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AP7168 Datasheet(PDF) 3 Page - Diodes Incorporated |
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AP7168 Datasheet(HTML) 3 Page - Diodes Incorporated |
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3 / 11 page  AP7168 1.2A LOW DROPOUT REGULATOR WITH POK AP7168 Document number: DS32019 Rev. 2 - 2 3 of 11 www.diodes.com September 2010 © Diodes Incorporated Electrical Characteristics (TA = 25 oC, V IN = VOUT +1V, CIN = 1μF, COUT = 1μF, VEN = 2V, unless otherwise stated) Symbol Parameter Test Conditions Min Typ. Max Unit IQ Input Quiescent Current IOUT= 0 ⎯ 125 180 µA ISHDN Input Shutdown Current VEN = 0V, IOUT = 0 (Note 3) -1 0.1 1 µA VDropout Dropout Voltage VOUT ≥ 1.5V, IOUT = 0.5A 230 mV VOUT ≥ 1.5V, IOUT = 1A 500 800 mV VREF FB reference voltage 0.8 V IFB FB leakage ⎯ 0.01 1 µA VOUT Output Voltage Total Accuracy -3 3 % OUT IN OUT V ΔV ΔV / Line Regulation VIN = VOUT +1V to 5.5V, IOUT = 1mA 0.02 %/V ΔV OUT / VOUT Load Regulation IOUT from 1mA to 1A -1.5 1.5 % tST Start-up Time, from EN high to POK high VEN = 0V to 2.0V, IOUT = 100mA, VIN = 3.3V 190 µs PSRR Power Supply Rejection Ratio 1kHz, VIN = 3.3V, VOUT = 1.2V, IOUT = 100mA 60 dB ILIMIT Current limit VOUT = 1.8V, ROUT = 0.5Ω 1.2 1.6 A ISHORT Short-circuit Current VIN = 3.3V, VOUT < 0.2V 750 mA VIL EN Input Logic Low Voltage 0.4 V VIH EN Input Logic High Voltage 1.4 V IEN EN Input leakage VEN = 0V or 5.5V ⎯ 0.01 1 µA VOL POK output low voltage Force 2mA 100 200 mV VPOK_TH_UP Output voltage (rising) POK threshold FB (or OUT for fixed version) rising 87% 92% 97% Vref VPOK_Hys Output voltage POK hysteresis 4% Vref POK deglitch VIN = 3.3V, VOUT = 1.2V 160 µs IPOK_LK POK leakage current VPOK = 5.5V ⎯ 0.01 1 µA TSHDN Thermal shutdown threshold 145 °C THYS Thermal shutdown hysteresis 25 °C θJA Thermal Resistance Junction-to- Ambient SOP-8L-EP (Note 4) 27 oC/W Notes: 3. POK pin must be disconnected from IN pin. 4. Test condition for SO-8EP: Device mounted on 2" x 2" FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground plane. |
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