参数资料
型号: LT3640EUFD#PBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 3.4 A DUAL SWITCHING CONTROLLER, 2350 kHz SWITCHING FREQ-MAX, PQCC28
封装: 5 X 4 MM, LEAD FREE, PLASTIC, MO-220, QFN-28
文件页数: 22/24页
文件大小: 506K
代理商: LT3640EUFD#PBF
LT3640
3640f
Typical perForMance characTerisTics
Full Frequency Waveforms
Light Load Operation Waveforms
TA = 25°C, unless otherwise noted.
Watchdog Upper Boundary
Period vs CWDT
Watchdog Upper Boundary
Period vs Temperature
RST/WDO Pull-Up Current
200ns/DIV
SW1
10V/DIV
IL1
0.5A/DIV
SW2
5V/DIV
IL2
0.5A/DIV
3640 G18
VIN1 = 12V
VOUT1 = 3.3V/0.5A
VIN2 = VOUT1
VOUT2 = 1.8V/0.5A
500ns/DIV
SW1
10V/DIV
IL1
0.5A/DIV
SW2
5V/DIV
IL2
0.5A/DIV
3640 G19
VIN1 = 12V
VOUT1 = 3.3V/25mA
VIN2 = VOUT1
VOUT2 = 1.8V/30mA
CWDT CAPACITANCE (pF)
0
W
ATCHDOG
UPPER
BOUNDAR
YPERIOD
(ms)
120
140
160
100
80
2000
1000
3000
4000
5000
20
0
60
180
40
3640 G20
TEMPERATURE (°C)
–50
W
ATCHDOG
UPPER
BOUNDAR
YPERIOD
(ms)
20
25
30
15
10
50
0
100
150
5
0
35
3640 G21
RST/WDO VOLTAGE (V)
0
RST
/WDO
PULL-UP
CURRENT
(A)
1
0.5
1.5
2
3640 G22
0
10
20
5
15
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相关代理商/技术参数
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