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 datasheet provides a list of recommended inductors, but you can also use the following guidelines: choose an inductor with a high saturation current rating, low DC resistance, and a suitable inductance value (typically between 1-10uH). You can also use online inductor selection tools or consult with the inductor manufacturer.
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 to ensure reliable operation.
Yes, the TPS61042DRBRG4 is a robust device that can operate in high-vibration environments, but you should ensure that the PCB is properly secured and the components are properly soldered to prevent mechanical stress. You may also need to add additional mechanical support or vibration dampening measures depending on the specific application.
Start by checking the input voltage, output voltage, and current draw to ensure they are within the specified ranges. Check the PCB layout and component values to ensure they match the recommended values. Use an oscilloscope to check for voltage ripple, noise, or oscillations. Consult the datasheet and application notes for troubleshooting guidelines, and consider seeking support from Texas Instruments or a qualified engineer.
TPS61042DRBRG4 datasheet
by Texas Instruments
Findchips
