The PAM2423 from Diodes Incorporated is a DC to DC Converter with Input Voltage 2.7 to 5.5 V, Output Voltage 1 2.7 to 28 V, Output Current 1 5.5 mA, Operating Temperature -40 to 150 Degree C, Storage Temperature -55 to 150 Degree C. Tags: Surface Mount, Boost/Step Up. More details for PAM2423 can be seen below.