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LTC7151S Datasheet(PDF) 8 Page - Analog Devices

Part # LTC7151S
Description  Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management
PDF  38 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC7151S Datasheet(HTML) 8 Page - Analog Devices

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LT7182S
8
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
12VIN Efficiency at fSW = 1MHz,
Different VOUT
12VIN to Various VOUT Low Load
Efficiency
5VIN to 0.8VOUT Efficiency at
Different fSW
0.8VOUT Efficiency at fSW = 1MHz,
Various VIN
VOUT vs Temperature
fSW vs Temperature
EFFICIENCY
POWER LOSS
EXTVCC = 4V
1MHz, L = XGL4040-301
2MHz, L = XGL4040-150
4MHz, L = XGL3530-101
LOAD CURRENT (A)
0
1
2
3
4
5
6
7
8
9
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
7182s G04
EFFICIENCY
POWER LOSS
L = XGL4040
EXTVCC = 4V
0.4VOUT, 0.15µH
0.7VOUT, 0.30µH
1VOUT, 0.47µH
LOAD CURRENT (A)
0
1
2
3
4
5
6
7
8
9
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
7182s G02
EFFICIENCY
POWER LOSS
L = XGL5030-351
EXTVCC = 4V
VIN = 5V
VIN = 12V
VIN = 20V
LOAD CURRENT (A)
0
1
2
3
4
5
6
7
8
9
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
7182s G05
EXTVCC = 4V
fSW = 1MHz
PULSE-SKIP
FCM
3.3VOUT, L = 1µH
2.5VOUT, L = 0.82µH
1.8VOUT, L = 0.65µH
LOAD CURRENT (A)
0.001
0.01
0.1
1
10
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
7182s G03
VOUT_COMMAND = 0.4V
TEMPERATURE (°C)
–60 –40 –20 0 20 40 60 80 100 120 140 160
399.000
399.125
399.250
399.375
399.500
399.625
399.750
399.875
400.000
400.125
400.250
400.375
400.500
400.625
400.750
400.875
401.000
7182s G06
FREQUENCY_SWITCH = 4000
FREQUENCY_SWITCH = 3000
FREQUENCY_SWITCH = 2000
FREQUENCY_SWITCH = 1000
FREQUENCY_SWITCH = 400
TEMPERATURE (°C)
–60 –40 –20 0 20 40 60 80 100 120 140 160
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
7182s G07



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