ACT4533
Rev 1, 25-Feb-13
TYPICAL PERFORMANCE CHARACTERISTICS
(L = 47µH, CIN = 10µF, COUT = 47µF, Ta = 25°C, RCOMP = 2.2k, CCOMP1 = 4.7nF, CCOMP2 = 47pF)
Efficiency vs. Load current
Switching Frequency vs. Input Voltage
95
90
150
130
110
90
VIN = 12V
VIN = 18V
85
80
75
70
VIN = 24V
70
VOUT = 5V
50
7
12
17
22
27
32
37
0
500
1000
1500
2000
2500
Input Voltage (V)
Load Current (mA)
CC Current vs. Temperature
Switching Frequency vs. Feedback Voltage
2260
2240
2220
150
VIN = 24V
100
50
0
2200
2180
2160
VIN = 18V
2140
VIN = 12V
2120
0
100 200 300 400 500 600 700 800 900
-40
-20
0
20
40
60
80 100 120 140
Feedback Voltage (mV)
Temperature (°C)
CC Current vs. Input Voltage
Maximum Peak Current vs. Duty Cycle
5
4.5
4
2600
2500
2400
2300
2200
2100
VOUT = 3V
VOUT = 4V
3.5
3
2.5
20
30
40
50
60
70
80
90
8
12
16
20
24
28
32
36
Duty Cycle
Input Voltage (V)
Innovative PowerTM
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