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L4973D3 データシート(PDF) 8 Page - STMicroelectronics

部品番号 L4973D3
部品情報  3.5A STEP DOWN SWITCHING REGULATOR
PDF  16 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4973D3 データシート(HTML) 8 Page - STMicroelectronics

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0
1020304050
VCC(V)
50
100
150
Ibias
(
µA)
D97IN635A
25
°C
125
°C
Vinh =5V
Figure 4: Stand by Drain Current vs. input
Voltage
-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
Figure 5: Reference Voltage vs. Junction
Temperature (Pin 16)
0
1020
3040
50
VCC(V)
5.0
5.05
5.1
5.15
VREF
(V)
D97IN636A
Tj=25
°C
Pin 16
Figure 6: Reference Voltage vs. Input Voltage
(Pin 16)
0
102030
4050 IREF(mA)
4.9
5.0
5.1
5.2
VREF
(V)
D97IN638
Tj=25
°C
Vcc=10V
Vcc=40V
Figure 7: Reference Voltage vs. Reference Input
Current
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
Figure 8: Inhibit Current vs. Inhibit Voltage
(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
Figure 9: Line Regulation (see fig. 1)
L4973V3.3 - L4973V5.1 - L4973D3.3 - L4973D5.1
8/16



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