The maximum power dissipation of TLC2264CD is 670mW at 25°C free-air temperature, but it can be increased by using a heat sink or by reducing the ambient temperature.
The output capacitor should be chosen based on the output voltage ripple requirement, output current, and ESR (Equivalent Series Resistance). A general rule of thumb is to use a capacitor with a value between 10uF to 100uF and an ESR of less than 1 ohm.
The EN (enable) 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.
Yes, TLC2264CD is rated for operation up to 125°C junction temperature. However, the maximum operating temperature is dependent on the power dissipation and the thermal resistance of the package. It's recommended to consult the thermal derating curves in the datasheet to ensure safe operation.
To minimize noise and EMI, it's recommended to follow good PCB layout practices such as keeping the input and output capacitors close to the regulator, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a shielded inductor and to keep the regulator away from noisy components.
TLC2264CD datasheet
by Texas Instruments
