Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency layout guidelines, 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, output voltage, and switching frequency. TI provides an inductor selection guide in the datasheet, and online tools such as the TI Inductor Selection Tool can also be used to find a suitable inductor.
The TPS61041AQDBVRQ1 is rated for operation up to 125°C, but the maximum ambient temperature for reliable operation depends on the specific application and the thermal design of the system. It's recommended to follow the thermal design guidelines in the datasheet and to perform thermal simulations to ensure reliable operation.
To ensure EMC, it's recommended to follow general EMC design guidelines, such as using a shielded inductor, keeping the switching node (SW) away from sensitive nodes, and using a common-mode choke or filter on the input and output lines.
The recommended input capacitor type is a ceramic capacitor with a value of 10uF to 22uF, depending on the input voltage and output current. The capacitor should be placed close to the VIN pin and have a low equivalent series resistance (ESR) to minimize voltage ripple.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
