ACT4527
Rev 1, December 28th, 2015
ELECTRICAL CHARACTERISTICS
(VIN = 12V, TA = 25°C, unless otherwise specified.)
Parameter
Maximum Duty Cycle
Symbol
Condition
Min
99
Typ
Max Units
%
Switching Frequency
Soft-start Time
-10%
125
2.0
80
+10%
kHz
ms
Out Voltage Ripples
Cout=220uF/22uF ceramic
mV
For high to lower voltage transi-
tions
VOUT Discharge Current
60
mA
Voltage transition time
Voltage transition time
12V-5V
5V-12V
100
100
ms
ms
Input 12V-40V-12V with 1V/us
slew rate, Vout=5V, Iload=0A
and 2.4A
Line Transient Response
4.75
4.9
5.25
5.4
V
V
80mA-1.0A-80mA load with
0.1A/us slew rate
Vout=5V
5.15
Load Transient Response
80mA-1.0A-80mA load with
0.1A/us slew rate
Vout=9V
8.7
9.1
9.5
V
V
80mA-1.0A-80mA load with
0.1A/us slew rate
Vout=12V
11.6
12.1
12.6
Thermal Shut Down
Thermal Shut Down Hysteresis
PDC Floating
160
30
°C
°C
V
1.5
PDC High
2.0
V
PDC Low
0.8
5.5
V
PDC Maximum Voltage
PDC Drive Current
V
10
uA
Innovative PowerTM
- 5 -
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