Spec. No. : C519A3 Issued Date : 2003.03.26 Revised Date : . . Page No. : 1/4 CYStech Electronics Corp. Three Terminal Low Current Positive Voltage Regulators 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=25°C. 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=25°C) • 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 Vout 5k PL78L12 5.7kΩ 100 C1 C2 1.5kΩ 1.9kΩ 100 576Ω Vout 5p 3.41kΩ 13kΩ 3.89kΩ 2.23kΩ 7.8kΩ Note: C1 and C2 are required if regulator is located far from power supply filter and load, or oscillation may induced on the loop. PL78L12A3 2.84kΩ Gnd CYStek Product Specification Spec. No. : C519A3 Issued Date : 2003.03.26 Revised Date : . . Page No. : 2/4 CYStech Electronics Corp. Ordering Information Device PL78L12AA3 PL78L12BA3 Output Voltage Tolerance 3% 5% Electrical Characteristics Vin=19V, Iout=40mA, 0°C≤Tj≤125°C, Cin=0.33uF, Cout=0.1uF (unless otherwise noted) Symbol Vo Parameter Output Voltage ∆Vo Line Regulation ∆Vo Load Regulation IQ ∆IQ Vn ∆Vin / ∆Vout VD Symbol Vo Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Input Voltage Require To Maintain Line Regulation Output Voltage Line Regulation ∆Vo Load Regulation ∆IQ Vn ∆Vin / ∆Vout VD PL78L12A3 Tj=25°C 1mA≤Io≤70mA 1mA≤Io≤40mA and 14.5V≤Vin≤27V Tj=25°C, 16V≤Vin≤27V Tj=25°C, 14.5V≤Vin≤27V Tj=25°C, 1mA≤Io≤40mA Tj=25°C, 1mA≤Io≤100mA Tj=25°C 1mA≤Io≤40mA 16V≤Vin≤27V Ta=25°C, 10Hz≤f≤10KHz f=120Hz Tj=25°C Tj=25°C Parameter ∆Vo IQ Conditions Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Input Voltage Require To Maintain Line Regulation Conditions Tj=25°C 1mA≤Io≤70mA 1mA≤Io≤40mA and 14.5V≤Vin≤27V Tj=25°C, 16V≤Vin≤27V Tj=25°C, 14.5V≤Vin≤27V Tj=25°C, 1mA≤Io≤40mA Tj=25°C, 1mA≤Io≤100mA Tj=25°C 1mA≤Io≤40mA 16V≤Vin≤27V Ta=25°C, 10Hz≤f≤10KHz f=120Hz Tj=25°C Tj=25°C PL78L12A Min 11.64 11.64 Typ 12 - Max 12.36 12.36 11.64 - 12.36 40 - 20 30 10 30 3 80 54 1.7 100 180 50 100 5 0.1 1 - 14.5 - - PL78L12B Min 11.5 11.4 Typ 12 - Max 12.5 12.6 11.4 - 12.6 40 - 20 30 10 30 3 80 54 1.7 100 180 50 100 5 0.1 1 - 14.5 - - Units V mV mV mA mA uV dB V V Units V mV mV mA mA uV dB V V CYStek Product Specification Spec. No. : C519A3 Issued Date : 2003.03.26 Revised Date : . . Page No. : 3/4 CYStech Electronics Corp. Characteristic Curves Dropout Characteristics Maximum Average Power Dissipation 10000 5 4 Power Dissipation (mW) Output Voltage(V) 6 Io=1mA 3 Io=40mA 2 1000 Io=100mA 100 1 0 1 2 3 4 5 6 7 8 25 9 10 50 75 100 125 150 Ambient Temperature (°C) Input Voltage(V) Quiescent Current Quiescent Current 4 3.4 3 Quiescent Current(mA) Quiescent Current(mA) 3.5 2.5 2 1.5 1 3.2 3 2.8 0.5 2.6 0 0 PL78L12A3 5 10 15 20 25 Input Voltage(V) 30 35 0 50 100 Ambient Temperature(°C) 150 CYStek Product Specification Spec. No. : C519A3 Issued Date : 2003.03.26 Revised Date : . . Page No. : 4/4 CYStech Electronics Corp. TO-92 Dimension α2 A B 1 2 3 78L12 α3 C D H I G α1 Style: Pin 1.Vout 2.GND 3.Vin E F 3-Lead TO-92 Plastic Package CYStek Package Code: A3 *: Typical Inches Min. Max. 0.1704 0.1902 0.1704 0.1902 0.5000 0.0142 0.0220 *0.0500 0.1323 0.1480 DIM A B C D E F 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 α1 α2 α3 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