L7805AB_08

Manufacturer Part NumberL7805AB_08
DescriptionPrecision 1 A regulators
ManufacturerSTMICROELECTRONICS [STMicroelectronics]
L7805AB_08 datasheet
 
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Features
Output current in excess of 1 A
Output voltages of 5; 6; 8; 9; 12; 15; 24 V
Thermal overload protection
Output transition SOA protection
2 % Output voltage tolerance
Guaranteed in extended temperature range
Description
The L78xxAB L78xxAC series of three terminal
positive regulators are available in TO-220,
2
TO-220FP, and D
PAK packages and several
fixed output voltages, making it useful in a wide
range of applications. These regulators can
provide local on-card regulation, eliminating the
distribution problem 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 1 A output current, although designed
primarily as fixed voltage regulators, these
devices can be used with external components to
obtain adjustable voltage and currents.
Table 1.
Device summary
L7805AB
L7805AC
L7806AB
L7806AC
L7808AB
L7808AC
L7809AB
July 2008
Precision 1 A regulators
TO-220
Order codes
L7809AC
L7812AB
L7812AC
L7815AB
L7815AC
L7824AB
L7824AC
Rev 17
L78xxAB
L78xxAC
TO-220FP
2
D
PAK
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www.st.com
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L7805AB_08 Summary of contents

  • Page 1

    Features ■ Output current in excess ■ Output voltages 12; 15 ■ Thermal overload protection ■ Output transition SOA protection ■ Output voltage tolerance ■ Guaranteed in extended ...

  • Page 2

    Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 3

    Diagram Figure 1. Block diagram Figure 2. Schematic diagram 3/26 ...

  • Page 4

    Pin configuration Figure 3. Pin connections (top view) TO-220 4/26 TO-220FP 2 D PAK ...

  • Page 5

    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 those values ...

  • Page 6

    Test circuits Figure 5. DC parameter Figure 6. Load regulation Figure 7. Ripple rejection 6/26 ...

  • Page 7

    Electrical characteristics Table 4. Electrical characteristics of L7805A ( -40 to 125 °C (L7805AB), unless otherwise specified) J Symbol Parameter V Output voltage O V Output voltage O (1) ΔV Line regulation O ΔV (*) Load regulation ...

  • Page 8

    Table 5. Electrical characteristics of L7806A ( -40 to 125 °C (L7806AB), unless otherwise specified) J Symbol Parameter V Output voltage O V Output voltage O ΔV (1) Line regulation O ΔV (1) Load regulation O I Quiescent ...

  • Page 9

    Table 6. Electrical characteristics of L7808A ( -40 to 125 °C (L7808AB), unless otherwise specified) J Symbol Parameter V Output voltage O V Output voltage O ΔV (1) Line regulation O ΔV (1) Load regulation O I Quiescent ...

  • Page 10

    Table 7. Electrical characteristics of L7809A ( -40 to 125 °C (L7809AB), unless otherwise specified) J Symbol Parameter V Output voltage O V Output voltage O ΔV (1) Line regulation O ΔV (1) Load regulation O I Quiescent ...

  • Page 11

    Table 8. Electrical characteristics of L7812A ( -40 to 125 °C (L7812AB), unless otherwise specified) J Symbol Parameter V Output voltage O V Output voltage O ΔV (1) Line regulation O ΔV (1) Load regulation O I Quiescent ...

  • Page 12

    Table 9. Electrical characteristics of L7815A ( -40 to 125 °C (L7815AB), unless otherwise specified) J Symbol Parameter V Output voltage O V Output voltage O ΔV (1) Line regulation O ΔV (1) Load regulation O I Quiescent ...

  • Page 13

    Table 10. Electrical characteristics of L7824A ( -40 to 125 °C (L7824AB), unless otherwise specified) J Symbol Parameter V Output voltage O V Output voltage O ΔV (1) Line regulation O ΔV (1) Load regulation O I Quiescent ...

  • Page 14

    Application information 6.1 Design consideration The L78xxA Series of fixed voltage regulators are designed with Thermal Overload Protection that shuts down the circuit when subjected to an excessive power overload condition, internal short-circuit protection that limits the maximum current ...

  • Page 15

    Figure 9. DC parameter 20V O ≥ Figure 10. DC parameter V BEQ1 R = ______________ 1 I -(I /β ) REQ BEQ1 ...

  • Page 16

    Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK 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 ...

  • Page 17

    TO-220 mechanical data mm. Dim. Min. Typ. A 4.40 C 1.23 D 2.40 D1 1.27 E 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2.4 H2 10.0 L2 16.4 L4 13.0 L5 2.65 L6 15.25 L7 6.2 L9 ...

  • Page 18

    Dim. Min. A 4.40 B 2.5 D 2.5 E 0.45 F 0.75 F1 1.15 F2 1.15 G 4.95 G1 2 28.6 L4 9.8 L5 2 DIA. 3 18/26 TO-220FP mechanical data mm. ...

  • Page 19

    Figure 12. Drawing dimension D 2 PAK (type STD-ST) 0079457/L 19/26 ...

  • Page 20

    Figure 13. Drawing dimension D 20/26 2 PAK (type WOOSEOK-Subcon.) 0079457/L ...

  • Page 21

    Table 11. D PAK mechanical data Type STD-ST Dim. Min. A 4.40 A1 0.03 b 0.70 b2 1.14 c 0.45 c2 1.23 D 8. 2.49 L 2.29 ...

  • Page 22

    Figure 14. D PAK footprint recommended data Table 12. Footprint data Dim 22/26 Values mm. 12.20 9.75 16.90 3.50 1.60 2.54 5.08 inch. 0.480 0.384 0.665 0.138 0.063 0.100 0.200 ...

  • Page 23

    Tape & reel D PAK-P mm. Dim. Min. Typ 12.8 13 10.50 10.6 Bo 15.70 15.80 Ko 4.80 4.90 Po 3.9 4.0 P 11.9 12 PAK-D PAK/A-P PAK/A ...

  • Page 24

    Order codes Table 13. Order codes Part number TO-220 L7805AB L7805ABV L7805AC L7805ACV L7806AB L7806ABV L7806AC L7806ACV L7808AB L7808ABV L7808AC L7808ACV L7809AB L7809ABV L7809AC L7809ACV L7812AB L7812ABV L7812AC L7812ACV L7815AB L7815ABV L7815AC L7815ACV L7824AB L7824ABV L7824AC L7824ACV 24/26 Packaging ...

  • Page 25

    Revision history Table 14. Document revision history Date Revision 21-Jun-2004 9 04-Aug-2006 10 19-Jan-2007 11 07-Mar-2007 12 01-Jun-2007 13 25-Jul-2007 14 11-Dec-2007 15 20-Feb-2008 16 15-Jul-2008 17 Changes Document updating. Order codes updated and new template PAK ...

  • Page 26

    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 ...