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LTC3545 数据表(PDF) 5 Page - Linear Technology

部件名 LTC3545
功能描述  Triple 800mA Synchronous Step-Down Regulator-2.25MHz
PDF  20 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3545 数据表(HTML) 5 Page - Linear Technology

  LTC3545 Datasheet HTML 1Page - Linear Technology LTC3545 Datasheet HTML 2Page - Linear Technology LTC3545 Datasheet HTML 3Page - Linear Technology LTC3545 Datasheet HTML 4Page - Linear Technology LTC3545 Datasheet HTML 5Page - Linear Technology LTC3545 Datasheet HTML 6Page - Linear Technology LTC3545 Datasheet HTML 7Page - Linear Technology LTC3545 Datasheet HTML 8Page - Linear Technology LTC3545 Datasheet HTML 9Page - Linear Technology Next Button
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LTC3545/LTC3545-1
5
35451fb
TYPICAL PERFORMANCE CHARACTERISTICS
Channel 1 Load Step Response
Channel 2 Load Step Response
Channel 3 Load Step Response
Supply Current vs Temperature,
Pulse Skipping
Efficiency vs Load Current,
Burst Mode Operation
Efficiency vs Load Current,
Pulse Skipping Operation
TEMPERATURE (°C)
150
200
250
300
350
450
3545 G07
400
VFB3 = 0.625V
ILOAD = 0mA
CHANNEL 3 ONLY
VIN = 5.5V
VIN = 4.5V
VIN = 3.5V
VIN = 2.5V
–50
0
50
150
100
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
0.1
10
100
1000
3545 G08
0
1
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
TA = 25°C
VOUT = 1.8V
CHANNEL 3, OTHER CHANNELS OFF
fOSC = 2.25MHz
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
0.1
10
100
1000
3545 G09
0
1
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
TA = 25°C
VOUT = 1.8V
CHANNEL 3, OTHER CHANNELS OFF
fOSC = 2.25MHz
10μs/DIV
ILOAD
500mA/DIV
IL
500mA/DIV
VOUT1
100mV/DIV
3545 G10
TA = 25°C
VIN = 3.6V
VOUT = 1.2V
LOAD STEP 0mA TO 600mA
Burst Mode OPERATION
10μs/DIV
ILOAD
500mA/DIV
IL
500mA/DIV
VOUT2
100mV/DIV
3545 G11
TA = 25°C
VIN = 3.6V
VOUT = 1.5V
LOAD STEP 0mA TO 600mA
Burst Mode OPERATION
10μs/DIV
ILOAD
500mA/DIV
IL
500mA/DIV
VOUT3
100mV/DIV
3545 G12
TA = 25°C
VIN = 3.6V
VOUT = 1.8V
LOAD STEP 0mA TO 600mA
Burst Mode OPERATION



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