LMR64010 Output Voltage up to 40V, 1A (2.7V to 14V). LMR62014 Output Voltage up to 20V, 1.4A (2.7V to 14V). LMR62421 Output Voltage up to 24V, 2.1A (2.7V to 5.5V). Current-mode Step-Up (boost) converter. 1.6MHz Switching Frequency. Low Shutdown Quiescent