ACT8332
Rev0, 14-Mar-08
LOW-DROPOUT LINEAR REGULATORS
ELECTRICAL CHARACTERISTICS (REG2, REG3)
(VINL = 3.6V, COUT = 1µF, TA = 25°C, unless otherwise specified.)
PARAMETER
INL Operating Voltage Range
INL UVLO Threshold
TEST CONDITIONS
MIN
3.1
TYP
MAX UNIT
5.5
3.1
V
V
V
V
INL Input Rising
INL Input Falling
2.9
3
UVLO Hysteresis
V
0.1
1
TA = 25°C
-1.2
-2.5
VNOM
VNOM
0
+2
+3
Output Voltage Accuracy
%
TA = -40°C to 85°C
Line Regulation Error
Load Regulation Error
VINL = Max(VOUT + 0.5V, 3.6V) to 5.5V
mV
I
OUT = 1mA to 360mA
-0.004
70
%/mA
f = 1kHz, IOUT = 360mA, COUT = 1µF
f = 10kHz, IOUT = 360mA, COUT = 1µF
REG2 or REG3 Enabled
Power Supply Rejection Ratio
dB
60
85
Supply Current
REG2 and REG3 Enabled
125
1.5
µA
REG2 and REG3 Disabled
ON1, ON3 Logic High Input Voltage VINL = 3.1V to 5.5V, TA = -40°C to 85°C
1.4
400
1
V
V
ON1, ON3 Logic Low Input Voltage
Dropout Voltage2
V
INL = 3.1V to 5.5V, TA = -40°C to 85°C
0.4
200
360
IOUT = 160mA, VOUT > 3.1V
100
mV
mA
mA
µs
Output Current
Current Limite
VOUT = 95% of regulation voltage
Internal Soft-Start
100
89
Power Good Flag High Threshold
Output Noise
V
OUT, hysteresis = -4%
%
C
OUT = 10µF, f = 10Hz to 100kHz
40
µVRMS
µF
Stable COUT Range
20
Discharge Resistor in Shutdown
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
LDO Disabled
1000
160
20
ꢀ
Temperature Rising
Temperature Falling
°C
°C
c: VNOM refers to the nominal output voltage level for VOUT2 or VOUT3 as defined by the Ordering Information section.
d: Dropout Voltage is defined as the differential voltage between input and output when the output voltage drops 100mV below the
regulation voltage at 1V differential voltage.
e: LDO current limit is defined as the output current at which the output voltage drops to 95% of the respective regulation voltage. Un-
der heavy overload conditions the output current limit folds back by 30% (typ)
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ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
