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L4973 датащи(PDF) 12 Page - STMicroelectronics

номер детали L4973
подробное описание детали  3.5A step down switching regulator
PDF  27 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4973 датащи(HTML) 12 Page - STMicroelectronics

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Typical characteristics
L4973
12/27
7
Typical characteristics
Figure 9.
Quiescent drain current vs.
input voltage (0% duty cycle)
Figure 10. Quiescent drain current vs.
junction temperature
Figure 11. Stand by drain current vs.
input voltage
Figure 12. Reference voltage vs. junction
temperature (pin 16)
0
1020304050
VCC(V)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Ibias
(mA)
Tamb=25˚C
0% DC
D97IN633A
100KHz-R2=20K
C7=2.7nF
200KHz-R2=22K
C7=1.2nF
0Hz
-50
0
50
100
Tj(˚C)
2.5
3.0
3.5
4.0
Ibias
(mA)
D97IN634
100KHz-R2=20K
C7=2.7nF
200KHz-R2=22K
C7=1.2nF
0Hz
0% DC
VCC = 35V
0
1020304050
VCC(V)
50
100
150
Ibias
(
µA)
D97IN635A
25˚C
125˚C
Vinh = 5V
-40
0
40
80
Tj(˚C)
-20
20
60
100
5.0
5.05
5.1
5.15
VREF
(V)
D97IN637
Vcc=35V
Pin 16



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