JAJSCP1 November 2016 TPS562219A , TPS563219A
PRODUCTION DATA.
The TPS562209 and TPS563209 are designed to operate from input supply voltage in the range of 4.5V to 17V. Buck converters require the input voltage to be higher than the output voltage for proper operation. The maximum recommended operating duty cycle is 65%. Using that criteria, the minimum recommended input voltage is VO / 0.65.