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LTC3633 数据表(PDF) 6 Page - Linear Technology

部件名 LTC3633
功能描述  Dual Channel 3A, 15V Monolithic Synchronous Step-Down Regulator
PDF  28 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3633 数据表(HTML) 6 Page - Linear Technology

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LTC3633
6
3633f
Burst Mode Operation
Internal MOSFET RDS(ON)
vs Temperature
Quiescent Current vs VIN
Burst Mode Operation
Switch Leakage vs Temperature
Valley Current Limit
vs Temperature
Track Pull-Up Current
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
Shutdown Current vs VIN
V2P5 Load Regulation
Load Step
4
100
200
300
500
8
16
3633 G11
0
600
800
700
400
610
12
14
TA = 90°C
TA = 25°C
TA = –40°C
VIN (V)
4
2
4
6
10
8
16
3633 G12
0
12
20
16
18
14
8
610
12
14
VIN (V)
–50
1000
2000
3000
5000
0
125
100
3633 G13
0
6000
7000
4000
–25
25
50
75
TEMPERATURE (°C)
MAIN SWITCH
SYNCHRONOUS SWITCH
TJ = 25°C, VIN = 12V, fSW = 1MHz, L = 1μH unless
otherwise noted.
TEMPERATURE (°C)
–50
1.4
1.6
2.0
25
75
3633 G15
1.2
1.0
–25
0
50
100
125
0.8
0.6
1.8
–50
3.4
3.5
50
3633 G14
3.3
3.7
3.6
3.9
3.8
25
–25
0
75
100
125
TEMPERATURE (°C)
0
2.496
2.498
6
3633 G16
2.494
2.502
2.500
2.506
2.504
4
28
10
ILOAD (mA)
IL
1A/DIV
SW
10V/DIV
5μs/DIV
3633 G17
VOUT
50mV/DIV
VOUT = 1.8V
ILOAD = 100mA
IL
2A/DIV
20μs/DIV
3633 G18
VOUT
AC-COUPLED
100mV/DIV
VOUT = 1.8V
ILOAD = 100mA to 3A
CITH = 220pF
RITH = 13kΩ
–50
20
40
60
80
100
120
140
25
125
3633 G10
0
160
0
–25
50
75
100
TEMPERATURE (°C)
TOP SWITCH
BOTTOM SWITCH



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