ACT5830
Rev PrB, 05-Mar-08
STEP-DOWN DC/DC CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
(VINx = 3.6V, COUTx = 1µF, TA = 25°C unless otherwise specified.)
REG Load Regulation
REG Efficiency vs. Load
0.2
95
90
3.6V
0.0
85
4.0V
-0.2
80
3.6V
4.2V
75
-0.4
70
65
60
-0.6
-0.8
-
55
50
1
10
100
1000
0
50
100
150
200
250
300
350 400
Output Current (mA)
Output Current (mA)
REG MOSFET Resistance
VREG Regulation Voltage
1.812
1.810
1.808
1.806
1.804
1.802
1.800
1.798
1.796
1.794
1.792
600
550
500
450
400
IOUT1 = 35mA
PMOS
NMOS
350
300
250
200
150
100
1.790
1.788
50
0
-40
-20
0
20
40
60
85
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Temperature (°C)
VP1 Voltage (V)
REG Load Transient Response
REG Load Transient Response
CH1
CH2
CH1
CH2
0mA
0mA
CH1: VOUT1, 50mV/div (AC Coupled)
CH2: IOUT1, 200mA/div
TIME: 200µs/div
CH1: VOUT1, 50mV/div (AC Coupled)
CH2: IOUT1, 200mA/div
TIME: 200µs/div
Innovative PowerTM
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