參數(shù)資料
型號(hào): 83F5958
英文描述: IC-1.25A SWITCHING REGULATOR
中文描述: 集成電路1.25A的開關(guān)穩(wěn)壓器
文件頁(yè)數(shù): 6/16頁(yè)
文件大?。?/td> 129K
代理商: 83F5958
MIC2172/3172
Typical Performance Characteristics
Micrel
4-18
1997
2.3
2.4
2.5
2.6
2.7
2.8
2.9
-100
-50
0
50
100
150
M
Temperature (
°
C)
MIC2172 Minimum
Operating Voltage
Switch Current = 1A
0
100
200
300
400
500
600
700
800
-50
0
50
100
150
F
Temperature (
°
C)
Feedback Bias Current
-5
-4
-3
-2
-1
0
1
2
3
4
5
0
10
20
30
40
F
V
IN
Operating (V)
Feedback Voltage
Line Regulation
TJ = -40
°
C
TJ = 25
°
C
TJ = 125
°
C
5
6
7
8
9
10
11
12
13
14
15
0
10
20
30
40
S
V
IN
Operating Voltage (V)
Supply Current
ISW = 0
D.C. = 90%
D.C. = 50%
D.C. = 0%
0
1
2
3
4
5
6
7
8
-50
0
50
100
150
S
μ
A
Temperature (
°
C)
Supply Current
(Shutdown Mode)
MIC3172
V
IN
= 40V
0.8
0.9
1
1.1
1.2
1.3
1.4
-100
-50
0
50
100
150
E
Temperature (
°
C)
Enable Thresholds
ON
OFF
MIC3172
0
0.0
10
20
30
40
50
0.5
Switch Current (A)
1.0
1.5
2.0
A
Supply Current
δ
= 90%
δ
= 50%
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0.0
0.5
1.0
1.5
S
Switch Current (A)
Switch ON Voltage
TJ = 25
°
C
TJ = 125
°
C
TJ = –40
°
C
0
1
2
3
4
0
20
40
60
80
100
S
Duty Cycle (%)
Current Limit
–40
°
C
25
°
C
125
°
C
0
1
2
3
4
5
6
7
8
9
10
-50
0
50
100
150
S
Temperature (
°
C)
Supply Current
V
COMP
= 0.6V
60
70
80
90
100
110
120
-50
0
Temperature (
°
C)
50
100
150
F
Oscillator Frequency
90
100
110
120
130
140
1
10
100
1000
f
O
R
ADJ
(k
)
Oscillator Frequency
MIC2172
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