LTC3410_15 Datasheet, PDF (4/16 Pages) Linear Technology – 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70

LTC3410
TYPICAL PERFOR A CE CHARACTERISTICS
(From Figure 1 Except for the Resistive Divider Resistor Values)
Reference Voltage vs
Temperature
0.814
V_IN = 3.6V
0.809
0.804
0.799
0.794
0.789
0.784
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3410 G05
Output Voltage vs Load Current
1.0
V_IN = 3.6V
V_OUT = 1.8V
0.5
0
–0.5
–1.0
–1.5
0
100 200 300 400 500
LOAD CURRENT (mA)
3410 G08
Dynamic Supply Current vs V_IN
50
V_OUT = 1.2V
I_{LOAD =} 0A
40
30
20
10
0
1
2
3
4
5
6
V_IN (V)
3410 G11
Oscillator Frequency vs
Temperature
2.7
V_IN = 3.6V
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3410 G06
R_DS(ON) vs Input Voltage
1.2
1.1
1.0
0.9
0.8
MAIN SWITCH
0.7
0.6
0.5 _{SYNCHRONOUS SWITCH}
0.4
0.3
0.2
0.1
0
12
3
4
5
67
INPUT VOLTAGE (V)
3410 G09
Dynamic Supply Current
vs Temperature
50
40
30
20
10
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3410 G12
4
Oscillator Frequency vs
Supply Voltage
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
2
3
4
5
SUPPLY VOLTAGE (V)
6
3410 G07
R_DS(ON) vs Temperature
1.2
V_IN = 4.2V
1.0
V_IN = 3.6V
V_IN = 2.7V
0.8
0.6
0.4
V_IN = 2.7V
V_IN = 4.2V
V_IN = 3.6V
0.2
MAIN SWITCH
SYNCHRONOUS SWITCH
0
–50 –30 –10 10 30 50 70 90 110 130
TEMPERATURE (°C)
3410 G10
Switch Leakage vs Temperature
110
100
V_IN = 5.5V
RUN = 0V
90
80
70
SYNCHRONOUS
60
SWITCH
50
40
30
MAIN
20
SWITCH
10
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
3410 G13
3410fb