Active-Semi
ACT8325
Rev 2, 25-May-11
STEP-DOWN DC/DC CONVERTER
ELECTRICAL CHARACTERISTICS (REG2)
(V
VP2
= 3.6V, T
A
= 25°C, unless otherwise specified.)
PARAMETER
VP2 Operating Voltage Range
VP2 UVLO Threshold
VP2 UVLO Hysteresis
Standby Supply Current
Shutdown Supply Current
Adjustable Output Option Regulation
Voltage
Output Voltage Regulation Accuracy
Line Regulation
Load Regulation
Switch Peak Current Limit
TEST CONDITIONS
Input Voltage Rising
Input Voltage Falling
MIN
3.1
2.9
TYP
3
80
130
MAX
5.5
3.1
UNIT
V
V
mV
200
1
µA
µA
V
ON2 = GA, V
VP2
= 4.2V
0.1
0.625
V
NOM2
< 1.3V, I
OUT2
= 10mA
V
NOM2
≥
1.3V, I
OUT2
= 10mA
V
VP2
= Max(V
NOM2
+ 1V, 3.2V) to 5.5V
I
OUT2
= 10mA to 550mA
ACT8325NDAAA
ACT8325NDEH
V
OUT2
≥
20% of V
NOM2
V
OUT2
= 0V
I
SW2
= -100mA
I
SW2
= 100mA
V
VP2
= 5.5V, V
SW2
= 5.5V or 0V
-2.4%
-1.2%
V
NOM2
V
NOM2
0.15
0.0017
+1.8%
+1.8%
V
%/V
%/mA
A
0.65
0.95
1.35
0.85
1.25
1.6
530
0.40
0.27
0.68
0.46
1
94
70
1.85
Oscillator Frequency
PMOS On-Resistance
NMOS On-Resistance
SW2 Leakage Current
Power Good Threshold
Minimum On-Time
Logic High Input Voltage
Logic Low Input Voltage
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
MHz
kHz
Ω
Ω
µA
%V
NOM2
ns
V
ON2
ON2
Temperature Rising
Temperature Falling
1.4
0.4
160
20
V
°C
°C
: V
NOM2
refers to the nominal output voltage level for V
OUT2
as defined by the
Ordering Information
section.
Innovative Power
TM
ActivePMU
TM
-7-
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is a trademark of Active-Semi.
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