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LT8610AB Datasheet(PDF) 5 Page - Analog Devices

Part # LT8610AB
Description  42V, 10A/12A Peak Synchronous Step-Down Silent Switcher 2
PDF  28 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT8610AB Datasheet(HTML) 5 Page - Analog Devices

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LT8638S
5
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Frequency
Reference Voltage
12VIN to 3.3VOUT Efficiency
vs Frequency
12VIN to 5VOUT Efficiency
vs Frequency
Efficiency at 5VOUT
Light Load Efficiency at 5VOUT
Efficiency at 3.3VOUT
Light Load Efficiency at 3.3VOUT
Burst Mode Operation Efficiency
vs Inductor Value
FC MODE
EFFICIENCY
POWER LOSS
L = XGL6060
400kHz, L = 2.2µH
1MHz, L = 1µH
2MHz, L = 0.68µH
LOAD CURRENT (A)
1
2
3
4
5
6
7
8
9
10
65
70
75
80
85
90
95
100
0
0.8
1.6
2.4
3.2
4.0
4.8
5.6
8638S G01
EFFICIENCY
POWER LOSS
FC MODE
L = XGL6060
400kHz, L = 2.2µH
1MHz, L = 1µH
2MHz, L = 0.68µH
LOAD CURRENT (A)
1
2
3
4
5
6
7
8
9
10
65
70
75
80
85
90
95
100
0
0.7
1.4
2.1
2.8
3.5
4.2
4.9
8638S G02
fSW = 400kHz, L= XGL6060, 2.2µH
FC MODE
EFFICIENCY
POWER LOSS
VIN = 12V
VIN = 24V
VIN = 36V
LOAD CURRENT (A)
1
2
3
4
5
6
7
8
9
10
65
70
75
80
85
90
95
100
0
0.6
1.2
1.8
2.4
3.0
3.6
4.2
8638S G03
fSW = 400kHz, L = XGL6060, 2.2µH
FC MODE
EFFICIENCY
POWER LOSS
VIN = 12V
VIN = 24V
VIN = 36V
LOAD CURRENT (A)
1
2
3
4
5
6
7
8
9
10
65
70
75
80
85
90
95
100
0
0.6
1.2
1.8
2.4
3.0
3.6
4.2
8638S G04
fSW = 400kHz
L = XGL6060, 2.2µH
Burst Mode OPERATION
VIN = 12V
VIN = 24V
VIN = 36V
LOAD CURRENT (mA)
0.1
1
10
100
1000
10000
10
20
30
40
50
60
70
80
90
100
8638S G05
fSW = 400kHz
L = XGL6060, 2.2µH
Burst Mode OPERATION
VIN = 12V
VIN = 24V
VIN = 36V
LOAD CURRENT (mA)
0.1
1
10
100
1000
10000
0
10
20
30
40
50
60
70
80
90
100
8638S G06
VIN = 12V
VOUT = 3.3V
ILOAD = 5A
L = XGL6060, 2.2µH
SWITCHING FREQUENCY (MHz)
0.2
0.6
1
1.4
1.8
2.2
84
86
88
90
92
94
96
98
100
8638S G07
VOUT = 5V
ILOAD = 50mA
L = XGL6060
VIN=12V
VIN=24V
INDUCTOR VALUE (µH)
0.5
1.4
2.3
3.2
4.1
5
65
70
75
80
85
90
95
100
8638S G08
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
591
593
595
597
599
601
603
605
607
609
8638S G09



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