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LP2960 数据表(PDF) 2 Page - National Semiconductor (TI) |
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LP2960 数据表(HTML) 2 Page - National Semiconductor (TI) |
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2 / 17 page ![]() Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range −65˚C to +150˚C Operating Junction Temperature Range LP2960AI/LP2960I −40˚C to +125˚C Lead Temperature (Soldering, 5 sec.) 260˚C Power Dissipation (Note 2) Internally Limited Input Supply Voltage −20V to +30V Feedback Input Voltage (Note 3) −0.3V to +5V Comparator Input Voltage (Note 4) −0.3V to +30V Comparator Output Voltage (Note 4) −0.3V to +30V ESD Rating (Note 15) 1.5 kV Electrical Characteristics Limits in standard typeface are for T J = 25˚C, and limits in boldface type apply over the full operating temperature range. Unless otherwise specified: C IN = 4.7 µF, VIN = VO(NOM) + 1V, IL = 1 mA, C OUT = 10 µF for 5V parts or COUT = 22 µF for 3.3V parts, Feedback pin is tied to VTAP pin, Output pin is tied to Sense pin, V S/D = 2V. Symbol Parameter Conditions Typ LP2960AI (Note 14) LP2960I (Note 14) Units Min Max Min Max V O Output Voltage (5V Versions) 1mA ≤ I L ≤ 500 mA 5.0 4.962 4.930 5.038 5.070 4.925 4.880 5.075 5.120 V Output Voltage (3.3 Versions) 1mA ≤ I L ≤ 500 mA 3.3 3.275 3.254 3.325 3.346 3.250 3.221 3.350 3.379 Output Voltage Temperature Coefficient (Note 5) 20 130 160 ppm/˚C Output Voltage Line Regulation V IN = [VO(NOM) + 1V] to 30V 0.06 0.2 0.5 0.4 0.8 % Output Voltage Load Regulation (Note 6) 0.08 0.16 0.30 0.20 0.40 % V IN −VO Dropout Voltage (Note 7) I L = 1mA 12 30 50 30 50 mV I L = 100 mA 180 250 350 250 350 I L = 200 mA 260 350 450 350 450 I L = 500 mA 470 600 800 600 800 I GND Ground Pin Current (Note 8) I L = 1mA 450 600 750 600 750 µA I L = 100 mA 2.6 4.0 5.0 4.0 5.0 mA I L = 200 mA 2.5 8 10 8 10 I L = 500 mA 21 35 40 35 40 I GND Ground Pin Current at Dropout (Note 8) V IN = VO(NOM) − 0.5V I L = 100 µA 1.8 3 5 3 5 mA Ground Pin Current at Shutdown (Note 8) V SD ≤ 1.1V 300 400 400 µA I LIMIT Current Limit R L = 0.5Ω 1000 1500 1600 1500 1600 mA Thermal Regulation (Note 10) 0.05 0.2 0.2 %/W e n Output Noise Voltage @ I L = 100 mA (10 Hz–100kHz) C OUT = 10 µF 300 µV RMS C OUT = 47 µF 210 C OUT = 47 µF (Note 11) 130 www.national.com 2 |
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