Texas Instruments provides a recommended PCB layout in the TPS24741RGET evaluation module (EVM) user's guide, which includes guidelines for component placement, trace routing, and thermal management. Following this layout can help minimize noise, reduce EMI, and improve overall performance.
The input capacitor should be selected based on the input voltage ripple, output current, and operating frequency. A general rule of thumb is to choose a capacitor with a capacitance value of at least 10uF to 22uF, with a voltage rating of 1.5 to 2 times the input voltage. Additionally, the capacitor's ESR (Equivalent Series Resistance) should be low to minimize voltage ripple.
The TPS24741RGET is rated for a maximum output current of 4A, but this can be limited by the thermal performance of the device and the PCB. In practice, the maximum output current may be lower, depending on the specific application and operating conditions.
The TPS24741RGET has a built-in voltage regulator that can be configured for a specific output voltage using external resistors. The output voltage can be set using the VOUT pin and the FB (Feedback) pin, according to the equation: VOUT = 0.8V x (1 + R1/R2), where R1 and R2 are the external resistors.
The EN pin is used to enable or disable the TPS24741RGET. When the EN pin is high, the device is enabled and operates normally. When the EN pin is low, the device is disabled and enters a low-power shutdown mode, reducing power consumption.
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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.
