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LTC3409A Datasheet(PDF) 4 Page - Linear Technology

Part No. LTC3409A
Description  600mA Low VIN Buck Regulator in 3mm 3mm DFN
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC3409A Datasheet(HTML) 4 Page - Linear Technology

 
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LTC3409A
4
3409af
(TA = 25°C, from Typical Application on the front page except for the resistive divider resistor values)
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Input Voltage
VOUT = 1.2V, Pulse-Skipping
Efficiency vs Load Current,
VOUT = 1.2V
Reference Voltage
vs Temperature
Pulse-Skipping Efficiency/Power
Lost vs Load Current, VOUT = 1.8V
Efficiency vs Input Voltage,
VOUT = 1.2V, Burst Mode Operation
Efficiency vs Load Current,
VOUT = 2.5V
Oscillator Frequency
vs Temperature
Oscillator Frequency Shift
vs Input Voltage
TEMPERATURE (°C)
–50
2.1
2.4
2.7
2.6
2.5
2.2
2.3
1.9
2.0
1.6
1.7
1.3
1.4
25
75
125
100
3409A G07
1.8
1.5
1.2
–25
0
50
VIN = 1.6V
VIN = 1.6V
VIN = 2.7V
VIN = 2.7V
OSC 2.6MHz
OSC 1.7MHz
VIN = 4.2V
VIN = 4.2V
INPUT VOLTAGE (V)
1.5
–2
0
2
fLOW
1.7MHz
fHIGH
2.6MHz
5.5
3409A G08
–4
–6
–10
2.5
3.5
4.5
–8
6
4
LOAD CURRENT (mA)
0
100
60
70
80
90
40
20
50
30
10
0
1
0.01
0.1
0.001
10
3409A G01
1000
100
1
VIN = 2.5V
VIN = 3.6V
VIN = 4.2V
VIN = 2.5V
VIN = 3.6V
VIN = 4.2V
EFFICIENCY
POWER LOST
INPUT VOLTAGE (VIN)
100
60
70
80
90
40
20
50
30
10
0
2.6
3409A G02
4.6
5.5
3.6
1.6
IOUT = 0.1mA
IOUT = 1mA
IOUT = 10mA
IOUT = 100mA
IOUT = 600mA
INPUT VOLTAGE (VIN)
100
60
70
80
90
40
20
50
30
10
0
2.5
3409A G03
4.5
5.5
3.5
1.5
IOUT = 0.1mA
IOUT = 1mA
IOUT = 100mA
IOUT = 10mA
IOUT = 600mA
LOAD CURRENT (mA)
100
60
70
80
90
40
20
50
30
10
0
1
3409A G04
100
1000
10
0.1
2.7VIN
2.7VIN
4.2VIN
4.2VIN
3.6VIN
3.6VIN
BURST
PULSE-SKIPPING
LOAD CURRENT (mA)
100
60
70
80
90
40
20
50
30
10
0
1
3409A G05
100
1000
10
0.1
1.6VIN
1.6VIN
3.1VIN
3.1VIN
2.5VIN
2.5VIN
BURST
PULSE-SKIPPING
TEMPERATURE (°C)
0.616
0.614
0.615
0.612
0.610
0.613
0.611
0.609
0.608
–30
3409A G06
125
110
90
70
50
30
10
–10
–50


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