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LTC3620 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3620
Description  Ultralow Power 15mA Synchronous Step-Down Switching Regulator
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3620 Datasheet(HTML) 4 Page - Linear Technology

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LTC3620
4
3620f
TYPICAL PERFORMANCE CHARACTERISTICS
Switching Frequency
vs Load Current, FMIN/MODE
Load Regulation
LTC3620 Feedback Voltage
vs Temperature
UVLO Threshold vs Temperature
LOBATB Threshold
vs Temperature
Peak Inductor Current
vs Temperature
Switching Waveforms at 250μA
Load, FMIN/MODE = 0V
LOAD CURRENT (mA)
0
–0.1
0.1
3620 G02
–0.3
–0.5
5
10
15
0.5
0.3
VIN = 3.6V
VOUT = 1.1V
FMIN/MODE = 0V
TA = 25°C
TEMPERATURE (°C)
–50
600
605
610
130
3620 G03
595
590
580
0
50
100
585
620
615
VIN = 3.6V
VOUT = 1.1V
FMIN/MODE = 0V
LTC3620-1 Feedback Voltage
vs Temperature
TEMPERATURE (°C)
–50
1.105
1.110
1.115
130
3620 G04
1.100
1.095
1.090
1.080
0
50
100
1.085
1.125
1.120
VIN = 3.6V
FMIN/MODE = 0V
Quiescent Current vs Temperature
TEMPERATURE (°C)
–50
10
12
16
18
20
30
24
0
50
3620 G05
14
26
28
22
100
130
VIN = 3.6V
VIN = 5V
VOUT = 1.1V
FMIN/MODE = VIN
TEMPERATURE (°C)
–50
2.75
2.76
2.78
2.79
2.80
2.85
2.82
0
50
3620 G06
2.77
2.83
2.84
2.81
100
130
VOUT = 1.1V
FMIN/MODE = 0V
TEMPERATURE (°C)
–50
2.95
2.96
2.98
2.99
3.00
3.05
3.02
0
50
3620 G07
2.97
3.03
3.04
3.01
100
130
VOUT = 1.1V
FMIN/MODE = 0V
TEMPERATURE (°C)
–50
34
35
36
37
38
39
40
0
50
100
130
3620 G08
VOUT = 1.1V
L = 22μH
VIN = 3.6V
VIN = 5.5V
VOUT (AC)
20mV/DIV
VSW
2V/DIV
IL
25mA/DIV
4μs/DIV
VOUT = 1.1V
VIN = 3.6V
TA = 25°C
3620 G09
LOAD CURRENT (mA)
100
1000
0.01
1
10 20
3620 G01
10
0.1
TA = 25°C
VIN = 3.6V
VOUT = 1.1V
200kHz, EXTERNAL
FMIN/MODE = 0V
FMIN/MODE = VIN



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