ACT4070B
Rev 0, 23-Apr-12
TYPICAL PERFORMANCE CHARACTERISTICS
(Circuit of Figure 3, unless otherwise specified.)
Efficiency vs. Load Current
100
V
IN
= 12V
80
120
100
80
60
40
20
0
ACT4070B-002
Shutdown Current vs. Input Voltage
ACT4070B-003
60
V
IN
= 24V
40
20
V
OUT
= 5V
0
1
10
100
1000
10000
Shutdown Current (µA)
Efficiency (%)
5
10
15
20
25
30
Load Current (mA)
Input Voltage (V)
Load Transient Response
ACT4070B-004
V
IN
= 12V
V
0UT
= 5V
Load Transient Response
ACT4070B-005
V
IN
= 24V
V
0UT
= 5V
CH1
CH1
CH2
CH2
CH1: I
OUT
, 1A/div
CH2: V
OUT
, 200mV/div
TIME: 400µs/div
CH1: I
OUT
, 1A/div
CH2: V
OUT
, 200mV/div
TIME: 400µs/div
Maximum Peak Current vs. Duty Cycle
4.5
ACT4070B-006
Maximum CC Current (A)
4.2
3.9
3.6
3.3
3
20
30
40
50
60
70
Duty Cycle
Innovative Power
TM
-8-
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