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L5973D 数据表(PDF) 7 Page - STMicroelectronics

部件名 L5973D
功能描述  2.5 A switch step down switching regulator
PDF  17 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5973D 数据表(HTML) 7 Page - STMicroelectronics

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L5973D
Typical characteristics
7/17
4
Typical characteristics
Figure 3.
Line regulation
Figure 4.
Shutdown current vs junction
temperature
Figure 5.
Output voltage vs junction
temperature
Figure 6.
Switching frequency vs
junction temperature
Figure 7.
Quiescent current vs junction
temperature
3.276
3.28
3.284
3.288
3.292
3.296
3.3
3.304
3.308
3.312
010
20
30
40
Vcc (V)
Tj = 125°C
Tj = 25°C
Vcc = 12V
Vo = 3.3V
Vo (V)
30
40
50
60
70
-50
0
50
100
150
Ishd (
µA)
Vcc = 12V
Tj (°C)
Tj (°C)
Vcc=12V
1.2
1.21
1.22
1.23
1.24
1.25
-50
0
50
100
150
Vo (V)
Vcc = 12V
220
230
240
250
260
-50
0
50
100
150
Tj (°C)
Fsw (KHz)
Vcc = 12V
Vo = 3.3V
1.2
1.4
1.6
1.8
2
-50
050
100
150
Tj (°C)
Iq (mA)
Vcc = 12V
DC = 0%



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