Datasheet

LTC3406A
4
3406afa
TEMPERATURE (°C)
–50
OSCILLATOR FREQUENCY (MHz)
1.50
1.55
1.60
25 75
3406A G07
1.45
1.40
–25 0
50 100 125
1.35
1.30
V
IN
= 3.6V
INPUT VOLTAGE (V)
2.0
OSCILLATOR FREQUENCY (MHz)
1.40
1.50
6.0
3406A G08
1.30
1.20
3.0
4.0
5.0
2.5
3.5
4.5
5.5
1.60
1.35
1.45
1.25
1.55
INPUT VOLTAGE (V)
0
R
DS(0N)
(Ω)
0.30
0.35
0.40
35
3406A G10
0.25
0.20
12
467
0.15
0.10
MAIN SWITCH
SYNCHRONOUS
SWITCH
TEMPERATURE (°C)
–50
R
DS(ON)
(Ω)
0.35
25
3406A G11
0.20
0.10
–25 0 50
0.05
0
0.40
0.30
0.25
0.15
75 100 125
SYNCHRONOUS SWITCH
MAIN SWITCH
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
INPUT VOLTAGE (V)
2.0
0
DYNAMIC SUPPLY CURRENT (μA)
1
3
4
5
10
7
3.0
4.0
4.5
3406A G12
2
8
9
6
2.5 3.5
5.0
5.5
6.0
V
OUT
= 1.2V
I
LOAD
= 0A
Oscillator Frequency vs
Temperature
Oscillator Frequency vs
Input Voltage Burst Mode
R
DS(ON)
vs Input Voltage R
DS(ON)
vs Temperature Dynamic Supply Current
TYPICAL PERFORMANCE CHARACTERISTICS
(From Front Page Figure Except for the Resistive Divider Resistor Values)
SW
2V/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 10mA
Burst Mode OPERATION
4μs/DIV
3406A G09
V
OUT
20mV/DIV
AC COUPLED
I
L
200mA/DIV
OUTPUT CURRENT (mA)
0
1.780
OUTPUT VOLTAGE (V)
1.788
1.792
1.796
1.800
1.804
1.808
200
400
3406A G04
1.812
1.816
1.820
1.784
600
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
OUT
= 1.8V
INPUT VOLTAGE (V)
2345
3406A G05
6
0
EFFICIENCY (%)
20
10
30
50
70
40
60
80
90
100
I
L
= 10mA
I
L
= 100mA
I
L
= 600mA
V
OUT
= 2.5V
TEMPERATURE (°C)
–50
REFERENCE VOLTAGE (V)
0.605
0.610
0.615
25 75
3406A G06
0.600
0.595
–25 0
50 100 125
0.590
0.585
V
IN
= 3.6V
Output vs Load Current
Effi ciency vs Input Voltage
Reference Voltage vs
Temperature