l7808ab STMicroelectronics, l7808ab Datasheet
l7808ab
Available stocks
Related parts for l7808ab
l7808ab Summary of contents
Page 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 L7809AC February 2008 Precision 1 A regulators TO-220 Order codes L7812AB L7812AC ...
Page 2
Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
Diagram Figure 1. Block diagram Figure 2. Schematic diagram 3/27 ...
Page 4
Pin configuration Figure 3. Pin connections (top view) TO-220 4/27 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 6/27 ...
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 current q ΔI Quiescent current change q SVR Supply voltage rejection V Dropout voltage d eN Output noise voltage ...
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 L7818A ( -40 to 125 °C (L7818AB), 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
Table 11. 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 15
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 16
Figure 9. DC parameter 20V O ≥ Figure 10. DC parameter V BEQ1 R = ______________ 1 I -(I /β ) REQ BEQ1 ...
Page 17
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 18
Dim. Min. A 4.40 C 1. 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2 13.0 L5 2.65 L6 15.25 L7 6.2 L9 3.5 DIA. 3.75 18/27 TO-220 mechanical data ...
Page 19
TO-220FP mechanical data mm. Dim. Min. Typ 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. ...
Page 20
Figure 12. Drawing dimension D 20/27 2 PAK (type STD-ST) 0079457/L ...
Page 21
Figure 13. Drawing dimension D 2 PAK (type WOOSEOK-Subcon.) 0079457/L 21/27 ...
Page 22
Table 12. 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 23
Figure 14. D PAK footprint recommended data Table 13. Footprint data Dim 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 23/27 ...
Page 24
Tape & reel D PAK-P Dim. Min 12 10.50 Bo 15.70 Ko 4.80 Po 3.9 P 11.9 24/ PAK-D PAK/A-P PAK/A mechanical data mm. Typ. Max. Min. 180 ...
Page 25
... L7815AC L7815ACV L7818AB L7818ABV L7818AC L7818ACV L7824AB L7824ABV L7824AC L7824ACV Packaging 2 TO-220FP D PAK L7805ABP L7805ABD2T-TR L7805ACP L7805ACD2T-TR L7806ABD2T-TR L7806ACD2T-TR L7808ABD2T-TR L7808ACD2T-TR L7809ABD2T-TR L7809ACD2T-TR L7812ABD2T-TR L7812ACP L7812ACD2T-TR L7815ABD2T-TR L7815ACD2T-TR L7824ABD2T-TR Output voltage ...
Page 26
Revision history Table 15. 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 26/27 Changes Document updating. Order codes updated and new template PAK mechanical ...
Page 27
... 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. ...