参数资料
型号: L5973AD
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 2.3 A SWITCHING REGULATOR, PDSO8
封装: EXPOSED PAD, HSOP-8
文件页数: 7/22页
文件大小: 486K
代理商: L5973AD
L5973AD
Additional features and protections
Doc ID 9552 Rev 9
15/22
Figure 9.
Junction temperature vs output
current
Figure 10.
Junction temperature vs output
current
20
30
40
50
60
70
80
90
100
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
Tj(°C)
Vo=2.5V
Vo=3.3V
Vo=1.8V
Vin=5V
Tamb=25°C
20
30
40
50
60
70
80
90
100
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
Tj(°C)
Vo=2.5V
Vo=3.3V
Vo=1.8V
Vin=5V
Tamb=25°C
20
30
40
50
60
70
80
90
100
110
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
Tj(C)
Vin=12V
Tamb=25°C
Vo=3.3V
Vo=5V
Vo=2.5V
20
30
40
50
60
70
80
90
100
110
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
Tj(C)
Vin=12V
Tamb=25°C
Vo=3.3V
Vo=5V
Vo=2.5V
Figure 11.
Efficiency vs output current
Figure 12.
Efficiency vs output current
65
70
75
80
85
90
95
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
E
ffi
cien
c
y
(
%
)
Vin=5V
Vout=2.5V
Vout=3.3V
Vout=1.8V
65
70
75
80
85
90
95
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
E
ffi
cien
c
y
(
%
)
Vin=5V
Vout=2.5V
Vout=3.3V
Vout=1.8V
65
70
75
80
85
90
95
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
Efficien
cy
(%)
Vin=12V
Vout=3.3V
Vout=2.5V
Vout=5V
65
70
75
80
85
90
95
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
Efficien
cy
(%)
Vin=12V
Vout=3.3V
Vout=2.5V
Vout=5V
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