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1A Adjustable/Fixed Low Dropout Linear Regulator
AMS1117
General Description
The AMS1117 is a low dropout three-terminal regulator with a dropout of 1.4V at 1A output current. The AMS1117 series provides current limiting and thermal shutdown. Its circuit includes a trimmed band-gap reference to assure output voltage accuracy to be within 2% for 1.2V, 1.5V,1.8V, 2.5V, 3.3V, 5V and adjustable versions. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal shutdown provides protection against any combination of overload and ambient temperature that would create excessive junction temperature. The AMS 1117 has an adjustable version that can provide the output voltage from 1.25V to 5V with only two external resistors.