Ultra-low dropout, wide input range 150mA regulator
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By
Graham Prophet
The AP7380’s 3.5V to 24V input voltage range enables operation from standard 5V, 9V and 12V system power rails with sufficient overhead to cope with supply transients. Regulated output voltage variants at 3.0V, 3.3V, 4.15V, 4.4V and 5.0V are offered. Line/load regulation maintains a room temperature output accuracy of 1.0% under all I/O voltage conditions up to a maximum rated load current of 150 mA.
Dropout voltage is 250 mV at an output voltage of 5V and load current of 50 mA, with quiescent current of 1.8 µA. The AP7380 also integrates a thermal shutdown function. In SOT25 and SOT89 it costs $0.12 (1000).
Diodes; www.diodes.com
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