Texas Instruments provides a recommended PCB layout in the TPS2383APMR datasheet (Section 10.2) and in the TPS2383APMR Evaluation Module User's Guide (SLUU444). The layout should prioritize minimizing inductance and resistance in the power paths, and ensuring good thermal dissipation.
The input capacitor should be selected based on the input voltage ripple, output current, and operating frequency. A general guideline is to use a capacitor with a capacitance value of at least 10uF and a voltage rating of 1.5 to 2 times the input voltage. X5R or X7R ceramic capacitors are recommended due to their low ESR and high ripple current capability.
The TPS2383APMR can deliver up to 3A of output current, but this is dependent on the input voltage, output voltage, and thermal conditions. The device should be operated within the recommended operating conditions to ensure reliable operation and to prevent overheating.
The TPS2383APMR output voltage can be configured using the FB (feedback) pin and an external resistor divider network. The output voltage is set by the ratio of the resistors and the internal reference voltage (0.8V). The datasheet provides a formula and examples for calculating the required resistor values.
The EN pin is used to enable or disable the TPS2383APMR. When the EN pin is high, the device is enabled and operates normally. When the EN pin is low, the device is disabled, and the output voltage is turned off. The EN pin can be used to implement power sequencing, shutdown, or low-power modes in the system.
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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.
