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| CYStech Electronics Corp. Three Terminal Low Current Positive Voltage Regulators Spec. No. : C519A3 Issued Date : 2003.03.26 Revised Date : .. Page No. : 1/4 TO-92 PL78L12XA3 Description These regulators employ internal current-limiting and thermal-shutdown, making them essentially indestructible. They can deliver up to 100mA output current. if the case temperature can keep in Tc=25C. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used with power pass elements to make high-current voltage regulators. The PL78L12 used as a Zener diode/resistor combination replacement, offers an effective output impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower noise. Absolute Maximum Ratings (Ta=25C) * Input Voltage............................................................................................................. 35 V * Total Power Dissipation............................................................................... Internally limited * Operating Temperature Range...................................................................... 0 C to +125 C * Maximum Junction Temperature.................................................................................125 C * Storage Temperature Range........................................................................-55 C to +150 C * Lead Temperature (Soldering 10S)...................................... ....................................260 C Typical Application Schematic Diagram Vin Vin PL78L12 Vout 5k 5.7k 100 1.5k 1.9k 5p 3.41k 3.89k 7.8k 13k 2.23k Vout 100 C1 C2 576 Note: C1 and C2 are required if regulator is located far from power supply filter and load, or oscillation may induced on the loop. 2.84k Gnd PL78L12A3 CYStek Product Specification CYStech Electronics Corp. Ordering Information Device PL78L12AA3 PL78L12BA3 Output Voltage Tolerance 3% 5% Spec. No. : C519A3 Issued Date : 2003.03.26 Revised Date : .. Page No. : 2/4 Electrical Characteristics Vin=19V, Iout=40mA, 0CTj125C, Cin=0.33uF, Cout=0.1uF (unless otherwise noted) Symbol Parameter Conditions Tj=25C 1mAIo70mA 1mAIo40mA and 14.5VVin27V Tj=25C, 16VVin27V Tj=25C, 14.5VVin27V Tj=25C, 1mAIo40mA Tj=25C, 1mAIo100mA Tj=25C 1mAIo40mA 16VVin27V Ta=25C, 10Hzf10KHz f=120Hz Tj=25C Tj=25C PL78L12A Min 11.64 11.64 11.64 40 14.5 Typ 12 20 30 10 30 3 80 54 1.7 Max 12.36 12.36 12.36 100 180 50 100 5 0.1 1 mV mV mA mA uV dB V V Units Vo Output Voltage V Vo Vo IQ IQ Vn Vin / Vout VD Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Input Voltage Require To Maintain Line Regulation Parameter Symbol Conditions Tj=25C 1mAIo70mA 1mAIo40mA and 14.5VVin27V Tj=25C, 16VVin27V Tj=25C, 14.5VVin27V Tj=25C, 1mAIo40mA Tj=25C, 1mAIo100mA Tj=25C 1mAIo40mA 16VVin27V Ta=25C, 10Hzf10KHz f=120Hz Tj=25C Tj=25C PL78L12B Min 11.5 11.4 11.4 40 14.5 Typ 12 20 30 10 30 3 80 54 1.7 Max 12.5 12.6 12.6 100 180 50 100 5 0.1 1 - Units Vo Output Voltage V Vo Vo IQ IQ Vn Vin / Vout VD Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Input Voltage Require To Maintain Line Regulation mV mV mA mA uV dB V V PL78L12A3 CYStek Product Specification CYStech Electronics Corp. Characteristic Curves Dropout Characteristics Spec. No. : C519A3 Issued Date : 2003.03.26 Revised Date : .. Page No. : 3/4 Maximum Average Power Dissipation 6 5 4 3 2 Io=100mA 10000 Output Voltage(V) Io=1mA Io=40mA Power Dissipation (mW) 1000 1 0 1 2 3 4 5 6 7 8 9 10 100 25 50 75 100 125 150 Input Voltage(V) Quiescent Current 4 3.5 Quiescent Current(mA) Quiescent Current(mA) 3 2.5 2 1.5 1 0.5 0 0 5 10 15 20 25 Input Voltage(V) 30 35 2.6 0 3.2 3.4 Ambient Temperature (C) Quiescent Current 3 2.8 50 100 Ambient Temperature(C) 150 PL78L12A3 CYStek Product Specification CYStech Electronics Corp. TO-92 Dimension 2 Spec. No. : C519A3 Issued Date : 2003.03.26 Revised Date : .. Page No. : 4/4 A B 1 2 3 3 78L12 C D H I E F G 1 Style: Pin 1.Vout 2.GND 3.Vin 3-Lead TO-92 Plastic Package CYStek Package Code: A3 *: Typical DIM A B C D E F Inches Min. Max. 0.1704 0.1902 0.1704 0.1902 0.5000 0.0142 0.0220 *0.0500 0.1323 0.1480 Millimeters Min. Max. 4.33 4.83 4.33 4.83 12.70 0.36 0.56 *1.27 3.36 3.76 DIM G H I 1 2 3 Inches Min. Max. 0.0142 0.0220 *0.1000 *0.0500 *5 *2 *2 Millimeters Min. Max. 0.36 0.56 *2.54 *1.27 *5 *2 *2 Notes: 1.Controlling dimension: millimeters. 2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material. 3.If there is any question with packing specification or packing method, please contact your local CYStek sales office. Material: * Lead: 42 Alloy ; solder plating * Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0 Important Notice: * All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek. * CYStek reserves the right to make changes to its products without notice. * CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems. * CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance. PL78L12A3 CYStek Product Specification |
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