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LTC3711 PDF预览

LTC3711

更新时间: 2023-12-20 18:46:38
品牌 Logo 应用领域
亚德诺 - ADI 控制器
页数 文件大小 规格书
24页 301K
描述
5 位可调、宽工作范围、No RSENSE?降压型控制器

LTC3711 数据手册

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LTC3711  
U W  
TYPICAL PERFOR A CE CHARACTERISTICS  
Transient Response  
(Discontinuous Mode)  
Transient Response  
Start-Up  
VOUT  
50mV/DIV  
VOUT  
50mV/DIV  
RUN/SS  
2V/DIV  
VOUT  
1V/DIV  
IL  
IL  
IL  
10A/DIV  
10A/DIV  
10A/DIV  
20µs/DIV  
3711 G01  
20µs/DIV  
3711 G02  
50ms/DIV  
3711 G03  
LOAD STEP = 0A TO 15A  
LOAD STEP = 1A TO 15A  
VIN = 15V  
V
IN = 15V  
V
IN = 15V  
VOUT = 1.5V  
VOUT = 1.5V  
FCB = 0V  
FIGURE 9 CIRCUIT  
VOUT = 1.5V  
FCB = INTVCC  
FIGURE 9 CIRCUIT  
RLOAD = 0.1Ω  
FIGURE 9 CIRCUIT  
Efficiency vs Load Current  
Efficiency vs Input Voltage  
Frequency vs Load Current  
100  
90  
80  
70  
60  
50  
100  
95  
90  
85  
80  
75  
70  
350  
300  
250  
200  
150  
100  
50  
FIGURE 9 CIRCUIT  
FCB = 5V  
CONTINUOUS MODE  
DISCONTINUOUS  
MODE  
EXTV = 5V  
CC  
I
= 1.5A  
LOAD  
DISCONTINUOUS MODE  
I
= 15A  
LOAD  
CONTINUOUS  
MODE  
V
V
= 15V  
IN  
OUT  
= 1.5V  
EXTV = 5V  
CC  
FIGURE 9 CIRCUIT  
FIGURE 9 CIRCUIT  
0
0.1  
1
0.001  
10  
0
5
10  
15  
20  
25  
30  
0
2
4
6
8
10  
0.01  
LOAD CURRENT (A)  
INPUT VOLTAGE (V)  
LOAD CURRENT (A)  
3711 G04  
3711 G05  
3711 G06  
Current Sense Threshold  
vs ITH Voltage  
Frequency vs Input Voltage  
ITH Voltage vs Load Current  
350  
325  
300  
275  
250  
225  
200  
2.5  
2.0  
1.5  
1.0  
0.5  
0
300  
200  
100  
0
2V  
V
RNG  
=
FIGURE 9 CIRCUIT  
FCB = 0V  
FIGURE 9 CIRCUIT  
FCB = 0V  
1.4V  
1V  
I
= 15A  
= 0A  
OUT  
OUT  
0.7V  
0.5V  
I
–100  
–200  
5
10  
15  
INPUT VOLTAGE (V)  
20  
25  
0
5
10  
15  
20  
25  
0
1.0  
I
1.5  
2.0  
2.5  
3.0  
0.5  
VOLTAGE (V)  
LOAD CURRENT (A)  
TH  
3711 G07  
3711 G09  
3711 G10  
3711f  
4

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