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LTC1174_06 PDF预览

LTC1174_06

更新时间: 2022-04-23 23:00:11
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
20页 248K
描述
High Efficiency Step-Down and Inverting DC/DC Converter

LTC1174_06 数据手册

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LTC1174  
LTC1174-3.3/LTC1174-5  
ELECTRICAL CHARACTERISTICS  
Note 3: Guaranteed by design.  
Note 5: Current into Pin 6 only, measured without electrolytic input  
capacitor.  
Note 4: Dynamic supply current is higher due to the gate charge being  
delivered at the switching frequency.  
Note 6: The off-time is wafer-sort trimmed.  
U W  
TYPICAL PERFOR A CE CHARACTERISTICS  
Efficiency vs Load Current  
Efficiency vs Load Current  
Efficiency vs Load Current  
100  
95  
90  
85  
80  
75  
70  
100  
95  
90  
85  
80  
75  
70  
100  
95  
90  
85  
80  
75  
70  
V
= 6V  
IN  
V
= 6V  
IN  
V
= 6V  
IN  
V
= 9V  
IN  
V
= 9V  
IN  
V
= 9V  
IN  
L = 50µH  
L = 50µH  
L = 100µH  
V
PGM  
COIL = CTX50-4  
= 5V  
= 0V  
OUT  
V
PGM  
COIL = CTX50-4  
= 5V  
V
= 5V  
OUT  
OUT  
I
I
= V  
I
= V  
IN  
PGM IN  
COIL = CTX100-4  
1
10  
LOAD CURRENT (mA)  
100 200  
1
10  
100  
400  
1
10  
100  
500  
LOAD CURRENT (mA)  
LOAD CURRENT (mA)  
1174 G01  
1174 G02  
1174 G03  
Efficiency vs Load Current  
Efficiency vs Load Current  
Efficiency vs Load Current  
100  
90  
80  
70  
60  
50  
100  
90  
80  
70  
60  
50  
100  
90  
80  
70  
60  
50  
V
= 5V  
IN  
V
= 5V  
V
V
IN  
= 5V  
IN  
V
= 9V  
= 9V  
V
= 9V  
IN  
IN  
IN  
L = 50µH  
V
L = 50µH  
L = 100µH  
= 3.3V  
V
= 3.3V  
V
= 3.3V  
OUT  
PGM  
OUT  
PGM  
COIL = CTX50-4  
OUT  
I
= 0V  
I
= V  
I
= V  
IN  
PGM IN  
COIL = CTX100-4  
COIL = CTX50-4  
1
10  
100  
300  
1
10  
100  
500  
1
10  
100 500  
LOAD CURRENT (mA)  
LOAD CURRENT (mA)  
LOAD CURRENT (mA)  
1174 G04  
1174 G05  
1174 G06  
1174fe  
4

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