L4921 STMicroelectronics, L4921 Datasheet
L4921
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L4921 Summary of contents
Page 1
... PROTECTION SHORT CIRCUIT PROTECTION WITH FOLD- . BACK CHARACTERISTICS THERMAL SHUT-DOWN DESCRIPTION The L4920 and L4921 are adjustable voltage regu- lators with a verylow voltage drop (0.4V typ C), low quiescent current and comprehen- j sive on-chip protection. Thesedevices are protectedagainst load dump and field decay transients, polarity reversal and over heating ...
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... L4920/L4921 ABSOLUTE MAXIMUM RATINGS Symbol V DC Input Operating Voltage i DC Reverse Input Voltage Transient Input Overvoltages: Load Dump: 5ms t 10ms rise Fall time constant = 100ms f R 0.5 SOURCE Field Decay: 5ms t 10ms, R fall SOURCE Rise time constant = 33ms Junction and Storage Temperature Range ...
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... 1.2V < V < 26V 5mA O 5mA I 400mA (*) V 4. 150mA 400mA 0mA 1.2V < V <26V 400mA (*) 1.2V < V <26V O I L4920/L4921 Typ. Max. Unit 1. mV/V 0.05 V 0.2 0.4 V 0.4 0 800 mA 350 500 100 F, unless O O Typ. ...
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... L4920/L4921 Figure 1 : Output Voltage vs. Temperature. Figure 3 : Quiescent Current vs. Output Current (V = 5V). o APPLICATION INFORMATION 1) The L4920 and L4921 have V REF the output voltage can be set down must be greater than 5. C the regulator reference voltage source works in closed loop, the reference voltage may change in foldbackcondition ...
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... B1 0.91 1.04 0.036 b 0.5 0.020 b1 0.38 0.5 0.015 D 9.8 E 8.8 0.346 e 2.54 0.100 e3 7.62 0.300 e4 7.62 0.300 F 7.1 I 4.8 L 3.3 0.130 Z 0.44 1.6 0.017 OUTLINE AND MAX. MECHANICAL DATA 0.065 0.041 0.020 0.386 0.280 0.189 PowerMinidip 0.063 L4920/L4921 5/7 ...
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... L4920/L4921 mm DIM. MIN. TYP. MAX. MIN. A 4.8 C 1.37 D 2.4 2.8 0.094 D1 1.2 1.35 0.047 E 0.35 0.55 0.014 E1 0.76 1.19 0.030 F 0.8 1.05 0.031 F1 1 1.4 0.039 G 3.2 3.4 3.6 0.126 G1 6.6 6.8 7 0.260 H2 10.4 H3 10.05 10.4 0.396 L 17.55 17.85 18.15 0.691 L1 15 ...
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... The ST logo is a registered trademark of STMicroelectronics 2000 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 L4920/L4921 7/7 ...