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L5987 Datasheet(PDF) 35 Page - STMicroelectronics

Part # L5987
Description  3 A step-down switching regulator
PDF  42 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5987 Datasheet(HTML) 35 Page - STMicroelectronics

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L5987 - L5987A
Application information
35/42
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 vs output current
Figure 27.
Efficiency vs output current
76
78
80
82
84
86
88
90
92
0.3
0.8
1.3
1.8
2.3
2.8
Io [A]
VIN=12V
VO=2.5V
VO=3.3V
VO=5V
FSW=250kHz
76
78
80
82
84
86
88
90
92
0.3
0.8
1.3
1.8
2.3
2.8
Io [A]
VIN=12V
VO=2.5V
VO=3.3V
VO=5V
FSW=250kHz
70
75
80
85
90
95
0.3
0.8
1.3
1.8
2.3
2.8
Io [A]
VO=1.8V
VO=2.5V
VO=3.3V
VIN=5V
FSW=250kHz
70
75
80
85
90
95
0.3
0.8
1.3
1.8
2.3
2.8
Io [A]
VO=1.8V
VO=2.5V
VO=3.3V
VIN=5V
FSW=250kHz
65
70
75
80
85
90
95
0.3
0.8
1.3
1.8
2.3
2.8
Io [A]
VO=1.2V
VO=1.8V
VO=2.5V
VIN=3.3V



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