LTC3406AB Datasheet, PDF (4/16 Pages) Linear Technology – 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT

LTC3406AB
TYPICAL PERFORMANCE CHARACTERISTICS
(From Front Page Figure Except for the Resistive Divider Resistor Values)
Oscillator Frequency vs
Temperature
1.60
V_IN = 3.6V
1.55
1.50
Oscillator Frequency vs Supply
Voltage
1.60
1.55
1.50
1.45
1.45
1.40
1.40
1.35
1.30
1.35
1.25
1.30
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3406B G22
1.20
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
INPUT VOLTAGE (V)
3406B G07
Output vs Load Current
1.820
V_OUT = 1.8V
1.816
1.812
1.808
1.804
1.800
1.796
1.792
1.788
1.784
1.780
0
V_IN = 2.7V
V_IN = 3.6V
V_IN = 4.2V
200
400
600
OUTPUT CURRENT (mA)
3406B G24
R_DS(ON) vs Input Voltage
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0
MAIN SWITCH
SYNCHRONOUS SWITCH
1 2 34 5
INPUT VOLTAGE (V)
67
3406B G25
Dynamic Supply Current vs
Temperature
300
V_IN = 3.6V
V_OUT = 1.2V
250 _{ILOAD = 0A}
200
150
100
50
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3406B G28
4
R_DS(ON) vs Input Voltage
0.40
0.35
V_IN = 2.7V
V_IN = 3.6V
0.30
0.25
V_IN = 4.2V
0.20
0.15
0.10
0.05
0
–50 –25
MAIN SWITCH
SYNCHRONOUS SWITCH
0 25 50 75
TEMPERATURE (°C)
100 125
3406B G26
Dynamic Supply Current
300
V_OUT = 1.2V
I_LOAD = 0A
250
200
150
100
50
0
2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
3406B G27
Switch Leakage vs Temperature
140
MAIN SWITCH
120
SYNCHRONOUS SWITCH
100
80
60
40
20
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3406B G29
Switch Leakage vs Input Voltage
1000
900
MAIN SWITCH
RUN = 0V
SYNCHRONOUS SWITCH
800
700
600
500
400
300
200
100
0
0
1
2
3
4
5
6
INPUT VOLTAGE (V)
3406B G30
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