参数资料
型号: LTC3780IUH#PBF
厂商: Linear Technology
文件页数: 7/30页
文件大小: 0K
描述: IC REG CTRLR BST PWM CM 32-QFN
标准包装: 73
PWM 型: 电流模式
输出数: 1
频率 - 最大: 440kHz
占空比: 99%
电源电压: 4 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 32-WFQFN 裸露焊盘
包装: 管件
产品目录页面: 1336 (CN2011-ZH PDF)
LTC3780
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C, unless otherwise noted.
SW2
10V/DIV
SW1
10V/DIV
V OUT
100mV/DIV
I L
2A/DIV
Continuous Current Mode
(CCM, V IN = 6V, V OUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
V OUT
100mV/DIV
I L
2A/DIV
Continuous Current Mode
(CCM, V IN = 12V, V OUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
V OUT
100mV/DIV
I L
2A/DIV
Continuous Current Mode
(CCM, V IN = 18V, V OUT = 12V)
V IN = 6V
V OUT = 12V
5μs/DIV
3780 G10
V IN = 12V
V OUT = 12V
5μs/DIV
3780 G11
V IN = 18V
V OUT = 12V
5μs/DIV
3780 G12
SW2
10V/DIV
SW1
10V/DIV
V OUT
500mV/DIV
I L
2A/DIV
Burst Mode Operation
(V IN = 6V, V OUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
V OUT
200mV/DIV
I L
2A/DIV
Burst Mode Operation
(V IN = 12V, V OUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
V OUT
100mV/DIV
I L
1A/DIV
Skip-Cycle Mode
(V IN = 18V, V OUT = 12V)
V IN = 6V
V OUT = 12V
25μs/DIV
3780 G13
V IN = 12V
V OUT = 12V
10μs/DIV
3780 G14
V IN = 18V
V OUT = 12V
2.5μs/DIV
3780 G15
SW2
10V/DIV
SW1
10V/DIV
V OUT
100mV/DIV
I L
1A/DIV
Discontinuous Current Mode
(DCM, V IN = 6V, V OUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
V OUT
100mV/DIV
I L
2A/DIV
Discontinuous Current Mode
(DCM, V IN = 12V, V OUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
V OUT
100mV/DIV
I L
1A/DIV
Discontinuous Current Mode
(DCM, V IN = 18V, V OUT = 12V)
V IN = 6V
V OUT = 12V
5μs/DIV
3780 G16
V IN = 12V
V OUT = 12V
5μs/DIV
3780 G17
V IN = 18V
V OUT = 12V
2.5μs/DIV
3780 G18
3780ff
For more information www.linear.com/LTC3780
7
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