A good PCB layout for the TPS61041DBVRG4 involves placing the input and output capacitors close to the IC, using a solid ground plane, and keeping the high-current paths short and wide. TI provides a recommended PCB layout in the datasheet and application notes.
When choosing an inductor for the TPS61041DBVRG4, consider the inductor's saturation current, DC resistance, and core material. TI recommends using a shielded inductor with a saturation current rating above the peak current of the converter. The datasheet provides a list of recommended inductors.
The TPS61041DBVRG4 has an operating junction temperature range of -40°C to 125°C. However, the maximum ambient temperature range depends on the specific application and the thermal design of the system. TI recommends following the thermal design guidelines in the datasheet to ensure reliable operation.
To ensure stability, follow the compensation network design guidelines in the datasheet, and use the recommended component values. Additionally, ensure that the input and output capacitors are properly selected and placed close to the IC. TI also provides a stability analysis tool to help with compensation design.
The TPS61041DBVRG4 has a maximum input voltage rating of 18V. However, the recommended input voltage range is 2.7V to 15V. Operating the device above 15V may reduce its reliability and lifespan.
TPS61041DBVRG4 datasheet
by Texas Instruments
