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AAT2556 PDF预览

AAT2556

更新时间: 2022-04-23 23:00:11
品牌 Logo 应用领域
AAT 转换器电池便携式
页数 文件大小 规格书
29页 796K
描述
Battery Charger and Step-Down Converter for Portable Applications

AAT2556 数据手册

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AAT2556  
Battery Charger and Step-Down  
Converter for Portable Applications  
Typical Characteristics – Step-Down Converter  
Output Voltage Error vs. Temperature  
(VIN = 3.6V; VOUT = 1.8V; IOUT = 250mA)  
Switching Frequency Variation  
vs. Temperature  
(VIN = 3.6V; VOUT = 1.8V)  
3.0  
2.0  
10.0  
8.0  
6.0  
1.0  
4.0  
2.0  
0.0  
0.0  
-2.0  
-4.0  
-6.0  
-8.0  
-10.0  
-1.0  
-2.0  
-3.0  
-40  
-20  
0
20  
40  
60  
80  
100  
5.5  
6.0  
-40  
-20  
0
20  
40  
60  
80  
100  
Temperature (°C)  
Temperature (°C)  
Frequency Variation vs. Input Voltage  
(VOUT = 1.8V)  
No Load Quiescent Current vs. Input Voltage  
50  
45  
40  
2.0  
1.0  
0.0  
85°C  
35  
-1.0  
-2.0  
-3.0  
-4.0  
30  
25°C  
25  
-40°C  
20  
15  
10  
2.7  
3.1  
3.5  
3.9  
4.3  
4.7  
5.1  
2.7  
3.1  
3.5  
3.9  
4.3  
4.7  
5.1  
5.5  
Input Voltage (V)  
Input Voltage (V)  
P-Channel RDS(ON) vs. Input Voltage  
N-Channel RDS(ON) vs. Input Voltage  
750  
1000  
900  
800  
700  
600  
500  
400  
300  
700  
650  
600  
550  
500  
450  
400  
350  
300  
120°C 100°C  
85°C  
120°C  
100°C  
85°C  
25°C  
25°C  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
6.0  
Input Voltage (V)  
Input Voltage (V)  
2556.2006.09.1.2  
7

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