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L5985 Datasheet(PDF) 31 Page - STMicroelectronics

Part # L5985
Description  2 A step-down switching regulator
PDF  37 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5985 Datasheet(HTML) 31 Page - STMicroelectronics

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L5985
Application information
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Figure 22.
Junction temperature vs output
current
Figure 23.
Junction temperature vs output
current
Figure 24.
Junction temperature vs output
current
Figure 25.
Efficiency vs output current
Figure 26.
Efficiency vsoutput current
Figure 27.
Efficiency vs output current
70
75
80
85
90
95
0.0
0.5
1.0
1.5
2.0
Io [A]
VCC=12V
FSW=250KHz
Vo=5.0V
Vo=3.3V
Vo=2.5V
76
78
80
82
84
86
88
90
92
94
0
0.5
1
1.5
2
Io [A]
VCC=5V,
FSW=250kHz
Vo=3.3V
Vo=2.5V
Vo=1.8V
70
75
80
85
90
95
0
0.5
1
1.5
2
Io [A]
VCC=3.3V,
FSW=250kHz
Vo=2.5V
Vo=1.8V
Vo=1.2V



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