JAJSFC3A April 2018 – December 2018 TPS563249
PRODUCTION DATA.
When the input voltage is above the UVLO threshold and the EN voltage is above the enable threshold, the TPS563249 can operate in the continuous conduction mode (CCM) at a fixed frequency of 1.4 MHz. If EN pin is driven by a control signal, the required power on sequence is that applying input voltage at VIN pin firstly, then pull EN pin high. Be sure that the EN pin voltage isn't higher than VIN pin voltage. If EN pin is not used, it can be tied to VIN pin directly.