EA4533BYH Datasheet, PDF (13/17 Pages) Active-Semi, Inc – Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

ACT4533A/B
Rev 0, 14-Aug-13
TYPICAL PERFORMANCE CHARACTERISTICS
(Schematic as show in Figure 9, Ta = 25°C, unless otherwise specified)
Efficiency vs. Load current
100
95
VIN =12V
90
85
VIN =18V
80
VIN =24V
75
70
65
60
0
VOUT = 5V
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
Load Current (A)
Switching Frequency vs. Input Voltage
145
140
135
130
125
120
115
110
10
15
20
25
30
35
40
Input Voltage (V)
Switching Frequency vs. Feedback Voltage
150
120
90
60
30
0
0 100 200 300 400 500 600 700 800 900
Feedback Voltage (mV)
CC Current vs. Temperature
2780
2740
VOUT = 5V
VIN = 12V
IISET = 2.65A
2700
2660
2620
2580
-20
10
40
70
100
130
Temperature (°C)
CC Current vs. Input Voltage
2850
2800
2750
2700
2650
2660
10
15
20
25
30
35
40
Input Voltage (V)
Maximum Peak Current vs. Duty Cycle
9.0
8.0
7.0
6.0
5.0
4.0
3.0
10 20 30 40 50 60 70 80 90
Duty Cycle
Innovative Power^TM
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