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| L78MXXC Positive voltage regulators Features Output current to 0.5 A Output voltages of 5; 6; 8; 9; 12; 15; 18; 24 V Thermal overload protection Short circuit protection Output transition SOA protection TO-220 TO-220FP Description The L78Mxx series of three-terminal positive regulators is available in TO-220, TO-220FP, DPAK and IPAK packages and with several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 0.5 A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. DPAK IPAK Table 1. Device summary Part numbers L78M05C L78M06C L78M08C L78M09C L78M12C L78M15C L78M18C L78M24C Rev 11 1/29 www.st.com 29 February 2008 Contents L78MXXC Contents 1 2 3 4 5 6 7 8 9 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Test circuits ............................................... 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2/29 L78MXXC Diagram 1 Figure 1. Diagram Block diagram 3/29 Pin configuration L78MXXC 2 Figure 2. Pin configuration Pin connections (top view) TO-220 TO220FP DPAK IPAK Figure 3. Schematic diagram 4/29 L78MXXC Maximum ratings 3 Table 2. Symbol VI IO PD TSTG TOP Maximum ratings Absolute maximum ratings Parameter DC input voltage Output current Power dissipation Storage temperature range Operating junction temperature range for VO= 5 to 18V for VO= 20, 24V Value 35 V 40 Internally limited Internally limited -65 to 150 0 to 150 mA mW C C Unit Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Thermal data Parameter Thermal resistance junction-case Thermal resistance junction-ambient TO-220 3 50 TO-220FP 5 60 DPAK 8 100 IPAK Unit C/W C/W Table 3. Symbol RthJC RthJA Figure 4. Application circuits 5/29 Test circuits L78MXXC 4 Figure 5. Test circuits DC parameter Figure 6. Load regulation Figure 7. Ripple rejection 6/29 L78MXXC Electrical characteristics 5 Table 4. Symbol VO VO VO VO Id Id VO/T SVR eN Vd Isc Electrical characteristics Electrical characteristics of L78M05C (refer to the test circuits, TJ = 25 C, VI = 10 V, IO = 350 mA, CI = 0.33 F, CO = 0.1 F unless otherwise specified) Parameter Output voltage Output voltage Line regulation IO = 5 to 350 mA, VI = 7 to 20 V VI = 7 to 25 V, IO = 200 mA VI = 8 to 25 V, IO = 200 mA Load regulation Quiescent current Quiescent current change Output voltage drift Supply voltage rejection Output noise voltage Dropout voltage Short circuit current VI = 35 V IO = 5 to 350 mA IO = 200 mA, VI = 8 to 25 V IO = 5 mA, TJ = 0 to 125C VI = 8 to 18 V, f = 120Hz, IO = 300mA B =10Hz to 100kHz 62 40 2 300 -0.5 IO = 5 to 500 mA, TJ = 25C IO = 5 to 200 mA, TJ = 25C Test conditions Min. 4.8 4.75 Typ. 5 5 Max. 5.2 5.25 100 mV 50 100 mV 50 6 0.5 mA 0.8 mV/C dB V V mA mA Unit V V Table 5. Symbol VO VO VO VO Id Id VO/T SVR eN Vd Isc Electrical characteristics of L78M06C (refer to the test circuits, TJ = 25 C, VI = 11 V, IO = 350 mA, CI = 0.33 F, CO = 0.1 F unless otherwise specified) Parameter Output voltage Output voltage Line regulation IO = 5 to 350 mA, VI = 8 to 21 V VI = 8 to 25 V, IO = 200 mA VI = 9 to 25 V, IO = 200 mA Load regulation Quiescent current Quiescent current change Output voltage drift Supply voltage rejection Output noise voltage Dropout voltage Short circuit current VI = 35 V IO = 5 to 350 mA IO = 200 mA, VI = 9 to 25 V IO = 5 mA, TJ = 0 to 125C VI = 9 to 19 V, f = 120Hz, IO = 300mA B =10Hz to 100kHz 59 45 2 270 -0.5 IO = 5 to 500 mA, TJ = 25C IO = 5 to 200 mA, TJ = 25C Test conditions Min. 5.75 5.7 Typ. 6 6 Max. 6.25 6.3 100 mV 50 120 mV 60 6 0.5 mA 0.8 mV/C dB V V mA mA Unit V V 7/29 Electrical characteristics L78MXXC Table 6. Symbol VO VO VO VO Id Id VO/T SVR eN Vd Isc Electrical characteristics of L78M08C (refer to the test circuits, TJ = 25 C, VI = 14 V, IO = 350 mA, CI = 0.33 F, CO = 0.1 F unless otherwise specified) Parameter Output voltage Output voltage Line regulation IO = 5 to 350 mA, VI = 10.5 to 23 V VI = 10.5 to 25 V, IO = 200 mA VI = 11 to 25 V, IO = 200 mA Load regulation Quiescent current Quiescent current change Output voltage drift Supply voltage rejection Output noise voltage Dropout voltage Short circuit current VI = 35 V IO = 5 to 350 mA IO = 200 mA, VI = 10.5 to 25 V IO = 5 mA, TJ = 0 to 125C VI = 11.5 to 21.5 V, f = 120Hz, IO = 300mA B =10Hz to 100kHz 56 52 2 250 -0.5 IO = 5 to 500 mA, TJ = 25C IO = 5 to 200 mA, TJ = 25C Test conditions Min. 7.7 7.6 Typ. 8 8 Max. 8.3 8.4 100 mV 50 160 mV 80 6 0.5 mA 0.8 mV/C dB V V mA mA Unit V V Table 7. Symbol VO VO VO VO Id Id VO/T SVR eN Vd Isc Electrical characteristics of L78M09C (refer to the test circuits, TJ = 25 C, VI = 15 V, IO = 350 mA, CI = 0.33 F, CO = 0.1 F unless otherwise specified) Parameter Output voltage Output voltage Line regulation IO = 5 to 350 mA, VI = 11.5 to 24 V VI = 11.5 to 25 V, IO = 200 mA VI = 12 to 25 V, IO = 200 mA Load regulation Quiescent current Quiescent current change Output voltage drift Supply voltage rejection Output noise voltage Dropout voltage Short circuit current VI = 35 V IO = 5 to 350 mA IO = 200 mA, VI = 11.5 to 25 V IO = 5 mA, TJ = 0 to 125C VI = 12.5 to 23 V, f = 120Hz, IO = 300mA B =10Hz to 100kHz 56 58 2 250 -0.5 IO = 5 to 500 mA, TJ = 25C IO = 5 to 200 mA, TJ = 25C Test conditions Min. 8.65 8.55 Typ. 9 9 Max. 9.35 9.45 100 mV 50 180 mV 90 6 0.5 mA 0.8 mV/C dB V V mA mA Unit V V 8/29 L78MXXC Electrical characteristics Table 8. Symbol VO VO VO VO Id Id VO/T SVR eN Vd Isc Electrical characteristics of L78M12C (refer to the test circuits, TJ = 25 C, VI = 19 V, IO = 350 mA, CI = 0.33 F, CO = 0.1 F unless otherwise specified) Parameter Output voltage Output voltage Line regulation IO = 5 to 350 mA, VI = 14.5 to 27 V VI = 14.5 to 30 V, IO = 200 mA VI = 16 to 30 V, IO = 200 mA Load regulation Quiescent current Quiescent current change Output voltage drift Supply voltage rejection Output noise voltage Dropout voltage Short circuit current VI = 35 V IO = 5 to 350 mA IO = 200 mA, VI = 14.5 to 30 V IO = 5 mA, TJ = 0 to 125C VI = 15 to 25 V, f = 120Hz, IO = 300mA B =10Hz to 100kHz 55 75 2 240 -1 IO = 5 to 500 mA, TJ = 25C IO = 5 to 200 mA, TJ = 25C Test conditions Min. 11.5 11.4 Typ. 12 12 Max. 12.5 12.6 100 mV 50 240 mV 120 6 0.5 mA 0.8 mV/C dB V V mA mA Unit V V Table 9. Symbol VO VO VO VO Id Id VO/T SVR eN Vd Isc Electrical characteristics of L78M15C (refer to the test circuits, TJ = 25 C, VI = 23 V, IO = 350 mA, CI = 0.33 F, CO = 0.1 F unless otherwise specified) Parameter Output voltage Output voltage Line regulation IO = 5 to 350 mA, VI = 17.5 to 30 V VI = 17.5 to 30 V, IO = 200 mA VI = 20 to 30 V, IO = 200 mA Load regulation Quiescent current Quiescent current change Output voltage drift Supply voltage rejection Output noise voltage Dropout voltage Short circuit current VI = 35 V IO = 5 to 350 mA IO = 200 mA, VI = 17.5 to 30 V IO = 5 mA, TJ = 0 to 125C VI = 18.5 to 28.5 V, f = 120Hz, IO = 300mA B =10Hz to 100kHz 54 90 2 240 -1 IO = 5 to 500 mA, TJ = 25C IO = 5 to 200 mA, TJ = 25C Test conditions Min. 14.4 14.25 Typ. 15 15 Max. 15.6 15.75 100 mV 50 300 mV 150 6 0.5 mA 0.8 mV/C dB V V mA mA Unit V V 9/29 Electrical characteristics L78MXXC Table 10. Symbol VO VO VO VO Id Id VO/T SVR eN Vd Isc Electrical characteristics of L78M18C (refer to the test circuits, TJ = 25 C, VI = 26 V, IO = 350 mA, CI = 0.33 F, CO = 0.1 F unless otherwise specified) Parameter Output voltage Output voltage Line regulation IO = 5 to 350 mA, VI = 20.5 to 33 V VI = 21 to 33 V, IO = 200 mA VI = 24 to 33 V, IO = 200 mA Load regulation Quiescent current Quiescent current change Output voltage drift Supply voltage rejection Output noise voltage Dropout voltage Short circuit current VI = 35 V IO = 5 to 350 mA IO = 200 mA, VI = 21 to 33 V IO = 5 mA, TJ = 0 to 125C VI = 22 to 32 V, f = 120Hz, IO = 300mA B =10Hz to 100kHz 53 100 2 240 -1.1 IO = 5 to 500 mA, TJ = 25C IO = 5 to 200 mA, TJ = 25C Test conditions Min. 17.3 17.1 Typ. 18 18 Max. 18.7 18.9 100 mV 50 360 mV 180 6 0.5 mA 0.8 mV/C dB V V mA mA Unit V V Table 11. Symbol VO VO VO VO Id Id VO/T SVR eN Vd Isc Electrical characteristics of L78M24C (refer to the test circuits, TJ = 25 C, VI = 23 V, IO = 350 mA, CI = 0.33 F, CO = 0.1 F unless otherwise specified) Parameter Output voltage Output voltage Line regulation IO = 5 to 350 mA, VI = 27 to 38 V VI = 27 to 38 V, IO = 200 mA VI = 28 to 38 V, IO = 200 mA Load regulation Quiescent current Quiescent current change Output voltage drift Supply voltage rejection Output noise voltage Dropout voltage Short circuit current VI = 35 V IO = 5 to 350 mA IO = 200 mA, VI = 27 to 38 V IO = 5 mA, TJ = 0 to 125C VI = 28 to 38 V, f = 120Hz, IO = 300mA B =10Hz to 100kHz 50 170 2 240 -1.2 IO = 5 to 500 mA, TJ = 25C IO = 5 to 200 mA, TJ = 25C Test conditions Min. 23 22.8 Typ. 24 24 Max. 25 25.2 100 mV 50 480 mV 240 6 0.5 mA 0.8 mV/C dB V V mA mA Unit V V 10/29 L78MXXC Typical performance 6 Figure 8. Typical performance Dropout voltage vs junction temp. Figure 9. Dropout characteristics Figure 10. Peak output current vs input-output Figure 11. Output voltage vs junction differential voltage temperature Figure 12. Supply voltage rejection vs freq. Figure 13. Quiescent current vs junction temp. 11/29 Typical performance L78MXXC Figure 14. Load transient response Figure 15. Line transient response Figure 16. Quiescent current vs input voltage Figure 17. Fixed output regulator 1. To specify an output voltage, substitute voltage value for "XX". 2. Although no output capacitor is need for stability, it does improve transient response. 3. Required if regulator is locate an appreciable distance from power supply filter. 12/29 L78MXXC Typical performance Figure 18. Constant current regulator IO = VXX/R1+Id Figure 19. Circuit for increasing output voltage IR1 5 Id VO = VXX(1+R2/R1)+IdR2 Figure 20. Adjustable output regulator (7 to 30 V) 13/29 Typical performance L78MXXC Figure 21. 0.5 to 10 V regulator VO=VXXR4/R1 Figure 22. High current voltage regulator VBEQ1 R1 = ______________ IREQ-(IQ1/Q1) VBEQ1 IO = IREG + Q1 (IREG ______) R1 Figure 23. High output current with short circuit protection RSC=VBEQ2/ISC 14/29 L78MXXC Typical performance Figure 24. Tracking voltage regulator Figure 25. High input voltage circuit VIN = VI - (VZ + VBE) Figure 26. Reducing power dissipation with dropping resistor VI(min)-VXX-VDROP(max) R = ____________________ IO(max)+Id(max) 15/29 Typical performance L78MXXC Figure 27. Power AM modulator (unity voltage gain, IO 0.5) Note: The circuit performs well up to 100 kHz. Figure 28. Adjustable output voltage with temperature compensation VO = VXX (1+R2/R1) + VBE Note: Q2 is connected as a diode in order to compensate the variation of the Q1 VBE with the temperature. C allows a slow rise time of the VO. 16/29 L78MXXC Package mechanical data 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 17/29 Package mechanical data L78MXXC TO-220 mechanical data Dim. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.25 6.2 3.5 3.75 0.49 0.61 1.14 1.14 4.95 2.4 10.0 16.4 14.0 2.95 15.75 6.6 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147 mm. Min. 4.40 1.23 2.40 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 0.645 0.551 0.116 0.620 0.260 0.154 0.151 Typ. Max. 4.60 1.32 2.72 Min. 0.173 0.048 0.094 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 inch. Typ. Max. 0.181 0.051 0.107 P011C 18/29 L78MXXC Package mechanical data TO-220FP mechanical data Dim. A B D E F F1 F2 G G1 H L2 L3 L4 L5 L6 L7 DIA. 28.6 9.8 2.9 15.9 9 3 mm. Min. 4.40 2.5 2.5 0.45 0.75 1.15 1.15 4.95 2.4 10.0 16 30.6 10.6 3.6 16.4 9.3 3.2 1.126 0.385 0.114 0.626 0.354 0.118 Typ Max. 4.60 2.7 2.75 0.70 1 1.50 1.50 5.2 2.7 10.40 Min. 0.173 0.098 0.098 0.017 0.030 0.045 0.045 0.194 0.094 0.393 0.630 1.204 0.417 0.142 0.645 0.366 0.126 inch. Typ. Max. 0.181 0.106 0.108 0.027 0.039 0.059 0.059 0.204 0.106 0.409 7012510A-H 19/29 Package mechanical data L78MXXC Figure 29. Drawing dimension DPAK (type STD-ST) 0068772/G 20/29 L78MXXC Package mechanical data Figure 30. Drawing dimension DPAK (type FUJITSU-subcon.) 0068772/G 21/29 Package mechanical data L78MXXC Figure 31. Drawing dimension DPAK (type IDS-subcon.) 0068772/G 22/29 L78MXXC Package mechanical data Table 12. DPAK mechanical data Type STD-ST Type FUJITSU-SUBCON. mm. Max. 2.40 1.10 0.23 0.90 5.40 0.60 0.60 6.20 5.10 6.40 4.70 2.28 4.40 9.35 1.00 2.80 0.80 0.60 0.20 0 8 0 1.00 1.03 0.70 0.40 8 0 1.13 0.90 4.60 10.10 9.90 1.40 10.30 1.60 2.23 6.60 Min. 2.25 0.96 0 0.76 5.28 0.46 0.46 6.05 5.27 6.55 6.60 4.77 2.28 2.33 4.51 9.40 0.90 2.50 0.89 0.64 0.20 8 2.65 1.27 1.02 Typ. 2.30 Max. 2.35 1.06 0.10 0.86 5.38 0.56 0.56 6.15 5.47 6.65 6.35 4.70 2.28 4.61 10.42 Min. 2.19 0.89 0.03 0.64 5.21 0.46 0.46 5.97 5.20 6.73 Type IDS-SUBCON mm. Typ. Max. 2.38 1.14 0.23 0.88 5.46 0.58 0.58 6.22 Dim. Min. A A1 A2 b b4 c c2 D D1 E E1 e e1 H L L1 L2 L4 R V2 2.20 0.90 0.03 0.64 5.20 0.45 0.48 6.00 mm. Typ. Note: The DPAK package coming from the two subcontractors (Fujitsu and IDS) are fully compatible with the ST's package suggested footprint. 23/29 Package mechanical data L78MXXC Figure 32. DPAK footprint recommended data Table 13. Footprint data Values Dim. A B C D E F G mm. 6.70 6.70 1.8 3.0 1.60 2.30 2.30 inch. 0.264 0.64 0.070 0.118 0.063 0.091 0.091 24/29 L78MXXC Package mechanical data IPAK mechanical data mm. Dim. Min. A A1 B B2 B3 B5 B6 C C2 D E G H L L1 L2 0.45 0.48 6 6.4 4.4 15.9 9 0.8 0.8 0.3 0.95 0.6 0.6 6.2 6.6 4.6 16.3 9.4 1.2 1 0.017 0.019 0.236 0.252 0.173 0.626 0.354 0.031 0.031 2.2 0.9 0.64 5.2 Typ. Max. 2.4 1.1 0.9 5.4 0.95 0.012 0.037 0.023 0.023 0.244 0.260 0.181 0.641 0.370 0.047 0.039 Min. 0.086 0.035 0.025 0.204 Typ. Max. 0.094 0.043 0.035 0.212 0.037 inch. 0068771-F 25/29 Package mechanical data L78MXXC Tape & reel DPAK-PPAK mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 6.80 10.40 2.55 3.9 7.9 6.90 10.50 2.65 4.0 8.0 12.8 20.2 60 22.4 7.00 10.60 2.75 4.1 8.1 0.268 0.409 0.100 0.153 0.311 0.272 0.413 0.104 0.157 0.315 13.0 Typ. Max. 330 13.2 0.504 0.795 2.362 0.882 0.2.76 0.417 0.105 0.161 0.319 0.512 Min. Typ. Max. 12.992 0.519 inch. 26/29 L78MXXC Order codes 8 Table 14. Order codes Order codes Packages TO-220 L78M05CV TO-220FP L78M05CP DPAK L78M05CDT-TR L78M06CDT-TR L78M08CV L78M09CV L78M12CV L78M15CV L78M09CP L78M08CDT-TR L78M09CDT-TR L78M12CDT-TR L78M15CDT-TR L78M18CDT-TR L78M24CV L78M24CP (1) IPAK L78M05CDT-1 L78M06CDT-1 L78M08CDT-1 L78M09CDT-1 (1) (1) (1) Output voltage 5V 6V 8V 9V 12 V 15 V 18 V L78M24CDT-TR L78M24CDT-1 (1) 24 V 1. Available on request 27/29 Revision history L78MXXC 9 Table 15. Date Revision history Document revision history Revision 6 7 8 9 10 11 Document updating. Order codes has been updated and new template. DPAK mechanical data has been updated and add footprint data. Order codes has been updated. Added Table 1. Modified: Table 1 on page 1. Changes 21-Jun-2004 30-Aug-2006 29-Nov-2006 06-Jun-2007 10-Dec-2007 19-Feb-2008 28/29 L78MXXC Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. 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