Texas Instruments provides a recommended PCB layout in the TPS65510RGTT datasheet (Section 10.2) and in the TPS65510RGTT Evaluation Module User's Guide (SLUU444). It's essential to follow these guidelines to minimize noise, ensure proper thermal management, and optimize performance.
The input capacitor selection depends on the input voltage, output voltage, and desired ripple current. TI recommends using a low-ESR ceramic capacitor with a minimum capacitance of 10 μF and a voltage rating of at least 1.5 times the maximum input voltage. Refer to the datasheet (Section 7.3.1) for more information.
The TPS65510RGTT can deliver up to 1.5 A of output current. However, the maximum output current is dependent on the input voltage, output voltage, and ambient temperature. Refer to the datasheet (Section 6.3) for the output current vs. input voltage and temperature graphs.
The TPS65510RGTT has a built-in OVP feature that can be enabled by connecting the OVP pin to a voltage divider network. The OVP threshold is set to 1.2 times the nominal output voltage. Refer to the datasheet (Section 7.3.4) for more information on implementing OVP.
The EN (enable) pin is used to turn the device on or off. When the EN pin is pulled high (above 1.4 V), the device is enabled, and when it's pulled low (below 0.4 V), the device is disabled. This pin can be used to implement power sequencing or to turn off the device during shutdown or low-power modes.
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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.
