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LT3971 Datasheet(PDF) 4 Page - Linear Technology

Part # LT3971
Description  42V, 2.5A Synchronous Step-Down Regulator
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3971 Datasheet(HTML) 4 Page - Linear Technology

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LT8611
4
8611p
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency at 3.3VOUT
Efficiency vs Frequency
Reference Voltage
EN Pin Thresholds
Load Regulation
Line Regulation
Efficiency at 5VOUT
Efficiency at 3.3VOUT
Efficiency at 5VOUT
LOAD CURRENT (A)
0
80
90
100
2
8611 G01
70
60
75
85
95
65
55
50
0.5
1
1.5
2.5
VIN = 12V
VIN = 24V
fSW = 700kHz
LOAD CURRENT (A)
0
80
90
100
2
8611 G02
70
60
75
85
95
65
55
50
0.5
1
1.5
2.5
VIN = 12V
VIN = 24V
fSW = 700kHz
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
0.001
10
1000
8611 G03
0
0.1
VIN = 12V
VIN = 24V
fSW = 700kHz
LOAD CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
0.001
10
1000
8611 G04
0
0.1
VIN = 12V
VIN = 24V
fSW = 700kHz
SWITCHING FREQUENCY (MHz)
0.25
90
92
96
1.75
8611 G05
88
86
0.75
1.25
2.25
84
82
94
VIN = 12V
VIN = 24V
VOUT = 3.3V
TEMPERATURE (°C)
–55
0.955
0.958
0.964
0.967
0.970
0.985
0.976
5
65
95
125
8611 G06
0.961
0.979
0.982
0.973
–25
35
155
TEMPERATURE (°C)
–55
0.95
0.96
0.98
0.99
1.00
65
1.04
8611 G07
0.97
5
–25
95
125
35
155
1.01
1.02
1.03
EN RISING
EN FALLING
LOAD CURRENT (A)
0
–0.25
–0.15
–0.05
0.05
0.5
1
1.5
2
8611 G08
2.5
0.15
0.25
–0.20
–0.10
0
0.10
0.20
3
VOUT = 3.3V
VIN = 12V
INPUT VOLTAGE (V)
0
0.02
0.06
0.10
40
8611 G09
–0.02
–0.06
0
0.04
0.08
–0.04
–0.08
–0.10
10
5
20
15
30
35
45
25
VOUT = 3.3V
ILOAD = 0.5A



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