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MIC4690 PDF预览

MIC4690

更新时间: 2023-12-06 20:01:39
品牌 Logo 应用领域
美国微芯 - MICROCHIP /
页数 文件大小 规格书
12页 275K
描述
The MIC4690 SuperSwitcher? is an easy-to-use, 500kHz step-down PWM voltage regulator. The MIC4

MIC4690 数据手册

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MIC4690  
Micrel  
Typical Characteristics  
Reference Voltage  
vs. Temperature  
1.243  
Quiescent Current  
vs. Temperature  
Efficiency vs.  
Output Current  
8.6  
8.5  
8.4  
8.3  
8.2  
8.1  
8
80  
78  
76  
74  
72  
70  
68  
VIN = 12.0V  
VOUT = 5.0V  
IOUT = 0  
1.241  
1.239  
1.237  
1.235  
1.233  
1.231  
VIN = 12V  
VOUT = 5V  
IOUT = 100mA  
1.229  
1.227  
1.225  
1.223  
7.9  
7.8  
7.7  
7.6  
VIN = 12.0V  
VOUT = 5.0V  
-40 -20  
0
20 40 60 80 100120140  
TEMPERTURE (°C)  
-40 -20  
0
20 40 60 80 100120140  
0
0.2 0.4 0.6 0.8  
1
1.2 1.4  
TEMPERATURE (°C)  
OUTPUT CURRENT (A)  
Efficiency  
vs. Input Voltage  
Frequency vs.  
Temperature  
Frequency Foldback  
vs. Temperature  
80  
70  
60  
50  
40  
30  
20  
10  
0
600  
500  
400  
300  
200  
100  
0
300  
250  
200  
150  
100  
50  
VIN = 12V  
VOUT = 5V  
IOUT = 100mA  
VIN = 12V  
VOUT = 5V  
IOUT = 100mA  
VOUT = 5V  
IOUT = 1A  
0
0
5
10 15 20 25 30 35 40  
INPUT VOLTAGE (V)  
-50  
0
50  
100  
150  
-50  
0
50  
100  
150  
Temperature (°C)  
Temperature (°C)  
Shutdown Current  
vs. Temperature  
Load Regulation  
Line Regulation  
5.025  
5.020  
5.015  
5.010  
5.005  
5.000  
5.06  
5.04  
5.02  
5.00  
4.98  
4.96  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
VIN = 12V  
VOUT = 5V  
VSHDN = VIN = 12V  
OUT = 5V  
V
VIN = 12V  
VOUT = 5V  
IOUT = 500mA  
0
0.2 0.4 0.6 0.8  
1
1.2 1.4  
0
5
10 15 20 25 30 35 40  
INPUT VOLTAGE (V)  
-40 -20  
0
20 40 60 80 100120140  
OUTPUT CURRENT (A)  
TEMPERATURE (°C)  
Shutdown Hysteresis  
vs. Temperature  
1.6  
OFF  
1.4  
1.2  
1
ON  
0.8  
0.6  
0.4  
0.2  
0
VIN = 12.0V  
VOUT = 5.0V  
IOUT = 100mA  
-40  
0
40  
80 120 160  
TEMPERATURE (°C)  
April 2005  
5
MIC4690  

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