Datasheet

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This is information on a product in full production.

April 2013 DocID2146 Rev 19 1/30

L78MxxC

Positive voltage regulators

Datasheet - production data

Features

 Output current to 0.5 A

 Output voltages of 5; 6; 8; 9; 12; 15; 24 V

 Thermal overload protection

 Short circuit protection

 Output transition SOA protection

Description

The L78MxxC 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 shutdown 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.

TO-220FPTO-220

DPAK IPAK

Table 1. Device summary

Part numbers

Order codes

Output

voltages

TO-220 TO-220

(1)

TO-220FP DPAK IPAK

L78M05C L78M05CV L78M05CV-DG L78M05CP L78M05CDT-TR L78M05CDT-1 5 V

L78M06C L78M06CDT-TR 6 V

L78M08C L78M08CV L78M08CV-DG L78M08CDT-TR 8 V

L78M09C L78M09CV L78M09CV-DG L78M09CDT-TR 9 V

L78M12C L78M12CV L78M12CV-DG L78M12CDT-TR 12 V

L78M15C L78M15CV L78M15CV-DG L78M15CDT-TR 15 V

L78M24C L78M24CV L78M24CV-DG L78M24CDT-TR 24 V

1. TO-220 Dual Gauge frame

www.st.com

Summary of content (30 pages)

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L78MxxC Positive voltage regulators Datasheet - production data Description TO-220 The L78MxxC 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.
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Contents L78MxxC Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics .
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L78MxxC 1 Diagram Diagram Figure 1.
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Pin configuration 2 L78MxxC Pin configuration Figure 2. Pin connections (top view) TO-220 TO220FP DPAK IPAK Figure 3.
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L78MxxC 3 Maximum ratings Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value for VO = 5 to 18 V 35 for VO = 20, 24 V 40 Unit VI DC input voltage IO Output current Internally limited mA PD Power dissipation Internally limited mW - 65 to 150 °C 0 to 150 °C TSTG Storage temperature range TOP Operating junction temperature range Note: V Absolute maximum ratings are those values beyond which damage to the device may occur.
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Test circuits 4 L78MxxC Test circuits Figure 5. DC parameter Figure 6. Load regulation Figure 7.
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L78MxxC 5 Electrical characteristics Electrical characteristics Refer to the test circuits, TJ = 25 °C, VI = 10 V, IO = 350 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 4. Electrical characteristics of L78M05C Symbol Parameter VO Output voltage VO Output voltage VO Line regulation VO Load regulation Id Id VO/T Test conditions IO = 5 to 350 mA, VI = 7 to 20 V Typ. Max. Unit 4.8 5 5.2 V 4.75 5 5.
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Electrical characteristics L78MxxC Refer to the test circuits, TJ = 25 °C, VI = 11 V, IO = 350 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 5. Electrical characteristics of L78M06C Symbol Parameter VO Output voltage VO Output voltage VO Line regulation VO Load regulation Id Id VO/T Test conditions IO = 5 to 350 mA, VI = 8 to 21 V Typ. Max. Unit 5.75 6 6.25 V 5.7 6 6.
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L78MxxC Electrical characteristics Refer to the test circuits, TJ = 25 °C, VI = 15 V, IO = 350 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 7. Electrical characteristics of L78M09C Symbol Parameter VO Output voltage VO Output voltage VO Line regulation VO Load regulation Id Id VO/T Test conditions IO = 5 to 350 mA, VI = 11.5 to 24 V Typ. Max. Unit 8.65 9 9.35 V 8.55 9 9.45 V VI = 11.
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Electrical characteristics L78MxxC Refer to the test circuits, TJ = 25 °C, VI = 23 V, IO = 350 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 9. Electrical characteristics of L78M15C Symbol Parameter VO Output voltage VO Output voltage VO Line regulation VO Load regulation Id Id VO/T Test conditions IO = 5 to 350 mA, VI = 17.5 to 30 V Typ. Max. Unit 14.4 15 15.6 V 14.25 15 15.75 V VI = 17.
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L78MxxC 6 Typical performance Typical performance Figure 8. Dropout voltage vs. junction temp. Figure 9. Dropout characteristics Figure 10. Peak output current vs. input-output differential voltage Figure 11. Output voltage vs. junction temperature Figure 12. Supply voltage rejection vs. frequency Figure 13. Quiescent current vs.
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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.
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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.
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Typical performance L78MxxC Figure 21. 0.5 to 10 V regulator VO=VXXR4/R1 Figure 22. High current voltage regulator VBEQ1 R1 = ______________ IREQ-(IQ1/bQ1) VBEQ1 IO = IREG + Q1 (IREG ______) R1 Figure 23.
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L78MxxC Typical performance Figure 24. Tracking voltage regulator Figure 25. High input voltage circuit VIN = VI - (VZ + VBE) Figure 26.
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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: 16/30 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.
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L78MxxC 7 Package mechanical data Package mechanical data 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. Table 11. TO-220 mechanical data Type STD - ST Dual Gauge Type STD - ST Single Gauge mm. mm. Dim. Min. Typ. Max. Min. Typ. Max. A 4.40 4.60 4.40 4.
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Package mechanical data L78MxxC Figure 29. Drawing dimension TO-220 (type STD-ST Dual Gauge) 0015988_S Note: 18/30 1 Maximum resin gate protrusion: 0.5 mm. 2 Resin gate position is accepted in each of the two positions shown on the drawing, or their symmetrical.
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L78MxxC Package mechanical data Figure 30.
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Package mechanical data L78MxxC Figure 31. Drawing dimension tube for TO-220 Dual Gauge (mm.) Figure 32. Drawing dimension tube for TO-220 Single Gauge (mm.
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L78MxxC Package mechanical data TO-220FP mechanical data Dim. mm. Min. Typ inch. Max. Min. Typ. Max. A 4.40 4.60 0.173 0.181 B 2.5 2.7 0.098 0.106 D 2.5 2.75 0.098 0.108 E 0.45 0.70 0.017 0.027 F 0.75 1 0.030 0.039 F1 1.15 1.50 0.045 0.059 F2 1.15 1.50 0.045 0.059 G 4.95 5.2 0.194 0.204 G1 2.4 2.7 0.094 0.106 H 10.0 10.40 0.393 L2 L3 16 0.409 0.630 28.6 30.6 1.126 1.204 L4 9.8 10.6 0.385 0.417 L5 2.9 3.6 0.114 0.142 L6 15.9 16.
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Package mechanical data L78MxxC Figure 33. Drawing dimension DPAK (type STD-ST) 0068772/G Note: 22/30 1 Max resin gate protrusion: 0.5 mm. 2 Max resin protrusion: 0.25 mm.
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L78MxxC Package mechanical data Figure 34. Drawing dimension DPAK (type FUJITSU-subcon.
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Package mechanical data L78MxxC Figure 35. Drawing dimension DPAK (type IDS-subcon.
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L78MxxC Package mechanical data Table 12. DPAK mechanical data Dim. Min. Type STD-ST Type FUJITSU-Subcon. Type IDS-Subcon mm. mm. mm. Typ. Max. Min. Typ. Max. Min. Typ. Max. 2.30 2.35 2.19 2.38 A 2.20 2.40 2.25 A1 0.90 1.10 0.96 1.06 0.89 1.14 A2 0.03 0.23 0 0.10 0.03 0.23 b 0.64 0.90 0.76 0.86 0.64 0.88 b4 5.20 5.40 5.28 5.38 5.21 5.46 c 0.45 0.60 0.46 0.56 0.46 0.58 c2 0.48 0.60 0.46 0.56 0.46 0.58 D 6.00 6.20 6.05 6.15 5.97 6.
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Package mechanical data L78MxxC Figure 36. DPAK footprint recommended data Table 13. Footprint data Values 26/30 Dim. mm. inch. A 6.70 0.264 B 6.70 0.64 C 1.8 0.070 D 3.0 0.118 E 1.60 0.063 F 2.30 0.091 G 2.30 0.
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L78MxxC Package mechanical data IPAK mechanical data mm. inch. Dim. Min. Max. Min. 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 B 0.64 0.9 0.025 0.035 B2 5.2 5.4 0.204 0.212 A Typ. B3 Typ. 0.95 B5 0.037 0.3 B6 Max. 0.012 0.95 0.037 C 0.45 0.6 0.017 0.023 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 0.244 E 6.4 6.6 0.252 0.260 G 4.4 4.6 0.173 0.181 H 15.9 16.3 0.626 0.641 L 9 9.4 0.354 0.370 L1 0.8 1.2 0.031 0.047 L2 0.8 1 0.031 0.
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Package mechanical data L78MxxC Tape & reel DPAK-PPAK mechanical data mm. inch. Dim. Min. Typ. A Min. Typ. 330 13.0 13.2 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 28/30 Max. 0.504 0.512 22.4 0.519 0.882 Ao 6.80 6.90 7.00 0.268 0.272 0.2.76 Bo 10.40 10.50 10.60 0.409 0.413 0.417 Ko 2.55 2.65 2.75 0.100 0.104 0.105 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.
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L78MxxC 8 Revision history Revision history Table 14. Document revision history Date Revision Changes 21-Jun-2004 6 Document updating. 30-Aug-2006 7 Order codes updated. 29-Nov-2006 8 DPAK mechanical data updated and add footprint data. 06-Jun-2007 9 Order codes updated. 10-Dec-2007 10 Added Table 1. 19-Feb-2008 11 Modified: Table 1 on page 1. 15-Jul-2008 12 Modified: Table 1 on page 1 and Table 14 on page 29.
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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.