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The Deep Underground Neutrino Experiment will use unsurpassed quantities of liquid argon to fill a time projection chamber. Research is under way to place the electronics inside the cryostat. For reasons of efficiency and economics, the lifetimes of these circuits must be well in excess of 20 years. The principle mechanism for lifetime degradation of MOSFET devices and circuits operating at cryogenic...
This paper presents a 1.5 V 50 mA low dropout voltage (LDO) regulator using an NMOS transistor as the output pass element. Continuous time operation of the LDO is achieved using a new switched floating capacitor scheme that raises the gate voltage of the pass element. The regulator has a 0.1 V dropout at a 50 mA load and is stable for a wide load current range with loading capacitances up to 100 pF...
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