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LTC3124 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3124
Description  15V, 5A 2-Phase Synchronous Step-Up DC/DC Converter with Output Disconnect
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3124 Datasheet(HTML) 4 Page - Linear Technology

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LTC3124
4
3124f
For more information www.linear.com/LTC3124
TYPICAL PERFORMANCE CHARACTERISTICS
PWM Mode Operation
Load Transient Response
Inrush Current Control
Feedback vs Temperature
RDS(ON) vs Temperature,
Both NMOS and PMOS
Switching Frequency
vs Temperature
Efficiency vs Load Current,
VOUT = 5V
Efficiency vs Load Current,
VOUT = 7.5V
Efficiency vs Load Current,
VOUT = 12V
100
10
90
70
50
30
80
60
40
20
0
LOAD CURRENT (mA)
3124 G01
0.01
1000
100
PWM
10
0.1
1
VIN = 4.2V
VIN = 3.3V
VIN = 0.6V
Burst Mode
OPERATION
fSW = 1MHz
100
10
90
70
50
30
80
60
40
20
0
LOAD CURRENT (mA)
3124 G02
0.01
1000
100
PWM
10
0.1
1
VIN = 5.4V
VIN = 3.8V
VIN = 2.3V
Burst Mode
OPERATION
fSW = 1MHz
100
10
90
70
50
30
80
60
40
20
0
LOAD CURRENT (mA)
3124 G03
0.01
1000
100
PWM
10
0.1
1
VIN = 5.4V
VIN = 4.2V
VIN = 2.6V
Burst Mode
OPERATION
fSW = 1MHz
TEMPERATURE (°C)
–50
80
60
40
20
0
–20
–40
70
110
–10
3124 G08
30
150
VOUT
20mV/DIV
AC-COUPLED
PHASE A
INDUCTOR
CURRENT
500mA/DIV
PHASE B
INDUCTOR
CURRENT
500mA/DIV
2µs/DIV
ILOAD = 500mA
3124 G04
VOUT
500mV/DIV
AC-COUPLED
OUTPUT
CURRENT
500mA/DIV
500µs/DIV
RC = 169k
CC = 330pF
NO CF
3124 G05
150mA
150mA
1500mA
SD
5V/DIV
VOUT
5V/DIV
INDUCTOR A
CURRENT
1A/DIV
INDUCTOR B
CURRENT
1A/DIV
2ms/DIV
ILOAD = 100mA
3124 G06
TEMPERATURE (°C)
–40
–0.20
–0.15
–0.10
80
160
3124 G07
–0.25
–0.30
–0.35
0
40
120
–0.05
0
0.05
TEMPERATURE (°C)
–50 –20
–2.0
–1.0
0.5
10
70
100
3124 G09
–1.5
0
–0.5
40
130 160
Configured as front page application at TA = 25°C, unless otherwise specified.



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