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LTC3620 Datasheet(PDF) 6 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) 6 Page - Linear Technology

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LTC3620
6
3620f
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current, VOUT
Efficiency vs Load Current,
FMIN/MODE Frequency
Efficiency vs Load Current, VIN
Efficiency vs fMIN, 1mA Load
Internal fMIN vs Temperature
Spectral Content, 500μA Load
Spectral Content, 5mA Load
NFET RDS(ON) vs Temperature
TEMPERATURE (°C)
–50
1.1
1.2
1.3
3620 G19
1.0
0.9
0.5
0.6
0
50
100
130
0.8
0.7
1.5
1.4
ISW = 35mA
VIN = 3.6V
VIN = 5V
LOAD CURRENT (mA)
0.1
40
50
60
70
80
110
3620 G20
30
20
10
0
90
100
VOUT = 1.1V
VOUT = 1.8V
VOUT = 2.5V
TA = 25°C
VIN = 3V
FMIN/MODE = 0V
fMIN (kHz)
0
71
72
74
75
76
81
78
100
200
3620 G23
73
79
80
77
300
TA = 25°C
VIN = 3.6V
VOUT = 1.1V
FMIN/MODE = EXTERNAL CLOCK
TEMPERATURE (°C)
–50
45
46
48
49
50
55
52
0
50
3620 G24
47
53
54
51
100
VIN = 3.6V
VIN = 5V
–60
–80
–100
–120
–140
–160
8kHz/DIV
3620 G25
VOUT = 1.1V
VIN = 3.6V
FMIN/MODE = 0V
TA = 25°C
52.5kHz
–81.4dBm
12.5kHz
92.5kHz
39.9kHz/DIV
3620 G26
VOUT = 1.1V
VIN = 3.6V
FMIN/MODE = 0V
TA = 25°C
–60
–40
–80
–100
–120
–140
355.6kHz
–80.2dBm
1kHz
400kHz
LOAD CURRENT (mA)
0.1
40
50
60
70
80
110
3620 G21
30
20
10
0
90
100
FMIN = 20kHz
FMIN = 100kHz
FMIN = 200kHz
TA = 25°C
VIN = 3V
VOUT = 1.1V
LOAD CURRENT (mA)
0.1
40
50
60
70
80
110
3620 G22
30
20
10
0
90
100
VIN = 3V
VIN = 3.6V
VIN = 5.5V
TA = 25°C
VOUT = 1.1V
FMIN/MODE = VIN



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