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LTC3720 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC3720
Description  Single Phase VRM8.5 Current Mode Step-Down Controller
Download  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3720 Datasheet(HTML) 5 Page - Linear Technology

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5
LTC3720
3720f
TYPICAL PERFOR A CE CHARACTERISTICS
Error Amplifier gm vs Temperature
EXTVCC Switch Resistance
vs Temperature
RUN/SS Latchoff Thresholds
vs Temperature
TEMPERATURE (
°C)
–50
–25
1.0
1.4
2.0
0
50
75
3720 G10
1.2
1.8
1.6
25
100
125
INPUT VOLTAGE (V)
0
800
1000
1200
15
25
3720 G11
600
400
510
20
30
35
200
0
30
40
60
50
20
10
0
EXTVCC OPEN
EXTVCC = 5V
SHUTDOWN
INTVCC LOAD CURRENT (mA)
0
–0.2
–0.1
0
40
3720 G12
–0.3
–0.4
–0.5
10
20
30
50
Input and Shutdown Currents
vs Input Voltage
INTVCC Load Regulation
TEMPERATURE (
°C)
–50
–25
0
4
10
0
50
75
3720 G13
2
8
6
25
100
125
TEMPERATURE (
°C)
–50
–0.50
–0.25
0
25
75
3720 G14
–0.75
–1.00
–25
0
50
100
125
–1.25
–1.50
TEMPERATURE (
°C)
–50
–25
–2
0
3
0
50
75
3720 G15
–1
2
1
25
100
125
PULL-UP CURRENT
PULL-DOWN CURRENT
FCB Pin Current vs Temperature
RUN/SS Pin Current
vs Temperature
TEMPERATURE (
°C)
–50
3.0
3.5
4.0
4.5
5.0
–25
0
25
50
3720 G16
75
100
125
LATCHOFF ENABLE
LATCHOFF THRESHOLD
TEMPERATURE (C)
–50
2.0
2.5
3.0
3.5
4.0
–25
0
25
50
3720 G17
75
100
125
Undervoltage Lockout Threshold
vs Temperature


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