Active-Semi
ACT8810
Rev 4, 01-Oct-09
STEP-DOWN DC/DC CONVERTERS
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(ACT8810QJ343, VVP3 = 3.6V, L = 3.3µH, CVP3 = 4.7μF, COUT3 = 10μF, TA = 25°C, unless otherwise specified.)
REG3 Efficiency vs. Load Current
100 VOUT3 = 1.2V
80
60
VVSYS = 3.6V
VVSYS = 4.6V
VVSYS = 4.2V
40
20
0
1
10
100
1000
Load Current (mA)
OUT3 Regulation Voltage vs. Tempera-
1.812 IOUT3 = 35mA
1.808
1.804
1.800
1.796
1.792
1.788
-40
-20
0
20
40
60
85
Temperature (°C)
REG3 RDSON vs. VP3 Input Voltage
0.50
0.45
0.40
0.35
PMOS
0.30
0.25
NMOS
0.20
0.15
0.1
3.0
3.5
4.0
4.5
5.0
5.5
6.0
VP3 Input Voltage (V)
Innovative PowerTM
ActivePMUTM and ActivePathTM are trademarks of Active-Semi.
I2CTM is a trademark of Philips Electronics.
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