DS8008-07 Datasheet, PDF (6/14 Pages) Richtek Technology Corporation – 2.5V to 5.5V Input Range

RT8008
Typical Operating Characteristics
Efficiency vs. Load Current
100
90 ^{VIN = 3.3V}
80
VIN = 5V
70
60
50
40
0.01
0.11
0.21
0.31
VOUT = 1.2V
0.41 0.51 0.61
Load Current (A)
Output Voltage vs. Load Current
1.220
1.215
1.210
1.205
VIN = 3.3V
VIN = 5V
1.200
1.195
VIN = 2.5V
1.190
1.185
1.180
0
VOUT = 1.2V
0.1
0.2
0.3
0.4
0.5
0.6
Load Current (A)
Frequency vs. Input Voltage
1.50
1.48
1.45
1.43
1.40
1.38
1.35
VOUT = 1.2V, IOUT = 300mA
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
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Efficiency vs. Input Voltage
100
90 ^{IOUT = 300mA}
80
IOUT = 600mA
70
60
50
VOUT = 1.2V
40
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Current Limit vs. Input Voltage
2.5
2.0
1.5
1.0
0.5
VOUT = 1.2V
0.0
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Frequency vs. Temperature
1.50
VOUT = 1.2V, IOUT = 300mA
1.48
1.45
1.43
1.40
1.38
1.35
-50 -25
0
25 50 75
Temperature (°C)
100 125
DS8008-07 March 2011