L4940 STMicroelectronics, L4940 Datasheet
L4940
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L4940 Summary of contents
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... VERY LOW QUIESCENT CURRENT THERMAL SHUTDOWN SHORT CIRCUIT PROTECTION REVERSE POLARITY PROTECTION DESCRIPTION The L4940 series of three terminal positive regulators is available in TO-220 and D package and with several fixed output voltages, making it useful in a wide range of industrial and consumer applications. Thanks to its very low ...
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... L4940 series PIN CONNECTION AND ORDER CODES ORDERING NUMBERS TO-220 L4940V5 L4940V85 L4940V10 L4940V12 ABSOLUTE MAXIMUM RATING Symbol Description V Forward Input Voltage I V Reverse Input Voltage IR I Output Current O P Power Dissipation tot Junction and Storage Temperature THERMAL DATA ...
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... TEST CIRCUITS Figure Parameter. Figure 2 : Load Rejection. Figure 3 : Ripple Rejection. L4940 series 3/13 ...
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... Quiescent Current Change I Q Output Voltage Drift SVR Supply Voltage Rejection V Dropout Voltage d I Short Circuit Current s c ELECTRICAL CHARACTERISTICS FOR L4940V85 (refer to the test circuits 10.5V 0 unless otherwise specified Symbol Parameter V Output Voltage o V Output Voltage ...
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... ELECTRICAL CHARACTERISTICS FOR L4940V10 (refer to the test circuits 12V 0 unless otherwise specified Symbol Parameter V Output Voltage o V Output Voltage o V Operating Input Voltage i Line Regulation V o Load Regulation Quiescent Current Q Quiescent Current Change I Q Output Voltage Drift ...
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... L4940 series Figure 4 : Dropout voltage vs. Output Current. Figure 6 : Output voltage vs. Temperature (L4940V5). Figure 8 : Output voltage vs. Temperature (L4040V10). 6/13 Figure 5 : Dropout Voltage vs. Temperature. Figure 7 : Output Voltage vs. Temperature (L4940V85). Figure 9 : Output Voltage vs. Temperature (L4940V12). ...
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... Figure 10 : Quiescent Current vs. Temperature (L4940V5). Figure 12 : Quiescent Current vs. Output Current (L4940V5). Figure 14 : Peak Output Current vs. Input/OutputDifferential Voltage (L4940V5). L4940 series Figure 11 : Quiescent Current vs. Input Voltage (L4940V5). Figure 13 : Short-circuit Current vs. Temperature (L4940V5). Figure 15 : Low Voltage Behavior (L4940V5 ). 7/13 ...
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... L4940 series Figure 16 : Low Voltage Behavior (L4940V85). Figure 18 : Low Voltage Behavior (L4940V12). Figure 20 : Supply Voltage Rejection vs. output Current. 8/13 Figure 17 : Low Voltage Behavior (L4940V10). Figure 19 : Supply Voltage Rejection vs. Frequency (L4940V5). Figure 21 : Load Dump Characteristics (L4940V5 ). ...
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... Figure 22 : Line Transient Response (L4940V5). Figure 24 : Total Power Dissipation. Figure 25 : Distributed Supply with On-card L4940 and L4941 Low-drop Regulators. L4940 series Figure 23 : Load Transient Response. 9/13 ...
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... L4940 series Figure 26 : Distributed Supply with On-card L4940 and L4941 Low-drop Regulators. ADVANTAGES OF THESE APPLICATIONS ARE : On card regulation with short-circuit and thermal protection on each output. Very high total system efficiency due to the switching preregulation and very low-drop postregulations. Figure 27. ADVANTAGES OF THIS CONFIGURATION ARE : Very high regulation (line and load) on both the output voltages ...
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... L5 2 Dia. 3.65 inch MAX. MIN. TYP. 4.8 1.37 2.8 0.094 1.35 0.047 0.55 0.014 0.94 0.024 1.4 0.045 5.21 0.195 0.200 10.4 10.4 0.396 0.638 27.1 1.035 1.051 3 0.102 15.8 0.594 6.6 0.236 3.85 0.144 L4940 series MAX. 0.189 0.054 0.110 0.053 0.022 0.037 0.055 0.205 0.409 0.409 1.067 0.118 0.622 0.260 0.152 P011D 11/13 ...
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... L4940 series TO-263 (D mm DIM. MIN. TYP. A 4.4 A1 2.49 B 0.7 B2 1.14 C 0.45 C2 1. 1. DETAIL”A” 12/13 2 PAK) MECHANICAL DATA MAX. MIN. 4.6 0.173 2.69 0.098 0.93 0.027 1.7 0.044 0.6 0.017 1.36 0.048 9.35 0.352 10.4 0.393 5.28 0.192 15.85 0.590 1.4 0.050 1.75 0.055 D C DETAIL”A” ...
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... The ST logo is a registered trademark of STMicroelectronics 1999 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com . L4940 series 13/13 ...