L7809AB datasheet(54/55 Pages) STMICROELECTRONICS

54 / 55 page

List of figures

Figure 2.

Block diagram .................................................................... 2

Figure 3.

Pin connections (top view) ............................................................ 3

Figure 4.

Schematic diagram ................................................................. 3

Figure 5.

Application circuits ................................................................. 4

Figure 6.

DC parameter..................................................................... 5

Figure 7.

Load regulation.................................................................... 5

Figure 8.

Ripple rejection.................................................................... 5

Figure 9.

Fixed output regulator .............................................................. 22

Figure 10.

Current regulator ................................................................. 23

Figure 11.

Circuit for increasing output voltage..................................................... 23

Figure 12.

Adjustable output regulator (7 to 30 V)................................................... 23

Figure 13.

0.5 to 10 V regulator ............................................................... 24

Figure 14.

High current voltage regulator......................................................... 24

Figure 15.

High output current with short circuit protection ............................................. 24

Figure 16.

Tracking voltage regulator ........................................................... 25

Figure 17.

Split power supply (± 15 V - 1 A) ....................................................... 25

Figure 18.

Negative output voltage circuit ........................................................ 26

Figure 19.

Switching regulator ................................................................ 26

Figure 20.

High input voltage circuit (configuration 1) ................................................ 26

Figure 21.

High input voltage circuit (configuration 2) ................................................ 27

Figure 22.

High input and output voltage ......................................................... 27

Figure 23.

Reducing power dissipation with dropping resistor........................................... 27

Figure 24.

Remote shutdown ................................................................. 28

Figure 25.

Power AM modulator (unity voltage gain, IO ≤ 0.5)........................................... 28

Figure 26.

Adjustable output voltage with temperature compensation ..................................... 28

Figure 27.

Light controllers (VO(min) = VXX + VBE) ................................................... 29

Figure 28.

Protection against input short-circuit with high capacitance loads ................................ 29

Figure 29.

Dropout voltage vs junction temperature ................................................. 30

Figure 30.

Peak output current vs input/output differential voltage........................................ 30

Figure 31.

Supply voltage rejection vs frequency ................................................... 30

Figure 32.

Output voltage vs junction temperature .................................................. 30

Figure 33.

Output impedance vs frequency ....................................................... 31

Figure 34.

Quiescent current vs junction temp...................................................... 31

Figure 35.

Load transient response ............................................................ 31

Figure 36.

Line transient response ............................................................. 31

Figure 37.

Quiescent current vs. input voltage ..................................................... 31

Figure 38.

TO-220 (dual gauge) package outline ................................................... 33

Figure 39.

TO-220 (single gauge) package outline .................................................. 35

Figure 40.

TO-220FP package outline........................................................... 37

Figure 41.

Tube for TO-220 (dual gauge) (mm.) .................................................... 38

Figure 42.

Tube for TO-220 (single gauge) (mm.) ................................................... 39

Figure 43.

DPAK package outline .............................................................. 39

Figure 44.

DPAK recommended footprint (dimensions are in mm)........................................ 41

Figure 45.

D²PAK (SMD 2L STD-ST) type A package outline ........................................... 42

Figure 46.

D²PAK (ASE subcon) type B package outline .............................................. 44

Figure 47.

D²PAK recommended footprint (dimensions are in mm) ....................................... 46

Figure 48.

Tape outline ..................................................................... 47

Figure 49.

Reel outline ..................................................................... 48

L78

List of figures

DS0422 - Rev 36

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