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LTC3452 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3452
Description  Synchronous Buck-Boost MAIN/CAMERA White LED Driver
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3452 Datasheet(HTML) 4 Page - Linear Technology

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4
LTC3452
3452f
TYPICAL PERFOR A CE CHARACTERISTICS
Shutdown Current vs Temperature
TEMPERATURE (
°C)
–55
12
14
16
105
3452 G01
10
8
0
–15
25
65
–35
125
5
45
85
4
2
6
20
18
VIN = 5.5V
VIN = 4.2V
VIN = 2.7V
VIN = 3.6V
VIN (V)
2.7
8
10
12
3.9
4.7
3452 G02
6
4
3.1
3.5
4.3
5.1
5.5
2
0
TA = 25°C
TEMPERATURE (
°C)
–55
1.5
1.7
2.1
2.3
2.5
–15
25
45
125
3452 G03
1.9
–35
5
65
85 105
VIN RISING
VIN FALLING
Shutdown Current vs VIN
Undervoltage Lockout Threshold
vs Temperature
Enable Thresholds vs Temperature
TEMPERATURE (
°C)
–55
200
300
500
600
700
1200
900
–15
25
45
125
3452 G04
400
1000
1100
800
–35
5
65
85 105
VIN = 3.6V
VIH
VIL
Enable Thresholds vs VIN
VIN (V)
2.7
200
300
500
600
700
1000
900
3.5
4.3
VIH
4.7
3452 G05
400
800
3.1
3.9
5.1
5.5
TA = 25°C
VIL
ISETL,H Servo Voltage
vs Temperature
TEMPERATURE (
°C)
–55
796
800
804
105
3452 G06
792
788
780
–15
25
65
–35
125
5
45
85
784
812
808
VIN = 3.6V
RISETL = 10.2k
RISETH = 4.99k
ISETL,H Servo Voltage vs VIN
Maximum Regulated VOUT
vs Temperature
VIN (V)
2.7
808
3.9
3452 G07
796
788
3.1
3.5
4.3
784
780
812
804
800
792
4.7
5.1
5.5
TA = 25°C
TEMPERATURE (
°C)
–55
4.60
–15
25
45
125
3452 G08
4.58
4.56
4.54
4.52
4.50
4.48
4.46
4.44
4.42
4.40
–35
5
65
85 105
VIN = 3.6V



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