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LTC3565 датащи(PDF) 4 Page - Linear Technology

номер детали LTC3565
подробное описание детали  1.25A, 4MHz, Synchronous Step-Down DC/DC Converter
PDF  22 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC3565 датащи(HTML) 4 Page - Linear Technology

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LTC3565

3565fa
Efficiency vs Output Current
Efficiency vs Frequency
Load Regulation
Line Regulation
Reference Voltage vs
Temperature
Frequency Variation vs
Temperature
OUTPUT CURRENT (mA)
0.1
1
10
0
40
30
100
1000
100
10000
3565 G04
20
10
60
50
80
70
90
VOUT = 1.8V
Burst Mode
OPERATION
FORCED CONTINUOUS
PULSE
SKIP
FREQUENCY (MHz)
95
94
93
92
91
90
89
88
3565 G05
0
3
5
1
2
4
VOUT = 1.8V
4.7µH
1µH
2.2µH
INPUT VOLTAGE(V)
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
3565 G07
2.5
4.0
5.0
5.5
3.0
3.5
4.5
VOUT = 1.8V
ILOAD = 400mA
TEMPERATURE(°C)
6
4
2
0
–2
–4
–6
3565 G09
–50
25
75
100 125
–25
0
50
OUTPUT CURRENT(mA)
1.00
0.75
0.50
0.25
0.00
–0.25
–0.50
3565 G06
0
600
1000 1200 1400
200 400
800
VOUT = 1.8V
FORCED CONTINUOUS
Burst Mode OPERATION
PULSE SKIP
TEMPERATURE (°C)
–50
605
610
615
25
75
3565 G08
600
595
–25
0
50
100
125
590
585
typical perForMance characteristics
Efficiency vs Input Voltage
Efficiency vs Output Current
Efficiency vs Output Current
TJ = 25°C, VIN = 3.6V, fO = 1MHz, unless
otherwise noted.
INPUT VOLTAGE(V)
2.5
100
90
80
70
60
50
40
30
4.0
5.0
3565 G01
3.0
3.5
4.5
5.5
IOUT = 100mA
IOUT = 1.25A
VOUT = 1.8V
IOUT = 1mA
IOUT = 0.1mA
IOUT = 10mA
OUTPUT CURRENT (mA)
0.1
1
10
0
40
30
100
1000
100
10000
3565 G02
20
10
60
50
80
70
90
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
VOUT = 1.8V
OUTPUT CURRENT (mA)
0.1
1
10
0
40
30
100
1000
100
10000
3565 G03
20
10
60
50
80
70
90
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
VOUT = 1.5V



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