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LTC3853 数据表(PDF) 7 Page - Linear Technology

部件名 LTC3853
功能描述  Triple Output, Multiphase Synchronous Step-Down Controller
PDF  36 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3853 数据表(HTML) 7 Page - Linear Technology

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LTC3853
7
3853fc
For more information www.linear.com/LTC3853
TYPICAL PERFORMANCE CHARACTERISTICS
TK/SS Pull-Up Current
vs Temperature
Shutdown (RUN) Threshold
vs Temperature
Regulated Feedback Voltage
vs Temperature
Oscillator Frequency
vs Temperature
Undervoltage Lockout Threshold
(INTVCC) vs Temperature
Oscillator Frequency
vs Input Voltage
TEMPERATURE (°C)
3853 G17
–60 –40 –20
20 40
80 100
140
1.30
1.35
1.40
1.45
1.50
1.60
0
60
120
160
1.55
TEMPERATURE (°C)
0.9
1.0
1.1
1.2
1.3
1.4
ON
3853 G18
OFF
–60 –40 –20
20 40
80 100
140
0
60
120
160
TEMPERATURE (°C)
806
804
802
800
798
796
794
3853 G19
–60 –40 –20
20 40
80 100
140
0
60
120
160
–60 –40 –20
20 40
80 100
140
0
60
120
160
TEMPERATURE (°C)
600
700
900
3853 G20
500
400
300
200
800
VFREQ = INTVCC
VFREQ = 1.2V
VFREQ = 0V
TEMPERATURE (°C)
–50
3.75
4.00
4.25
25
75
150
3853 G21
3.50
3.25
3.00
–25
0
50
100 125
RISING
FALLING
INPUT VOLTAGE (V)
5
400
450
25
3853 G22
350
300
10
15
20
500
Shutdown Current
vs Input Voltage
Shutdown Current
vs Temperature
Quiescent Current
vs Temperature Without EXTVCC
INPUT VOLTAGE (V)
5
40
50
25
3853 G23
30
20
10
15
20
60
TEMPERATURE (°C)
3853 G24
–60 –40 –20
20 40
80 100
140
20
25
30
35
40
60
0
60
120
160
50
45
55
TEMPERATURE (°C)
3853 G25
–60 –40 –20
20 40
80 100
140
3.0
3.5
4.0
4.5
5.0
6.0
0
60
120
160
5.5



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