The LT1317BIS8#PBF is a micropower fixed frequency step-up DC-to-DC Converter operates over a wide input voltage range of 1.5 to 12V. The LT1317B does not shift into Burst Mode® operation at light loads, eliminating low frequency output ripple at the expense of light load efficiency. It contains an internal low-battery detector with a 200mV reference that stays alive when the device goes into shutdown. No-load quiescent current of the LT1317B is 100µA and shuts down to 30µA. The internal NPN power switch handles a 500mA current with a voltage drop of just 300mV.