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LM2940CS-12 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM2940CS-12 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 19 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. LM2940S, T, MP ≤ 100 ms 60V LM2940CS, T ≤ 1 ms 45V Internal Power Dissipation (Note 2) Internally Limited Maximum Junction Temperature 150˚C Storage Temperature Range −65˚C ≤ T J ≤ +150˚C Lead Temperature, Time for Wave Soldering TO-220 (T) Package 260˚C, 10s TO-263 (S) Package 260˚C, 4s SOT-223 (MP) Package 260˚C, 4s ESD Susceptibility (Note 3) 2 kV Operating Conditions (Note 1) Input Voltage 26V Temperature Range LM2940T, LM2940S −40˚C ≤ T J ≤ 125˚C LM2940CT, LM2940CS 0˚C ≤ T J ≤ 125˚C LM2940IMP −40˚C ≤ T J ≤ 85˚C LM2940J, LM2940WG −55˚C ≤ T J ≤ 125˚C LM2940LD −40˚C ≤ T J ≤ 125˚C Electrical Characteristics V IN =VO + 5V, IO = 1A, CO = 22 µF, unless otherwise specified. Boldface limits apply over the entire operating tempera- ture range of the indicated device. All other specifications apply for T A =TJ = 25˚C. Output Voltage (V O)5V 8V Units LM2940 LM2940/883 LM2940 LM2940/883 Parameter Conditions Typ Limit Limit Typ Limit Limit (Note 4) (Note 5) (Note 4) (Note 5) 6.25V ≤ V IN ≤ 26V 9.4V ≤ V IN ≤ 26V Output Voltage 5 mA ≤ I O ≤ 1A 5.00 4.85/4.75 4.85/4.75 8.00 7.76/7.60 7.76/7.60 V MIN 5.15/5.25 5.15/5.25 8.24/8.40 8.24/8.40 V MAX Line Regulation V O +2V ≤ V IN ≤ 26V, 20 50 40/50 20 80 50/80 mV MAX I O =5 mA Load Regulation 50 mA ≤ I O ≤ 1A LM2940, LM2940/883 35 50/80 50/100 55 80/130 80/130 mV MAX LM2940C 35 50 55 80 Output 100 mADC and Impedance 20 mArms, 35 1000/1000 55 1000/1000 m Ω f O = 120 Hz Quiescent V O +2V ≤ V IN ≤ 26V, Current I O =5 mA LM2940, LM2940/883 10 15/20 15/20 10 15/20 15/20 mA MAX LM2940C 10 15 V IN =VO + 5V, 30 45/60 50/60 30 45/60 50/60 mA MAX I O =1A Output Noise 10 Hz − 100 kHz, 150 700/700 240 1000/1000 µV rms Voltage I O =5 mA Ripple Rejection f O = 120 Hz, 1 Vrms, I O = 100 mA LM2940 72 60/54 66 54/48 dB MIN LM2940C 72 60 66 54 f O = 1 kHz, 1 Vrms, 60/50 54/48 dB MIN I O =5 mA Long Term 20 32 mV/ Stability 1000 Hr Dropout Voltage I O = 1A 0.5 0.8/1.0 0.7/1.0 0.5 0.8/1.0 0.7/1.0 V MAX I O = 100 mA 110 150/200 150/200 110 150/200 150/200 mV MAX Short Circuit Current (Note 6) 1.9 1.6 1.5/1.3 1.9 1.6 1.6/1.3 A MIN www.national.com 4 |
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