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L4979D View Datasheet(PDF) - STMicroelectronics

Part Name
Description
MFG CO.
L4979D
ST-Microelectronics
STMicroelectronics ST-Microelectronics
'L4979D' PDF : 22 Pages View PDF
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List of figures
List of figures
L4979D, L4979MD
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Behavior of output current versus regulated voltage Vo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Watchdog time diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SO-8 PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Rthj-amb vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . . 12
SO-8 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Thermal fitting model of Vreg in SO-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SO-20 PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Rthj-amb vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . . 15
SO-20 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . . . 15
Thermal fitting model of Vreg in SO-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SO-8 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SO-20 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4/22
Doc ID 10262 Rev 9
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