ACT4523
Active- Semi
Rev 4, 21-Jul-11
TYPICAL PERFORMANCE CHARACTERISTICS
(L = 33µH, CIN = 10µF, COUT = 47µF, Ta = 25°C, RCOMP = 8.2k, CCOMP1 = 2.2nF, CCOMP2 = NC)
Efficiency vs. Load current
Switching Frequency vs. Input Voltage
100
250
230
210
190
170
150
130
110
VIN = 12V
95
90
85
80
75
70
65
60
VIN = 24V
VOUT = 5V
10
15
20
25
30
35
40
200
600
1000
1400
1800
2200
Input Voltage (V)
Load Current (mA)
CC Current vs. Temperature
Switching Frequency vs. Feedback Voltage
260
2700
2600
2500
210
160
110
60
2400
2300
2200
2100
2000
10
25
45
65
85
105
125
145
0
100 200 300 400 500 600 700 800 900
Temperature (°C)
Feedback Voltage (mV)
CC Current vs. Input Voltage
Maximum Peak Current vs. Duty Cycle
4.2
4.05
3.9
2600
2400
2200
2000
1800
1600
3.75
3.6
3.45
3.3
3.15
3
20
30
40
50
60
70
10
14
18
22
26
30
34
38
Duty Cycle
Input Voltage (V)
Innovative PowerTM
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