LTC3406AI Просмотр технического описания (PDF) - Linear Technology
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LTC3406AI Datasheet PDF : 16 Pages
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LTC3406A
TYPICAL PERFORMANCE CHARACTERISTICS
(From Front Page Figure Except for the Resistive Divider Resistor Values)
Output vs Load Current
1.820 VOUT = 1.8V
1.816
1.812
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
1.808
1.804
1.800
1.796
1.792
1.788
1.784
1.780
0
200
400
600
OUTPUT CURRENT (mA)
3406A G04
Efficiency vs Input Voltage
100
90
80
70
60
50
40
30
20
IL = 10mA
10
0 VOUT = 2.5V
IL = 100mA
IL = 600mA
2
3
4
5
6
INPUT VOLTAGE (V)
3406A G05
Reference Voltage vs
Temperature
0.615
VIN = 3.6V
0.610
0.605
0.600
0.595
0.590
0.585
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3406A G06
Oscillator Frequency vs
Temperature
1.60
VIN = 3.6V
1.55
1.50
1.45
1.40
1.35
1.30
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3406A G07
Oscillator Frequency vs
Input Voltage
1.60
Burst Mode
1.55
SW
1.50
2V/DIV
1.45
VOUT
20mV/DIV
1.40
AC COUPLED
1.35
IL
200mA/DIV
1.30
1.25
1.20
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
INPUT VOLTAGE (V)
3406A G08
VIN = 3.6V
4μs/DIV
VOUT = 1.8V
ILOAD = 10mA
Burst Mode OPERATION
3406A G09
RDS(ON) vs Input Voltage
0.40
0.35
0.30
MAIN SWITCH
0.25
SYNCHRONOUS
SWITCH
0.20
0.15
0.10
01
2 34 5
INPUT VOLTAGE (V)
67
3406A G10
RDS(ON) vs Temperature
0.40
0.35
VIN = 2.7V
VIN = 3.6V
0.30
0.25
VIN = 4.2V
0.20
0.15
0.10
0.05
0
–50 –25
SYNCHRONOUS SWITCH
MAIN SWITCH
0 25 50 75 100 125
TEMPERATURE (°C)
3406A G11
4
Dynamic Supply Current
10
9
VOUT = 1.2V
ILOAD = 0A
8
7
6
5
4
3
2
1
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
INPUT VOLTAGE (V)
3406A G12
3406afa
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