A good PCB layout for the TPS65266-1RHBT involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. TI provides a recommended layout in the datasheet and application notes.
The output voltage of the TPS65266-1RHBT can be set using the FB pin and an external resistor divider network. The output voltage range is 0.9V to 3.3V. Choose a voltage that meets the requirements of your load, and use the datasheet equations to calculate the resistor values.
The TPS65266-1RHBT has an absolute maximum input voltage rating of 6.5V. However, the recommended maximum input voltage is 5.5V to ensure reliable operation and minimize power dissipation.
To ensure stability, use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, place the output capacitor close to the VOUT pin, and use a low-ESR capacitor. Additionally, follow the datasheet guidelines for the input capacitor and PCB layout.
The TPS65266-1RHBT has a current limit of 2A. However, the maximum current delivery is dependent on the input voltage, output voltage, and ambient temperature. Refer to the datasheet for thermal derating and current limit curves.
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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.
