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L4973 Datasheet(PDF) 13 Page - STMicroelectronics

No. de pieza L4973
Descripción Electrónicos  3.5A step down switching regulator
PDF  27 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4973 Datasheet(HTML) 13 Page - STMicroelectronics

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L4973
Typical characteristics
13/27
Figure 13. Reference voltage vs.
input voltage (pin 16)
Figure 14. Reference voltage vs.
reference input current
Figure 15. Inhibit current vs. inhibit
voltage (pin 10)
Figure 16. Line regulation (see Figure 7)
Figure 17. Load regulation (see Figure 7) Figure 18. Line regulation (see Figure 8)
0
1020304050
VCC(V)
5.0
5.05
5.1
5.15
VREF
(V)
D97IN636A
Tj=25˚C
Pin 16
0
1020304050 IREF(mA)
4.9
5.0
5.1
5.2
VREF
(V)
D97IN638
Tj=25˚C
Vcc=10V
Vcc=40V
0
15
Vinh(V)
10
5
-50
0
50
100
Iinh
(
µA)
D97IN651
Tj=0˚C
Tj=25˚C
Tj=125˚C
Vcc=35V
Pin 10
0
1020304050
VCC(V)
5.06
5.08
5.1
5.12
VO
(V)
D97IN639A
Tj=25˚C
Tj=125˚C
IO = 1A
0123
IO(A)
5.0
5.05
5.1
5.15
VO
(V)
D97IN640
Tj=25˚C
Tj=125˚C
VCC = 35V
0
1020304050
VCC(V)
3.3
3.31
3.32
3.34
VO
(V)
3.33
3.35
D97IN660A
Tj=25˚C
Tj=125˚C
IO = 1A



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