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LP3871 Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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LP3871 Datasheet(HTML) 5 Page - National Semiconductor (TI) |
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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 Lead Temperature (Soldering, 5 sec.) 260˚C ESD Rating (Note 3) 2 kV Power Dissipation (Note 2) Internally Limited Input Supply Voltage (Survival) −0.3V to +7.5V Shutdown Input Voltage (Survival) −0.3V to 7.5V Output Voltage (Survival), (Note 6), (Note 7) −0.3V to +6.0V I OUT (Survival) Short Circuit Protected Maximum Voltage for ERROR Pin V IN Maximum Voltage for SENSE Pin V OUT Operating Ratings Input Supply Voltage (Note 11) 2.5V to 7.0V Shutdown Input Voltage −0.3V to 7.0V Maximum Operating Current (DC) 0.8A Junction Temperature −40˚C to +125˚C Electrical Characteristics LP3871/LP3874 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: V IN =VO(NOM) + 1V, IL = 10 mA, COUT = 10µF, VSD = 2V. Symbol Parameter Conditions Typ (Note 4) LP3871/4 (Note 5) Units Min Max V O Output Voltage Tolerance (Note 8) V OUT +1V ≤ V IN ≤ 7.0V 10 mA ≤ I L ≤ 0.8A 0 -1.5 -3.0 +1.5 +3.0 % ∆V OL Output Voltage Line Regulation (Note 8) V OUT +1V ≤ V IN ≤ 7.0V 0.02 0.06 % ∆V O/ ∆I OUT Output Voltage Load Regulation (Note 8) 10 mA ≤ I L ≤ 0.8A 0.04 0.1 % V IN -VOUT Dropout Voltage (Note 10) I L =80 mA 24 30 35 mV I L = 0.8A 240 300 350 I GND Ground Pin Current In Normal Operation Mode I L =80 mA 5 9 10 mA I L = 0.8A 6 14 15 I GND Ground Pin Current In Shutdown Mode V SD ≤ 0.3V 0.01 10 µA -40˚C ≤ T J ≤ 85˚C 50 I O(PK) Peak Output Current V O ≥ V O(NOM) -4% 1 A Short Circuit Protection I SC Short Circuit Current 2.3 A www.national.com 5 |
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