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AP7217A-33SG-U Datasheet(PDF) 8 Page - Diodes Incorporated |
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AP7217A-33SG-U Datasheet(HTML) 8 Page - Diodes Incorporated |
8 / 10 page AP7217A 3.3V 600mA CMOS LDO AP7217A Rev. 1 8 of 10 APRIL 2008 www.diodes.com © Diodes Incorporated Current Limit Protection When output current at OUT pin is higher than current limit threshold, the current limit protection will be triggered and clamp the output current to approximately 750mA to prevent over-current and to protect the regulator from damage due to overheating. Short circuit protection When VROUT pin is shorted to GND or VROUT voltage is less than 200mV, short circuit protection will be triggered and clamp the output current to approximately 50mA. VDOUT (reset output) ---Open-Drain Active-Low reset output--- In general, VDOUT is pulled up by a resistor (100Kohm) to VIN. The AP7217A microprocess (uP) supervisory circuitry asserts a guaranteed logic-low reset during power-up and power-down. Reset is asserted asserts when VIN is below the reset threshold and remain asserted for at least tRP after VIN rises above the reset threshold. As long as VIN is lower than the reset threshold, VDOUT remains at logic "0". When VIN become higher than VTH, a logic "1" is asserted after a time delay defined by tRP. Marking Information (1) SOP-8L 8 5 ( Top View ) Logo Part No. Internal code Year : "07" = 2007 "08" = 2008 Xth week : 01~52 14 7217A-33 YY WW X X G : Green (2) SOP-8L-EP 8 5 ( Top View ) Logo Part No. Internal code Year : "07" = 2007 "08" = 2008 Xth week : 01~52 14 7217A-33 YY WW X X E : SOP-8L-EP E G : Green Application Note (Continued) Vin Vout C Co ESR IN OUT GND AP7217A Iin Iout Iq |
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