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LTC3407EDD-3 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3407EDD-3
Description  Dual Synchronous, 1.8V/0.8A and 3.3V/0.8A 2.25MHz Step-Down DC/DC Regulator
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3407EDD-3 Datasheet(HTML) 4 Page - Linear Technology

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LTC3407-3
4
34073fa
Efficiency vs VIN
Efficiency vs Load Current
Load Regulation
Line Regulation
TYPICAL PERFOR A CE CHARACTERISTICS
Reference Voltage vs
Temperature
RDS(ON) vs Input Voltage
RDS(ON) vs Temperature
0.615
0.610
0.605
0.600
0.595
0.590
0.585
TEMPERATURE (
°C)
–50
25
75
34073 G07
–25
0
50
100
125
VIN = 3.6V
VIN (V)
1
500
450
400
350
300
250
200
46
34073 G08
2
3
57
MAIN
SWITCH
SYNCHRONOUS
SWITCH
TEMPERATURE (
°C)
–50
550
500
450
400
350
300
250
200
150
100
25
75
34073 G09
–25
0
50
100
150
125
MAIN SWITCH
SYNCHRONOUS SWITCH
VIN = 4.2V
VIN = 3.6V
INPUT VOLTAGE (V)
2
34073 G10
3
45
6
100
95
90
85
80
75
70
65
60
55
50
VOUT = 1.8V
Burst Mode OPERATION
CH2 OFF
800mA
10mA
100mA
1mA
LOAD CURRENT (mA)
1
80
90
100
10
100
1000
34073 G14
70
75
85
95
65
60
VIN = 5V,
VOUT = 3.3V
NO LOAD ON
OTHER CHANNEL
Burst Mode OPERATION
PULSE SKIP MODE
Efficiency vs Load Current
LOAD CURRENT (mA)
1
100
90
80
70
60
10
100
1000
34073 G11
VIN = 3.6V, VOUT = 1.8V
NO LOAD ON OTHER CHANNEL
Burst Mode OPERATION
PULSE SKIP MODE
LOAD CURRENT (mA)
1
4
3
2
1
0
–1
–2
–3
–4
10
100
1000
34073 G12
VIN = 3.6V, VOUT = 1.8V
NO LOAD ON OTHER CHANNEL
Burst Mode OPERATION
PULSE SKIP MODE
Load Regulation
LOAD CURRENT (mA)
1
0
2
4
10
100
1000
34073 G13
–2
–1
1
3
–3
–4
VIN = 5V, VOUT = 3.3V
NO LOAD ON OTHER CHANNEL
Burst Mode OPERATION
PULSE SKIP MODE
VIN (V)
2
–0.20
0
0.20
0.40
6
34073 G15
–0.40
–0.60
–1.00
–0.80
3
4
5
0.80
0.60
VOUT = 1.8V
IOUT = 200mA
TA = 25°C unless other wise specified.


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