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LTC3403 PDF预览

LTC3403

更新时间: 2023-12-20 18:44:07
品牌 Logo 应用领域
亚德诺 - ADI 晶体管稳压器
页数 文件大小 规格书
16页 927K
描述
具旁路晶体管的 1.5MHz、600mA 同步降压型稳压器

LTC3403 数据手册

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LTC3403  
U W  
(From Figure 1a)  
TYPICAL PERFOR A CE CHARACTERISTICS  
Switch Leakage vs Temperature  
Switch Leakage vs Input Voltage  
300  
120  
100  
80  
60  
40  
20  
0
T
= 25°C  
V
= 5.5V  
A
IN  
RUN = 0V  
RUN = 0V  
250  
200  
150  
SYNCHRONOUS  
SWITCH  
MAIN  
SWITCH  
100  
50  
0
MAIN SWITCH  
SYNCHRONOUS SWITCH  
50  
TEMPERATURE (°C)  
100 125  
0
2
3
4
5
6
–50 –25  
0
25  
75  
1
INPUT VOLTAGE (V)  
3403 G11  
3403 G12  
Start-Up from Shutdown  
Burst Mode Operation  
RUN  
2V/DIV  
V
OUT  
0.1V/DIV  
V
OUT  
1V/DIV  
I
L
200mA/DIV  
I
L
500mA/DIV  
3403 G14  
3403 G13  
V
V
I
= 3.6V  
= 0.6V  
LOAD  
MODE = 0V  
2µs/DIV  
V
V
= 3.6V  
= 0.6V  
LOAD  
40µs/DIV  
IN  
REF  
IN  
REF  
R
= 60mA  
= 3Ω  
MODE = 3.6V, FORCED CONTINUOUS MODE  
Load Step Response  
Forced Continuous Mode  
V
OUT  
200mV/DIV  
V
OUT  
10mV/DIV  
I
L
500mA/DIV  
I
L
I
LOAD  
200mA/DIV  
500mA/DIV  
3403 G16  
V
V
= 3.6V  
20µs/DIV  
IN  
3403 G15  
V
V
= 3.6V  
200ns/DIV  
IN  
= 0.6V  
REF  
LOAD  
= 0.6V  
REF  
= 0A  
LOAD  
I
= 50mA TO 600mA  
I
MODE = 0V, Burst Mode OPERATION  
MODE = 3.6V  
3403f  
5

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