Datasheet

3
LTC3406-1.2
340612fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Efficiency vs Input Voltage
Efficiency and Power Loss
Reference Voltage vs
Temperature
Oscillator Frequency vs
Temperature
(From Figure 1)
TEMPERATURE (°C)
–50
REFERENCE VOLTAGE (V)
1.178
1.188
1.198
1.208
1.218
1.228
1.168
25 75
–25 0
50 100 125
V
IN
= 3.6V
340612 G03
TEMPERATURE (°C)
–50
FREQUENCY (MHz)
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
25 75
–25 0
50 100 125
V
IN
= 3.6V
340612 G04
INPUT VOLTAGE (V)
2
EFFICIENCY (%)
6
340612 G01
3
4
5
100
95
90
85
80
75
70
I
OUT
= 600mA
I
OUT
= 100mA
I
OUT
= 10mA
I
LOAD
(mA)
0.1
EFFICIENCY (%)
10
1000
100
90
80
70
60
50
40
340612 GO2
1 100
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
LOAD CURRENT (mA)
0
OUTPUT VOLTAGE (V)
500200 300 400 600 800100
1.225
1.215
1.205
1.195
1.185
1.175
340612 G06
1000900700
Oscillator Frequency vs
Supply Voltage Output Voltage vs Load Current
SUPPLY VOLTAGE (V)
2
OSCILLATOR FREQUENCY (MHz)
1.8
1.7
1.6
1.5
1.4
1.3
1.2
34 56
340612 G05
T
A
= 25°C
TEMPERATURE (°C)
–50
0.4
0.5
0.7
25 75
340612 G08
0.3
0.2
–25 0
50 100 125
0.1
0
0.6
R
DS(ON)
(Ω)
MAIN SWITCH
SYNCHRONOUS SWITCH
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
SUPPLY VOLTAGE (V)
2
0
SUPPLY CURRENT (µA)
5
15
20
25
50
35
3
4
340612 G09
10
40
45
30
5
6
I
LOAD
= 0A
R
DS(ON)
vs Input Voltage
INPUT VOLTAGE (V)
10
0.4
0.5
0.7
46
340612 G07
0.3
0.2
23
57
0.1
0
0.6
R
DS(ON)
(Ω)
MAIN
SWITCH
SYNCHRONOUS
SWITCH
T
A
= 25°C
R
DS(ON)
vs Temperature Supply Current vs Supply Voltage
T
A
= 25°C unless otherwise specified.