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LD2981 View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
LD2981 Ultra low-drop voltage regulators with inhibit STMICROELECTRONICS
STMicroelectronics STMICROELECTRONICS
LD2981 Datasheet PDF : 27 Pages
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List of figures
List of figures
LD2981
Figure 1: Schematic diagram ......................................................................................................................5
Figure 2: Pin connections (top view)...........................................................................................................6
Figure 3: Application circuit.........................................................................................................................8
Figure 4: Output voltage vs temperature ..................................................................................................12
Figure 5: Dropout voltage vs temperature ................................................................................................12
Figure 6: Line regulation vs temperature ..................................................................................................12
Figure 7: Load regulation vs temperature.................................................................................................12
Figure 8: Dropout voltage vs temperature ................................................................................................13
Figure 9: Quiescent current vs temperature .............................................................................................13
Figure 10: Quiescent current vs output current ........................................................................................13
Figure 11: Off mode quiescent current vs temperature ............................................................................13
Figure 12: Quiescent current vs input voltage ..........................................................................................13
Figure 13: Dropout voltage vs output current ...........................................................................................13
Figure 14: Inhibit input current vs temperature .........................................................................................14
Figure 15: Inhibit voltage vs temperature .................................................................................................14
Figure 16: Supply voltage rejection vs frequency .....................................................................................14
Figure 17: Noise voltage vs frequency .....................................................................................................14
Figure 18: Best case: highest output version ...........................................................................................14
Figure 19: Worst case: lowest output version...........................................................................................14
Figure 20: Load transient response ..........................................................................................................15
Figure 21: Line transient response ...........................................................................................................15
Figure 22: Reverse current test circuit ......................................................................................................17
Figure 23: SOT-89 package outline..........................................................................................................18
Figure 24: SOT-89 recommended footprint ..............................................................................................20
Figure 25: SOT-89 carrier tape outline .....................................................................................................21
Figure 26: SOT23-5L package outline......................................................................................................22
Figure 27: SOT23-5L recommended footprint ..........................................................................................23
Figure 28: SOT23-5L tape and reel outline ..............................................................................................24
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