TS3310ITD1022T - 

The TS3310ITD1022T is a low-power boost Switching Regulator with an industry leading low quiescent current of 150nA (typical). The 150nA is the actual current consumed from the battery while the output is in regulation. The TS3310's extremely low power internal circuitry consumes 120nA on average, with periodic switching cycles which service the load occurring at intervals of up to 25 seconds, together yielding the average 150nA. The TS3310 steps up input voltage from 0.9 to 5V to sixteen selectable output voltages ranging from 1.8 to 5V. It includes two output options, one being an always-ON storage output while the additional output is an output load switch that is designed to supply burst-ON loads in a low duty cycle manner. It operates in discontinuous conduction mode with an on-time proportional to 1/VIN, thereby limiting the maximum input current by the selection of the inductor value, ensuring the input current does not drag down the input source.