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STPMIC1 数据表(PDF) 22 Page - STMicroelectronics

部件名 STPMIC1
功能描述  Highly integrated power management IC for micro processor units
PDF  140 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STPMIC1 数据表(HTML) 22 Page - STMicroelectronics

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3.5
Application board curves
Unless otherwise specified, all typical curves are given as design guidelines.
Figure 3. BUCK1 efficiency
0
10
20
30
40
50
60
70
80
90
100
0.00001
0.0001
0.001
0.01
0.1
1
Load [A]
1.2Vout 5Vin LP
1.2Vout 3.6Vin LP
1.2Vout 3.6Vin HP
1.2Vout 5Vin HP
Figure 4. BUCK2 efficiency
0
10
20
30
40
50
60
70
80
90
100
0.00001
0.0001
0.001
0.01
0.1
1
Load [A]
1.2Vout 5Vin LP
1.2Vout 3.6Vin LP
1.35Vout 5Vin LP
1.2Vout 3.6Vin HP
1.2Vout 5Vin HP
1.35Vout 5Vin HP
Figure 5. BUCK3 efficiency
0
10
20
30
40
50
60
70
80
90
100
0.00001
0.0001
0.001
0.01
0.1
1
Load [A]
1.8Vout 5Vin LP
1.8Vout 3.6Vin LP
3.3Vout 5Vin LP
1.8Vout 5Vin HP
3.3Vout 5Vin HP
1.8Vout 3.6Vin HP
Figure 6. BUCK4 efficiency
0
10
20
30
40
50
60
70
80
90
100
0.00001
0.0001
0.001
0.01
0.1
1
Load [A]
1.2Vout 5Vin LP
1.2Vout 3.6Vin LP
3.3Vout 5Vin LP
1.8Vout 3.6Vin LP
1.2Vout 3.6Vin HP
1.8Vout 3.6Vin HP
1.2Vout 5Vin HP
3.3V 5Vin HP
Figure 7. Boost efficiency
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1
10
100
1000
Load [mA]
VIN = 3V
VIN = 3.6V
VIN = 5V
VIN = 5.5V
Figure 8. Boost powered by 5 V supply having poor
performance
STPMIC1
Application board curves
DS12792 - Rev 7
page 22/140



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