參數(shù)資料
型號(hào): L5970D
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 2.25 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO8
封裝: SOP-8
文件頁(yè)數(shù): 15/16頁(yè)
文件大?。?/td> 274K
代理商: L5970D
Typical characteristics
L5970D
8/16
Figure 9.
Quiescent current vs
junction temperature
Figure 10. Switching frequency vs
junction temperature
Figure 11. Shutdown current vs junction
temperature
Figure 12. Efficiency vs output current
Figure 13. Efficiency vs output current
1.2
1.4
1.6
1.8
2
-50
050
100
150
Tj (°C)
Iq (mA)
Vcc = 12V
DC = 0%
220
230
240
250
260
-50
0
50
100
150
Tj (C)
Fsw (KHz)
Vcc = 12V
Vo = 3.3V
30
40
50
60
70
-50
0
50
100
150
Ishd (
A)
Vcc = 12V
Tj (°C)
70
72
74
76
78
80
82
84
86
88
90
92
94
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Io (A)
E
ff
icie
n
cy
(
%
)
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vcc=5V
70
72
74
76
78
80
82
84
86
88
90
92
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Io (A)
E
ffi
ciency
(%)
Vcc=12V
Vo=5V
Vo=3.3V
Vo=2.5V
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