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The MCP1824/MCP1824S is a 300 mA Low Dropout(LDO) linear regulator that provides high current andlow output voltages. The MCP1824 comes in a fixed oradjustable output voltage version, with an outputvoltage range of 0.8V to 5.0V. The 300 mA outputcurrent capability, combined with the low output voltagecapability, make the MCP1824 a good choice for newsub-1.8V output voltage LDO applicaTIons that havehigh current demands. The MCP1824S is a 3-pin fixedvoltage version.The MCP1824/MCP1824S is stable using ceramicoutput capacitors that inherently provide lower outputnoise and reduce the size and cost of the enTIreregulator soluTIon. Only 1 μF of output capacitance isneeded to stabilize the LDO.Using CMOS construcTIon, the quiescent currentconsumed by the MCP1824/MCP1824S is typicallyless than 120 μA over the entire input voltage range,making it attractive for portable computing applicationsthat demand high output current. The MCP1824versions have a Shutdown (SHDN) pin. When shutdown, the quiescent current is reduced to less than0.1 μA.On the MCP1824 fixed output versions, the scaleddownoutput voltage is internally monitored and apower good (PWRGD) output is provided when theoutput is within 92% of regulation (typical). ThePWRGD delay is internally fixed at 110 μs (typical).The overtemperature and short circuit current-limitingprovide additional protection for the LDO during systemfault conditions.
