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L5973D Datasheet(PDF) 4 Page - STMicroelectronics

Part # L5973D
Description  2.5A SWITCH STEP DOWN SWITCHING REGULATOR
PDF  10 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5973D Datasheet(HTML) 4 Page - STMicroelectronics

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Figure 1. Line Regulation
Figure 2. Output Voltage vs. Junction
Temperature
Figure 3. Quiescent Current vs. Junction
Temperature
Figure 4. Shutdown Current vs.Junction
Temperature
Figure 5. Switching Frequency 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)
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
1.2
1.4
1.6
1.8
2
-50
050
100
150
Tj (°C)
Iq (mA)
Vcc = 12V
DC = 0%
30
40
50
60
70
-50
0
50
100
150
Ishd (
µA)
Vcc = 12V
Tj (°C)
220
230
240
250
260
-50
0
50
100
150
Tj (°C)
Fsw (KHz)
Vcc = 12V
Vo = 3.3V



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