LTC3406B-2 Datasheet, PDF (3/16 Pages) Linear Technology – 2.25MHz, 600mA Synchronous Step-Down Regulator in ThinSOT

TYPICAL PERFOR A CE CHARACTERISTICS
(From Figure 1a Except for the Resistive Divider Resistor Values)
LTC3406B-2
Efficiency vs Input Voltage
100
T_A = 25°C
95
I_OUT = 100mA
90
85
I_OUT = 600mA
80
I_OUT = 10mA
75
70
65
2
3
4
5
INPUT VOLTAGE (V)
6
3406B G01
Efficiency vs Output Current
100
V_OUT = 2.5V
90 ^TA ^{= 25°C}
80
V_IN = 2.7V
70
V_IN = 4.2V
60
V_IN = 3.6V
50
40
30
20
10
0.1
1
10
100
OUTPUT CURRENT (mA)
1000
3406B G04
Oscillator Frequency vs
Supply Voltage
2.70
T_A = 25°C
2.55
2.40
2.25
2.10
1.95
1.80
2
3
4
5
SUPPLY VOLTAGE (V)
6
3406B G07
Efficiency vs Output Current
100
V_OUT = 1.2V
90 TA = 25°C
80
70
60
V_IN = 2.7V
50
V_IN = 4.2V
40
V_IN = 3.6V
30
20
10
0.1
1
10
100
OUTPUT CURRENT (mA)
1000
3406B G02
Reference Voltage vs
Temperature
0.614
V_IN = 3.6V
0.609
0.604
0.599
0.594
0.589
0.584
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3406B G05
Output Voltage vs Load Current
1.844
V_IN = 3.6V
1.834 ^{TA = 25°C}
1.824
1.814
1.804
1.794
1.784
1.774
0
100 200 300 400 500 600 700 800 900
LOAD CURRENT (mA)
3406B G08
Efficiency vs Output Current
100 _{VOUT = 1.5V}
90 ^TA ^{= 25°C}
80
70
60 ^{VIN = 2.7V}
V_IN = 3.6V
50
V_IN = 4.2V
40
30
20
10
0.1
1
10
100
OUTPUT CURRENT (mA)
1000
3406B G03
Oscillator Frequency vs
Temperature
2.55
V_IN = 3.6V
2.40
2.25
2.10
1.95
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3406B G06
R_DS(ON) vs Input Voltage
0.7
T_A = 25°C
0.6
0.5
MAIN
SWITCH
0.4
0.3
SYNCHRONOUS
SWITCH
0.2
0.1
0
0 12 3 45 6 7
INPUT VOLTAGE (V)
3406B G09
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