Active-Semi
ELECTRICAL CHARACTERISTICS (REG1)
(V
VP1
= 3.6V, T
A
= 25°C, unless otherwise specified.)
ACT8325
STEP-DOWN DC/DC CONVERTER
Rev0, 13-May-08
PARAMETER
VP1 Operating Voltage Range
VP1 UVLO Threshold
VP1 UVLO Hysteresis
Standby Supply Current
Shutdown Supply Current
Adjustable Output Option Regulation
Voltage
Output Voltage Regulation Accuracy
Line Regulation
Load Regulation
Current Limit
Oscillator Frequency
PMOS On-Resistance
NMOS On-Resistance
SW1 Leakage Current
Power Good Threshold
Minimum On-Time
Logic High Input Voltage
Logic Low Input Voltage
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
ON1
ON1
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
ON1 = GA, V
VP1
= 4.2V
0.1
0.625
V
NOM1
< 1.3V, I
OUT1
= 10mA
V
NOM1
≥
1.3V, I
OUT1
= 10mA
V
VP1
= Max(V
NOM1
+ 1V, 3.2V) to 5.5V
I
OUT1
= 10mA to 350mA
-2.4%
-1.2%
V
NOM1
V
NOM1
0.15
0.0017
+1.8%
+1.8%
V
%/V
%/mA
A
0.45
V
OUT1
≥
20% of V
NOM1
V
OUT1
= 0V
I
SW1
= -100mA
I
SW1
= 100mA
V
VP1
= 5.5V, V
SW1
= 5.5V or 0V
1.35
0.6
1.6
530
0.52
0.27
0.88
0.46
1
94
70
1.85
MHz
kHz
Ω
Ω
µA
%V
NOM1
ns
V
1.4
0.4
160
20
V
°C
°C
Temperature Rising
Temperature Falling
: V
NOM1
refers to the nominal output voltage level for V
OUT1
as defined by the
Ordering Information
section.
Innovative Power
TM
ActivePMU
TM
-6-
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is a trademark of Active-Semi.
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