L78L datasheet(39/40 Pages) STMICROELECTRONICS

39 / 40 page

List of figures

Figure 1.

Schematic diagram ................................................................. 2

Figure 2.

Pin connection (top view, bottom view for TO-92) ............................................ 3

Figure 3.

Test circuits ...................................................................... 3

Figure 4.

L78L05/12 output voltage vs. ambient temperature .......................................... 15

Figure 5.

L78L05/12/24 load characteristics ...................................................... 15

Figure 6.

L78L05/12/24 thermal shutdown ....................................................... 15

Figure 7.

L78L05/12 quiescent current vs. output current............................................. 15

Figure 8.

L78L05 quiescent current vs. input voltage................................................ 16

Figure 9.

L78L05/12/24 output characteristics .................................................... 16

Figure 10.

L78L05/12/24 ripple rejection ......................................................... 16

Figure 11.

L78L05 dropout characteristics ........................................................ 16

Figure 12.

L78L short-circuit output current ....................................................... 16

Figure 13.

High output current short-circuit protected ................................................ 17

Figure 14.

Outuput boost circuit ............................................................... 17

Figure 15.

Current regulator ................................................................. 17

Figure 16.

Adjustable output regulator........................................................... 18

Figure 17.

TO-92 package outline ............................................................. 19

Figure 18.

TO-92 tape and reel outline .......................................................... 20

Figure 19.

TO-92 Ammopak tape and reel outline................................................... 22

Figure 20.

SO-8 package outline .............................................................. 23

Figure 21.

SO-8 recommended footprint (dimensions are in mm) ........................................ 24

Figure 22.

SO-8 tape and reel dimensions........................................................ 25

Figure 23.

Tape orientation .................................................................. 25

Figure 24.

SOT-89 package outline ............................................................ 27

Figure 25.

SOT-89 recommended footprint ....................................................... 29

Figure 26.

SOT-89 carrier tape outline .......................................................... 30

Figure 27.

SOT-89 device orientation ........................................................... 30

Figure 28.

SOT-89 reel drawing ............................................................... 32

L78L

List of figures

DS0424 - Rev 28

page 39/40

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