L78L STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 46
Technical content
Datasheet sections
- 1 Diagram
- 2 Pin configuration
- 3 Maximum ratings
- 4 Electrical characteristics
- 5 Typical performance
- 6 Typical application
- 7 Package information
- 7.1 TO-92 package information
- 7.2 TO-92 packing information
- 7.3 TO-92 Ammopack packing information
- 7.4 SO-8 package information
- 7.5 SO-8 packing information
- 7.6 SOT-89 package information
- 7.7 SOT-89 packing information
- 8 Ordering information
- 9 Revision history
Features
- Output current up to 100 mA
- Output voltages of 3.3; 5; 6; 8; 9; 10; 12; 15; 18;
24 V thermal overload protection
- Short-circuit protection
- No external components are required
- Available in either ± 4% (A) or ± 8% (C) selection
Description
The L78L series of three-terminal positive regulators employ internal current limiting and thermal shutdown, making them essentially indestructible. If adequate heat-sink is provided, they can deliver up to 100 mA output current. They are intended as fixed voltage regulators in a wide range of applications including local or on- card regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used with power pass elements to make high-current voltage regulators. The L78L series used as Zener diode/resistor combination replacement, offers e improvement along with lower quiescent current and lower noise. 627
1 Diagram
Figure 1. Schematic diagram
2 Pin configuration
Figure 2. Pin connection (top view, bottom view for TO-92) Figure 3. Test circuits
3 Maximum ratings
Table 1. Absolute maximum ratings
- Our SO-8 package used for voltage regulators is modified interna lly to have pins 2, 3, 6 and 7 electrically communed to the
dimensions are the same as for the standard SO-8. Table 2. Thermal data
- Considering 6 cm² of copper Board heat-sink.
4 Electrical characteristics
Table 3. Electrical characteristics of L78L33C
Table 4. Electrical characteristics of L78L05C
Table 5. Electrical characteristics of L78L08C
Table 6. Electrical characteristics of L78L09C
Table 7. Electrical characteristics of L78L10C
Table 8. Electrical characteristics of L78L12C
Table 9. Electrical characteristics of L78L15C
Table 10. Electrical characteristics of L78L18C
Table 11. Electrical characteristics of L78L24C
IO = 40mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 12. Electrical characteristics of L78L33AB and L78L33AC
IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 13. Electrical characteristics of L78L05AB and L78L05AC
IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 14. Electrical characteristics of L78L06AB and L78L06AC
IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 15. Electrical characteristics of L78L08AB and L78L08AC
IO= 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 16. Electrical characteristics of L78L09AB and L78L09AC
IO = 40mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 17. Electrical characteristics of L78L10AC
IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 18. Electrical characteristics of L78L12AB and L78L12AC
IO= 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 19. Electrical characteristics of L78L15AB and L78L15AC
IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 20. Electrical characteristics of L78L18AC
IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. Table 21. Electrical characteristics of L78L24AB and L78L24AC
5 Typical performance
Figure 4. L78L05/12 output voltage vs. ambient Figure 5. L78L05/12/24 load characteristics Figure 6. L78L05/12/24 thermal shutdown Figure 7. L78L05/12 quiescent current vs. Figure 8. L78L05 quiescent current vs. input Figure 9. L78L05/12/24 output characteristics
6 Typical application
Figure 13. High output current short-circuit protected Figure 14. Outuput boost circuit
7 Package information
specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark.
7.1 TO-92 package information
Figure 17. TO-92 package outline
7.2 TO-92 packing information
Figure 18. TO-92 tape and reel outline Table 22. TO-92 mechanical data
Table 23. TO-92 tape and reel mechanical data
7.3 TO-92 Ammopack packing information
Figure 19. TO-92 Ammopack tape and reel outline
Table 24. TO-92 Ammopack tape and reel mechanical data
7.4 SO-8 package information
Figure 20. SO-8 package outline
Table 25. SO-8 mechanical data
Figure 21. SO-8 recommended footprint
7.5 SO-8 packing information
Figure 22. SO-8 tape and reel outline Figure 23. SO-8 tape and reel mechanical data
7.6 SOT-89 package information
Figure 24. SOT-89 package outline
Table 26. SOT-89 mechanical data
Figure 25. SOT-89 recommended footprint
7.7 SOT-89 packing information
Figure 26. SOT-89 carrier tape outline Table 27. SOT-89 carrier tape dimensions
8 Ordering information
Table 28. Order codes
- Available in Ammopak with the suffix "-AP" or in tape and reel with the suffix "TR". Please note that in these cases pins are
shaped according to tape and reel specifications.
Table 29. Marking information
Table 29. Marking information (continued)
9 Revision history
Table 30. Document revision history 14-Mar-2005 9 Add tape and reel for TO-92. 15-Mar-2005 10 Add note on Table 3. 23-Dec-2005 11 Mistake on ordering Table in header. 12-Sep-2006 12 Order codes updated. 07-Jun-2007 13 Order codes updated. 18-Sep-2007 14 Added Table 1 in cover page. 15-Jul-2008 15 Modified: Table 1 and Table 28: Order codes. 18-Aug-2008 16 Modified Figure 12 on page 26. 03-Apr-2009 17 Added: RthJA value for SOT-89 Table 2 on page 5. 21-Feb-2012 19 Modified: SOT-89 Figure 2 on page 4. 14-Aug-2012 20 Updated TOP value for L78L00AC in Table 1 on page 5. 07-Sep-2012 21 Added: Table 29: Marking information. Part numbers L78LxxAB, L78LxxAC, L78LxxC changed to L78L. Removed Table1: Device summary. Added Section: Packing mechanical data. 06-Oct-2014 23 Updated Table 28: Order codes and Table 29: Marking information. 10-Feb-2015 24 Updated Table 29: Marking information.