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LT3757 Datasheet(PDF) 5 Page - Linear Technology

Part # LT3757
Description  PolyPhase Synchronous Boost Controller
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3757 Datasheet(HTML) 5 Page - Linear Technology

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LTC3787
5
3787fc
TYPICAL PERFORMANCE CHARACTERISTICS
Load Step
Burst Mode Operation
Load Step
Forced Continuous Mode
Load Step
Pulse-Skipping Mode
Efficiency and Power Loss
vs Output Current
Efficiency and Power Loss
vs Output Current
Efficiency vs Load Current
OUTPUT CURRENT (A)
40
50
60
70
80
10
3787 G01
30
20
10
0
90
100
10
100
1000
1
0.1
10000
0.01
0.1
1
BURST EFFICIENCY
PULSE-SKIPPING
EFFICIENCY
FORCED CONTINUOUS
MODE EFFICIENCY
BURST LOSS
PULSE-SKIPPING
LOSS
FORCED CONTINUOUS
MODE LOSS
VIN = 12V
VOUT = 24V
FIGURE 10 CIRCUIT
OUTPUT CURRENT (A)
40
50
60
70
80
3787 G02
30
20
10
0
90
100
10
100
1000
1
0.1
10000
0.01
0.1
1
10
BURST EFFICIENCY
BURST LOSS
VIN = 12V
VOUT = 24V
Burst Mode OPERATION
FIGURE 10 CIRCUIT
0.0001 0.001
0.00001
INPUT VOLTAGE (V)
0
90
92
94
96
5
10
15
20
98
100
91
93
95
97
99
25
3787 G03
VOUT = 12V
VIN = 12V
ILOAD = 2A
FIGURE 10 CIRCUIT
VOUT = 24V
VOUT
500mV/DIV
INDUCTOR
CURRENT
5A/DIV
LOAD STEP
5A/DIV
VIN = 12V
VOUT = 24V
LOAD STEP FROM 100mA TO 5A
FIGURE 10 CIRCUIT
200μs/DIV
3787 G04
VOUT
500mV/DIV
INDUCTOR
CURRENT
5A/DIV
LOAD STEP
5A/DIV
VIN = 12V
VOUT = 24V
LOAD STEP FROM 100mA TO 5A
FIGURE 10 CIRCUIT
200μs/DIV
3787 G05
VOUT
500mV/DIV
INDUCTOR
CURRENT
5A/DIV
LOAD STEP
5A/DIV
VIN = 12V
VOUT = 24V
LOAD STEP FROM 100mA TO 5A
FIGURE 10 CIRCUIT
200μs/DIV
3787 G06



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