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LTC3620EDC-1#TRMPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LTC3620
4
3620fa
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
V
OUT
VOLTAGE CHANGE (%)
–0.1
0.1
3620 G02
–0.3
–0.5
5
10
15
0.5
0.3
V
IN
= 3.6V
V
OUT
= 1.1V
FMIN/MODE = 0V
T
A
= 25°C
TEMPERATURE (°C)
–50
V
FB
(mV)
600
605
610
130
3620 G03
595
590
580
0
50
100
585
620
615
V
IN
= 3.6V
V
OUT
= 1.1V
FMIN/MODE = 0V
LTC3620-1 Feedback Voltage
vs Temperature
TEMPERATURE (°C)
–50
V
FB
(V)
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
V
IN
= 3.6V
FMIN/MODE = 0V
Quiescent Current vs Temperature
TEMPERATURE (°C)
–50
10
QUIESCENT CURRENT (µA)
12
16
18
20
30
24
0
50
3620 G05
14
26
28
22
100 130
V
IN
= 3.6V
V
IN
= 5V
V
OUT
= 1.1V
FMIN/MODE = V
IN
TEMPERATURE (°C)
–50
2.75
UVLO THRESHOLD (V)
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
V
OUT
= 1.1V
FMIN/MODE = 0V
TEMPERATURE (°C)
–50
2.95
LOBATB THRESHOLD (V)
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
V
OUT
= 1.1V
FMIN/MODE = 0V
TEMPERATURE (°C)
–50
34
I
PEAK
(mA)
35
36
37
38
39
40
0 50 100 130
3620 G08
V
OUT
= 1.1V
L = 22µH
V
IN
= 3.6V
V
IN
= 5.5V
V
OUT
(AC)
20mV/DIV
V
SW
2V/DIV
I
L
25mA/DIV
4µs/DIVV
OUT
= 1.1V
V
IN
= 3.6V
T
A
= 25°C
3620 G09
LOAD CURRENT (mA)
100
SWITCHING FREQUENCY (kHz)
1000
0.01 1 10 20
3620 G01
10
0.1
T
A
= 25°C
V
IN
= 3.6V
V
OUT
= 1.1V
200kHz, EXTERNAL
FMIN/MODE = 0V
FMIN/MODE = V
IN
LTC3620
5
3620fa
TYPICAL PERFORMANCE CHARACTERISTICS
Switching Waveforms at 12mA
Load, FMIN/MODE = 0V
Switching Waveforms at 250µA
Load, FMIN/MODE = 200kHz Clock
Switching Waveforms at 1mA
Load, FMIN/MODE = 200kHz Clock
Switching Waveforms at 12mA
Load, FMIN/MODE = 200kHz
Start-Up Waveforms
Transient Response, 250µA to 3mA
Step, FMIN/MODE = 0V
Transient Response, 1mA to 10mA
Step, FMIN/MODE = 0V
PFET R
DS(ON)
vs Temperature
Switching Waveforms at 1mA
Load, FMIN/MODE = 0V
V
OUT
(AC)
20mV/DIV
V
SW
2V/DIV
I
L
25mA/DIV
4µs/DIVV
OUT
= 1.1V
V
IN
= 3.6V
T
A
= 25°C
3620 G10
V
OUT
(AC)
20mV/DIV
V
SW
2V/DIV
I
L
25mA/DIV
400ns/DIVV
OUT
= 1.1V
V
IN
= 3.6V
T
A
= 25°C
3620 G11
V
FMIN/MODE
1V/DIV
V
SW
2V/DIV
V
OUT
(AC)
20mV/DIV
I
L
25mA/DIV
2µs/DIVV
OUT
= 1.1V
V
IN
= 3.6V
T
A
= 25°C
3620 G12
V
FMIN/MODE
1V/DIV
V
SW
2V/DIV
V
OUT
(AC)
20mV/DIV
I
L
25mA/DIV
2µs/DIVV
OUT
= 1.1V
V
IN
= 3.6V
T
A
= 25°C
3620 G13
V
FMIN/MODE
1V/DIV
V
SW
2V/DIV
V
OUT
(AC)
20mV/DIV
I
L
25mA/DIV
400ns/DIVV
OUT
= 1.1V
V
IN
= 3.6V
T
A
= 25°C
3620 G14
V
OUT
200mV/DIV
I
L
25mA/DIV
200µs/DIVV
OUT
= 1.1V
V
IN
= 3.6V
I
OUT
= 0mA
FMIN/MODE = 0V
T
A
= 25°C
3620 G15
V
OUT
(AC)
10mV/DIV
I
LOAD
5mA/DIV
4ms/DIVV
IN
= 3.6V
V
OUT
= 1.1V
T
A
= 25°C
3620 G16
V
OUT
(AC)
20mV/DIV
I
LOAD
5mA/DIV
4ms/DIVV
IN
= 3.6V
V
OUT
= 1.1V
T
A
= 25°C
3620 G17
TEMPERATURE (°C)
–50
R
DS(ON)
()
1.5
1.7
1.9
3620 G18
1.3
1.1
0.5
0
50
100 130
0.9
0.7
2.3
2.1
I
SW
= 35mA
V
IN
= 3.6V
V
IN
= 5V
LTC3620
6
3620fa
TYPICAL PERFORMANCE CHARACTERISTICS
Effi ciency vs Load Current, V
OUT
Effi ciency vs Load Current,
FMIN/MODE Frequency
Effi ciency vs Load Current, V
IN
Effi ciency vs f
MIN
, 1mA Load Internal f
MIN
vs Temperature
Spectral Content, 500µA Load Spectral Content, 5mA Load
NFET R
DS(ON)
vs Temperature
TEMPERATURE (°C)
–50
R
DS(ON)
()
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
I
SW
= 35mA
V
IN
= 3.6V
V
IN
= 5V
LOAD CURRENT (mA)
0.1
40
EFFICIENCY (%)
50
60
70
80
110
3620 G20
30
20
10
0
90
100
V
OUT
= 1.1V
V
OUT
= 1.8V
V
OUT
= 2.5V
T
A
= 25°C
V
IN
= 3V
FMIN/MODE = 0V
f
MIN
(kHz)
0
71
EFFICIENCY (%)
72
74
75
76
81
78
100
200
3620 G23
73
79
80
77
300
T
A
= 25°C
V
IN
= 3.6V
V
OUT
= 1.1V
FMIN/MODE = EXTERNAL CLOCK
TEMPERATURE (°C)
–50
45
INTERNAL f
MIN
(kHz)
46
48
49
50
55
52
0
50
3620 G24
47
53
54
51
100
V
IN
= 3.6V
V
IN
= 5V
–60
–80
–100
POWER RATIO (dBm)
–120
–140
–160
8kHz/DIV
3620 G25
V
OUT
= 1.1V
V
IN
= 3.6V
FMIN/MODE = 0V
T
A
= 25°C
52.5kHz
–81.4dBm
12.5kHz 92.5kHz
39.9kHz/DIV
3620 G26
V
OUT
= 1.1V
V
IN
= 3.6V
FMIN/MODE = 0V
T
A
= 25°C
–60
–40
–80
–100
POWER RATIO (dBm)
–120
–140
355.6kHz
–80.2dBm
1kHz 400kHz
LOAD CURRENT (mA)
0.1
40
EFFICIENCY (%)
50
60
70
80
110
3620 G21
30
20
10
0
90
100
FMIN = 20kHz
FMIN = 100kHz
FMIN = 200kHz
T
A
= 25°C
V
IN
= 3V
V
OUT
= 1.1V
LOAD CURRENT (mA)
0.1
40
EFFICIENCY (%)
50
60
70
80
110
3620 G22
30
20
10
0
90
100
V
IN
= 3V
V
IN
= 3.6V
V
IN
= 5.5V
T
A
= 25°C
V
OUT
= 1.1V
FMIN/MODE = V
IN
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LTC3620EDC-1#TRMPBF

Mfr. #:
Buy LTC3620EDC-1#TRMPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Ultralow Power 15mA High Efficiency Step Down Switching Regulator
Lifecycle:
New from this manufacturer.
Delivery:
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