TPS3103K33DBVTG4 can be troubleshooted by checking the PCB layout, component selection, and input/output voltage levels. Texas Instruments also provides application notes and technical support resources to help troubleshoot and resolve issues.
TPS3103K33DBVTG4 datasheet
by Texas Instruments
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