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LP3872ESX-1.8 Datasheet(PDF) 7 Page - National Semiconductor (TI) |
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LP3872ESX-1.8 Datasheet(HTML) 7 Page - National Semiconductor (TI) |
7 / 18 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 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) 1.5A Junction Temperature −40˚C to +125˚C Electrical Characteristics LP3872/LP3875 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) LP3872/5 (Note 5) Units Min Max V O Output Voltage Tolerance (Note 8) V OUT +1V ≤ V IN ≤ 7.0V 10 mA ≤ I L ≤ 1.5A 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 ≤ 1.5A 0.06 0.12 % V IN -VOUT Dropout Voltage (Note 10) I L = 150 mA 38 50 60 mV I L = 1.5A 380 450 550 I GND Ground Pin Current In Normal Operation Mode I L = 150 mA 5 9 10 mA I L = 1.5A 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% 1.8 A Short Circuit Protection I SC Short Circuit Current 3.2 A www.national.com 7 |
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