It's essential to follow a good layout and placement strategy to minimize noise and ensure proper operation. Place the TL3472CD close to the power source, use a solid ground plane, and keep the input and output traces short and separate.
Choose an output capacitor with a low ESR (Equivalent Series Resistance) and a high ripple current rating. A 10uF to 22uF ceramic capacitor with an X5R or X7R dielectric is a good starting point. Ensure the capacitor is rated for the output voltage and can handle the ripple current.
Although the datasheet specifies a maximum input voltage of 15V, it's recommended to limit the input voltage to 12V to ensure reliable operation and minimize the risk of damage.
The output voltage (Vout) can be calculated using the formula: Vout = (R1 / R2) * (Vref), where R1 and R2 are the feedback resistors, and Vref is the internal reference voltage (1.25V).
The EN pin is used to enable or disable the regulator. When the EN pin is pulled low, the regulator is disabled, and the output voltage is turned off. This pin can be used to implement power sequencing or to turn off the regulator when not in use.