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SI9185 Datasheet(PDF) 4 Page - Vishay Siliconix |
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SI9185 Datasheet(HTML) 4 Page - Vishay Siliconix |
4 / 12 page Si9185 Vishay Siliconix www.vishay.com 4 Document Number: 71765 S-20641—Rev. B, 06-May-02 SPECIFICATIONS Limits –40 to 85 _C Test Conditions Unless Otherwise Specified VIN = VOUT(nom) + 1 V, IOUT = 1 mA CIN = 2.2 mF, COUT = 2.2 mF, VSD = 1.5 V Parameter Unit Maxb Typc Minb Tempa Test Conditions Unless Otherwise Specified VIN = VOUT(nom) + 1 V, IOUT = 1 mA CIN = 2.2 mF, COUT = 2.2 mF, VSD = 1.5 V Symbol IIH VSD = 0 V, Regulator OFF Room 0.01 m SD Input Currente IIL VSD = 6 V, Regulator ON Room 1.0 mA Shutdown Hysteresis VHYST Full 100 mV Error Output Output High Leakage IOFF ERROR = VOUT(nom) Full 0.01 2 mA Output Low Voltageg VOL ISINK = 2 mA Full 0.4 Out-of-Regulation Error Flag Threshold Voltage (rising)g VTH Full 0.93 x VOUT 0.95 x VOUT 0.97 x VOUT V Hysteresisg VHYST Room 2% x VOUT Delay Pin Current Source IDELAY Room 1.2 2.2 3.0 mA Notes a. Room = 25 _C, Full = –40 to 85_C. b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum. c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Typical values for dropout voltage at VOUT w 2 V are measured at VOUT = 3.3 V, while typical values for dropout voltage at VOUT < 2 V are measured at VOUT = 1.8 V. d. Dropout voltage is defined as the input to output differential voltage at which the output voltage drops 2% below the output voltage measured with a 1-V differential, provided that VIN does not not drop below 2.0 V. When VOUT(nom) is less than 2.0 V, the output will be in regulation when 2.0 V – VOUT(nom) is greater than the dropout voltage specified. e. The device’s shutdown pin includes a typical 6-M W internal pull-down resistor connected to ground. f. VOUT is defined as the output voltage of the DUT at 1 mA. g. The Error Output (Low) function is guaranteed for VIN w2.0 V. TIMING WAVEFORMS VIN 0.95 VNOM VOUT VOUT ERROR VNOM tDELAY FIGURE 4. Timing Diagram for Power-Up tON |
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