l78l_v01 STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 40
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 Ammopak 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
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. Maturity status link L78L Positive voltage regulators L78L Datasheet DS0424 - Rev 28 - April 2021 For further information contact your local STMicroelectronics sales office.
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 internally to have pins 2, 3, 6 and 7 electrically
circuit board is available for heat-sinking. The external 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 - Refer to the test circuits, TJ = 0 to 125 °C, VI = 8.3 V, IO = 40 mA, CI = 0.33 Table 4. Electrical characteristics of L78L05C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 10 V, IO = 40 mA, CI = 0.33
Electrical characteristics
Table 5. Electrical characteristics of L78L08C - Refer to the test circuits, TJ = 0 to 125 °C,VI = 14 V, IO = 40 mA, CI = 0.33 Table 6. Electrical characteristics of L78L09C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 15 V, IO = 40 mA, CI = 0.33
Table 7. Electrical characteristics of L78L10C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 16 V, IO = 40 mA, CI = 0.33 Table 8. Electrical characteristics of L78L12C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 19 V, IO = 40 mA, CI = 0.33
Table 9. Electrical characteristics of L78L15C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 23 V, IO = 40 mA, CI = 0.33 Table 10. Electrical characteristics of L78L18C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 27 V, IO = 40 mA, CI =
Table 11. Electrical characteristics of L78L24C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 33 V, IO = 40 mA, CI = Table 12. Electrical characteristics of L78L33AB and L78L33AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
Table 13. Electrical characteristics of L78L05AB and L78L05AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 Table 14. Electrical characteristics of L78L06AB and L78L06AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 DS0424 - Rev 28 page 10/40
Table 15. Electrical characteristics of L78L08AB and L78L08AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 Table 16. Electrical characteristics of L78L09AB and L78L09AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 DS0424 - Rev 28 page 11/40
Table 17. Electrical characteristics of L78L10AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB), Table 18. Electrical characteristics of L78L12AB and L78L12AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 DS0424 - Rev 28 page 12/40
Table 19. Electrical characteristics of L78L15AB and L78L15AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 Table 20. Electrical characteristics of L78L18AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C DS0424 - Rev 28 page 13/40
Table 21. Electrical characteristics of L78L24AB and L78L24AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 DS0424 - Rev 28 page 14/40
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. output current
6 Typical application
Figure 13. High output current short-circuit protected Figure 14. Outuput boost circuit Figure 15. Current regulator
Figure 16. Adjustable output regulator
7 Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK 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 Table 22. TO-92 mechanical data
Package information
DS0424 - Rev 28 page 19/40
7.2 TO-92 packing information
Figure 18. TO-92 tape and reel outline
Table 23. TO-92 tape and reel mechanical data
7.3 TO-92 Ammopak packing information
Figure 19. TO-92 Ammopak tape and reel outline Table 24. TO-92 Ammopak 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 (dimensions are in mm)
7.5 SO-8 packing information
Figure 22. SO-8 tape and reel dimensions Figure 23. Tape orientation
Table 26. SO-8 tape and reel mechanical data
7.6 SOT-89 package information
Figure 24. SOT-89 package outline
Table 27. SOT-89 mechanical data
Figure 25. SOT-89 recommended footprint
7.7 SOT-89 packing information
Figure 26. SOT-89 carrier tape outline Figure 27. SOT-89 device orientation
Table 28. SOT-89 carrier tape mechanical data
Figure 28. SOT-89 reel drawing
8 Ordering information
Table 29. 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.
Ordering information
DS0424 - Rev 28 page 33/40
Table 30. Marking information DS0424 - Rev 28 page 34/40
Part numbers Marking Packages Output voltages L78L12ACUTR 8K SOT-89 12 V L78L12ACZ L78L12A TO-92 12 V L78L12ACZ-AP L78L12A TO-92 12 V L78L12ACZ-TR L78L12A TO-92 12 V L78L12CD13TR 78L12 SO-8 12 V L78L15ABUTR 8L SOT-89 15 V L78L15ABZ-AP L78L15A TO-92 15 V L78L15ACD13TR 78L15A SO-8 15 V L78L15ACUTR 8L SOT-89 15 V L78L15ACZ L78L15A TO-92 15 V L78L15CD-TR 78L15 SO-8 15 V L78L18ACUTR 8B SOT-89 18 V L78L18CD13TR L78L18 SO-8 18 V L78L24ABZ-TR L78L24A TO-92 24 V L78L24ACUTR 8P SOT-89 24 V L78L24ACZ-AP L78L24A TO-92 24 V L78L24CD-TR 78L24 SO-8 24 V L78L33ABD-TR 78L33B SO-8 3.3 V L78L33ABUTR 8A SOT-89 3.3 V L78L33ABZ-AP L78L33A TO-92 3.3 V L78L33ACD13TR 78L33A SO-8 3.3 V L78L33ACUTR 8A SOT-89 3.3 V L78L33ACZ L78L33A TO-92 3.3 V L78L33ACZ-AP L78L33A TO-92 3.3 V L78L33ACZTR L78L33A TO-92 3.3 V L78L DS0424 - Rev 28 page 35/40
Revision history
Table 31. 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. 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. Table 29: Marking information and Section 7: Package information. Added Section: Packing mechanical data. Updated Table 28: Order codes and Table 29: Marking information. Updated Table 29: Marking information. 13: "Electrical characteristics of L78L05AB and L78L05AC". 30-Nov-2020 27 Added Figure 27. SOT-89 device orientation. 07-Apr-2021 28 Added Figure 28. SOT-89 reel drawing.
Table 5. Electrical characteristics of L78L08C - Refer to the test circuits, TJ = 0 to 125 °C,VI = 14 V, IO = 40 mA, CI = 0.33 µF, Table 10. Electrical characteristics of L78L18C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 27 V, IO = 40 mA, CI = 0.33 Table 11. Electrical characteristics of L78L24C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 33 V, IO = 40 mA, CI = 0.33 Table 12. Electrical characteristics of L78L33AB and L78L33AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to Table 13. Electrical characteristics of L78L05AB and L78L05AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to Table 14. Electrical characteristics of L78L06AB and L78L06AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to Table 15. Electrical characteristics of L78L08AB and L78L08AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to Table 16. Electrical characteristics of L78L09AB and L78L09AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to Table 17. Electrical characteristics of L78L10AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB), VI= Table 18. Electrical characteristics of L78L12AB and L78L12AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to Table 19. Electrical characteristics of L78L15AB and L78L15AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to Table 20. Electrical characteristics of L78L18AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB),VI = Table 21. Electrical characteristics of L78L24AB and L78L24AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to