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LTC3561A Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3561A
Description  1A, 4MHz, Synchronous Step-Down DC/DC Converter
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3561A Datasheet(HTML) 4 Page - Linear Technology

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LTC3561A
4
3561af
Efficiency vs Frequency
Load Regulation
Line Regulation
Reference Voltage vs
Temperature
Frequency Variation vs
Temperature
Frequency Variation vs VIN
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Input Voltage
Efficiency vs Output Current
Efficiency vs Output Current
TA = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted.
INPUT VOLTAGE (V)
2.5
50
60
70
80
3.0
3.5
4.0
4.5
3561A G01
5.0
90
100
55
65
75
85
95
5.5
IOUT = 100mA
VOUT = 1.8V
IOUT = 10mA
IOUT = 1A
OUTPUT CURRENT (mA)
110
0
40
30
100
1000
100
10000
3561A G02
20
10
60
50
80
70
90
VOUT = 1.8V
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
OUTPUT CURRENT (mA)
110
0
40
30
100
1000
100
10000
3561A G03
20
10
60
50
80
70
90
VOUT = 1.5V
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
FREQUENCY (MHz)
95
94
93
92
91
90
89
88
3561A G05
03
5
12
4
VOUT = 1.8V
ILOAD = 400mA
4.7μH
1μH
2.2μH
OUTPUT CURRENT(mA)
0.4
0.3
0.2
0.1
0
–0.1
–0.2
3561A G06
0
600
1000 1200 1400
200
400
800
VOUT = 1.8V
INPUT VOLTAGE(V)
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
3561A G07
2.5
4.0
5.0
5.5
3.0
3.5
4.5
VOUT = 1.8V
ILOAD = 400mA
TEMPERATURE(°C)
815
810
805
800
795
790
785
3561A G08
–50
25
75
100
125
–25
0
50
TEMPERATURE(°C)
6
4
2
0
–2
–4
–6
3561A G09
–50
25
75
100
125
–25
0
50
VIN (V)
6
4
2
0
–2
–4
–6
–8
3561A G10
2.5
4.0
5.0
5.5
3.0
3.5
4.5



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