L78S18CT STMicroelectronics, L78S18CT Datasheet
L78S18CT
Specifications of L78S18CT
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L78S18CT Summary of contents
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Features ■ Output current ■ Output voltages of 5; 7.5; 9; 10; 12; 15; 18 ■ Thermal overload protection ■ Short circuit protection ■ Output transition SOA protection Description The L78Sxx series of three-terminal positive ...
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Contents Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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L78Sxx, L78SxxC List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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L78Sxx, L78SxxC 1 Diagram Figure 1. Block diagram Doc ID 2148 Rev 4 Diagram 5/39 ...
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Pin configuration 2 Pin configuration Figure 2. Pin connections (top view) TO-220 Figure 3. Schematic diagram 6/39 Doc ID 2148 Rev 4 L78Sxx, L78SxxC TO-3 ...
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L78Sxx, L78SxxC 3 Maximum ratings Table 2. Absolute maximum ratings Symbol V DC input voltage I I Output current O P Power dissipation D T Storage temperature range STG T Operating junction temperature range OP Note: Absolute maximum ratings are ...
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Test circuits 4 Test circuits Figure 5. DC parameter Figure 6. Load regulation Figure 7. Ripple rejection 8/39 Doc ID 2148 Rev 4 L78Sxx, L78SxxC ...
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L78Sxx, L78SxxC 5 Electrical characteristics Refer to the test circuits, T Table 4. Electrical characteristics of L78S05 Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI ...
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Electrical characteristics Refer to the test circuits, T Table 5. Electrical characteristics of L78S75 Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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L78Sxx, L78SxxC Refer to the test circuits, T Table 7. Electrical characteristics of L78S10 Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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Electrical characteristics Refer to the test circuits, T Table 9. Electrical characteristics of L78S15 Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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L78Sxx, L78SxxC Refer to the test circuits, T Table 11. Electrical characteristics of L78S24 Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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Electrical characteristics Refer to the test circuits, T Table 12. Electrical characteristics of L78S05C Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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L78Sxx, L78SxxC Refer to the test circuits, T Table 13. Electrical characteristics of L78S75C Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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Electrical characteristics Refer to the test circuits, T Table 14. Electrical characteristics of L78S09C Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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L78Sxx, L78SxxC Refer to the test circuits, T Table 15. Electrical characteristics of L78S10C Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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Electrical characteristics Refer to the test circuits, T Table 16. Electrical characteristics of L78S12C Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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L78Sxx, L78SxxC Refer to the test circuits, T Table 17. Electrical characteristics of L78S15C Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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Electrical characteristics Refer to the test circuits, T Table 18. Electrical characteristics of L78S18C Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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L78Sxx, L78SxxC Refer to the test circuits, T Table 19. Electrical characteristics of L78S24C Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O I Quiescent current Q ΔI Quiescent current change ...
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Typical performance 6 Typical performance Figure 8. Dropout voltage vs. junction temperature Figure 10. Output impedance vs. frequency Figure 12. Supply voltage rejection vs. frequency 22/39 Figure 9. Peak output current vs. input/output differential voltage Figure 11. Output voltage vs. ...
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L78Sxx, L78SxxC Figure 14. Load 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 ...
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Typical performance Figure 18. Constant current regulator Figure 19. Circuit for increasing output voltage ≥ (1 ...
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L78Sxx, L78SxxC Figure 21. 0 regulator Figure 22. High current voltage regulator V BEQ1 R = ______________ REQ BEQ1 I = ...
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Typical performance Figure 24. Tracking voltage regulator Figure 25. Positive and negative regulator 26/39 Doc ID 2148 Rev 4 L78Sxx, L78SxxC ...
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L78Sxx, L78SxxC Figure 26. Negative output voltage circuit Figure 27. Switching regulator Figure 28. High input voltage circuit Doc ID 2148 Rev 4 Typical performance 27/39 ...
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Typical performance Figure 29. High input voltage circuit Figure 30. High output voltage regulator Figure 31. High input and output voltage 28/39 Doc ID 2148 Rev 4 L78Sxx, L78SxxC ...
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L78Sxx, L78SxxC Figure 32. Reducing power dissipation with dropping resistor I(min) XX DROP(max ____________________ I +I O(max) d(max) Figure 33. Remote shutdown Figure 34. Power AM modulator (unity voltage gain, I Note: The circuit performs ...
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Typical performance Figure 35. Adjustable output voltage with temperature compensation (1 Note connected as a diode in order to compensate the variation of the Q 2 ...
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L78Sxx, L78SxxC Figure 37. Protection against input short-circuit with high capacitance loads 1. Application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see Figure 30 on page falls rapidly while the output ...
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Package mechanical data 7 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 ...
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L78Sxx, L78SxxC Figure 38. Drawing dimension TO-220 (type STD-ST Dual Gauge) Note: 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. Doc ID ...
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Package mechanical data Figure 39. Drawing dimension TO-220 (type STD-ST Single Gauge) 34/39 Doc ID 2148 Rev 4 L78Sxx, L78SxxC 8174627_B ...
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L78Sxx, L78SxxC Figure 40. Drawing dimension tube for TO-220 Dual Gauge (mm.) Figure 41. Drawing dimension tube for TO-220 Single Gauge (mm.) Doc ID 2148 Rev 4 Package mechanical data 35/39 ...
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Package mechanical data Dim. Min 0. 3. 36/39 TO-3 mechanical data mm. Typ. Max. 11.85 1.05 1.10 1.70 8.7 20.0 10.9 16.9 26.2 4.09 39.5 30. ...
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L78Sxx, L78SxxC 8 Order codes Table 21. Order codes Part numbers TO-220 L78S05 L78S05C L78S05CV L78S75 L78S75C L78S75CV L78S09 L78S09C L78S09CV L78S10 L78S10C L78S10CV L78S12 L78S12C L78S12CV L78S15 L78S15C L78S15CV L78S18 L78S18C L78S18CV L78S24 L78S24C L78S24CV 1. Available on request. ...
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Revision history 9 Revision history Table 22. Document revision history Date Revision 07-Sep-2006 2 20-Mar-2008 3 22-Mar-2010 4 38/39 Order codes updated. Added: Table 1 on page 1. Added: Table 20 on page 32, Figure 38 on page Figure 40 ...
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... L78Sxx, L78SxxC 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. ...