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LP2953AIN Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LP2953AIN Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 22 page All Voltage Options (Continued) Electrical Characteristics (Continued) Limits in standard typeface are for T J = 25˚C, bold typeface applies over the full operating temperature range. Limits are guar- anteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless other- wise specified: V IN =VO(NOM) + 1V, IL = 1 mA, CL = 2.2 µF for 5V parts and 4.7µF for 3.3V parts. Feedback pin is tied to V Tap pin, Output pin is tied to Output Sense pin. Symbol Parameter Conditions Typical LP2952AI, LP2953AI, LP2952AI-3.3, LP2953AI-3.3, LP2953AM (Notes 16, 17) LP2952I, LP2953I, LP2952I-3.3, LP2953I-3.3 Units Min Max Min Max Output Voltage Load Regulation (Note 6) I L = 1 mA to 250 mA 0.04 0.16 0.20 % I L = 0.1 mA to 1 mA 0.20 0.30 V IN–VO Dropout Voltage (Note 7) I L = 1 mA 60 100 100 mV 150 150 I L = 50 mA 240 300 300 420 420 I L = 100 mA 310 400 400 520 520 I L = 250 mA 470 600 600 800 800 I GND Ground Pin Current (Note 8) I L = 1 mA 130 170 170 µA 200 200 I L = 50 mA 1.1 2 2 mA 2.5 2.5 I L = 100 mA 4.5 6 6 88 I L = 250 mA 21 28 28 33 33 I GND Ground Pin Current at Dropout V IN =VO(NOM) −0.5V 165 210 210 µA I L = 100 µA 240 240 I GND Ground Pin Current at Shutdown (Note 8) V SHUTDOWN ≤ 1.1V 105 140 140 µA I LIMIT Current Limit V OUT = 0 380 500 500 mA 530 530 Thermal Regulation (Note 10) 0.05 0.2 0.2 %/W e n Output Noise Voltage (10 Hz to 100 kHz) I L = 100 mA C L = 4.7 µF 400 µV RMS C L =33µF 260 C L = 33 µF (Note 11) 80 V REF Reference Voltage (Note 12) 1.230 1.215 1.245 1.205 1.255 V 1.205 1.255 1.190 1.270 Reference Voltage Line Regulation V IN = 2.5V to VO(NOM) + 1V 0.03 0.1 0.2 % V IN =VO(NOM) + 1V to 30V (Note 13) 0.2 0.4 Reference Voltage Load Regulation I REF = 0 to 200 µA 0.25 0.4 0.8 % 0.6 1.0 Reference Voltage Temp. Coefficient (Note 5) 20 ppm/˚C www.national.com 4 |
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