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| CYStech Electronics Corp. 100mA Low Dropout Voltage Regulators Spec. No. : C503A3 Issued Date : 2003.03.21 Revised Date : Page No. : 1/4 PL2950-XXA3 * Battery powered systems * Cordless telephones * Radio control systems * Portable/Palm top/Notebook computers * Portable consumer equipment * Portable Instrumentation * Avionics * Automotive Electronics * SMPS Post-Regulator * Voltage Reference TO-92 FEATURES * High accuracy output voltage * Guaranteed 100mA output * Very low quiescent current * Low dropout voltage * Extremely tight load and line regulation * Very low temperature coefficient * Needs only 1F for stability * Error Flag warns of output dropout * Logic-Controlled electronic shutdown * Output programmable from 1.24 to 29V APPLICATIONS PRODUCT DESCRIPTION ThePL2950-XX is a low power voltage regulator. This device excellent choice for use in battery powered application such as cordless telephone, radio control systems, and portable computers. The PL2950-XX features very low quiescent current (75A Typ.) and very low drop output voltage (Typ. 40mV at light load and 380mV at 100mA). This includes a tight initial tolerance of 0.5% typ., extremely good load and line regulation of 0.05% typ., and very low output temperature coefficient, making the PL2950-XX useful as a low-power voltage reference. The error flag output feature is used as power-on reset for warn of a low output voltage, due to following batteries on input. Other feature is the logic-compatible shutdown input which enable the regulator to be switched on and off. The PL2950-XX is offered in 3-pin TO-92 package compatible with other fixed regulator. Absolute Maximum Ratings Power Dissipation Internally Limited Lead Temperature 260 (Soldering, 5 seconds) Storage Temperature Range -65C to+150C Operating Junction Temperature Range -55C to +150C Input Supply Voltage -0.3 to +30V Feedback Input Voltage -1.5 to +30V Shutdown Input Voltage -0.3 to +30V Error Comparator Output -0.3 to +30V Device Selection Guide Vout, Volts 2.85* 3.0 3.3 5.0 Device PL2950-2.85 PL2950-3.0 PL2950-3.3 PL2950 * - other versions are also available Vout = 2.0V to 5.0V. Please consult factory for more information PL2950A3 CYStek Product Specification CYStech Electronics Corp. Spec. No. : C503A3 Issued Date : 2003.03.21 Revised Date : Page No. : 2/4 ELECTRICALCHARACTERISTICS (at Ta =25, =15V;unless otherwise noted) Parameter Output Voltage Conditions(Note 2) Min 0.985Vo 0.98Vo 0.976Vo - Typ Vo Vo 50 0.04 0.1 50 380 75 8 110 160 0.05 430 160 100 Max 1.015Vo 1.02Vo 1.024Vo 150 0.4 0.3 80 450 120 12 170 200 0.2 - Units V -25TJ85 Full Operating Temperature Output Voltage 100AIL100mA,TJTJMAX Output Voltage Temperature (Note 1) Coefficient Line Regulation(Note 3) VO+1VVin30V Load Regulation(Note 3) 100AIL100mA Dropout Voltage(Note 4) IL=100A IL=100mA Ground Current IL=100A IL=100mA Dropout Ground Current Vin=Vo-0.5V,IL=100A Current Limit Vout=0 Thermal Regulation Output Noise, 10Hz to CL=1F 100KHz CL=200F CL=3.3F ppm/ % % mV A mA A mA %/W Vrms Note 1:Output or reference voltage temperature coefficients defined as the worse case voltage change divided by the total temperature range. Note 2:Unless otherwise specified all limits guaranteed for TJ=25,Vin=Vo+1V,IL=100A and CL=1F. Note 3.Regulations is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. Note 4:Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential. At very low values of programmed output voltage, the minimum input supply voltage of 2V(2.3V over temperature) must be taken into account. Block Diagram and Typical Application + INPUT OUTPUT Vo 1F GROUND PL2950A3 CYStek Product Specification CYStech Electronics Corp. TO-92 Dimension A B 1 2 3 Spec. No. : C503A3 Issued Date : 2003.03.21 Revised Date : Page No. : 3/4 2 Marking: 3 C PL431 2950 C D H I E F G 1 Style: Pin 1.Output 2.Ground 3.Input 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. PL2950A3 CYStek Product Specification |
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