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LTC3419 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC3419
Description  Dual Monolithic 600mA Synchronous Step-Down Regulator
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3419 Datasheet(HTML) 5 Page - Linear Technology

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LTC3419
5
3419f
VIN (V)
2.5
0.6
0.4
0
0.2
–0.2
–0.4
–0.6
4.0
5.0
3419 G16
3.0
3.5
4.5
5.5
VOUT = 1.8V
ILOAD = 100mA
OUTPUT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0.1
10
100
1000
3419 G10
1
VOUT = 1.2V
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
OUTPUT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0.1
10
100
1000
3419 G11
1
VOUT = 1.8V
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
OUTPUT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0.1
10
100
1000
3419 G12
1
VOUT = 2.5V
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
Load Regulation
Load Regulation
Line Regulation
Start-Up from Shutdown
Start-Up from Shutdown
OUTPUT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0.1
10
100
1000
3419 G13
1
VOUT = 1.8V
PULSE SKIP MODE
Burst Mode OPERATION
LOAD CURRENT (mA)
0
3.0
2.5
1.5
2.0
0.5
1.0
–0.5
0
–1.0
300
3419 G14
100
200
400
600
500
VOUT = 1.2V
VOUT = 1.8V
VOUT = 2.5V
Burst Mode OPERATION
LOAD CURRENT (mA)
0
2.0
1.5
0.5
1.0
–0.5
0
–1.0
300
3419 G15
100
200
400
600
500
Burst Mode OPERATION
PULSE SKIP MODE
VOUT = 1.8V
VIN = 3.6V
VOUT = 1.8V
ILOAD = 0A
RUN
2V/DIV
IL
500mA/DIV
VOUT
1V/DIV
250
μs/DIV
3419 G17
VIN = 3.6V
VOUT = 1.8V
RLOAD = 3Ω
RUN
2V/DIV
ILOAD
500mA/DIV
VOUT
1V/DIV
250
μs/DIV
3419 G18
TA = 25°C, VIN = 3.6V, unless otherwise noted.



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