ACT8810
Active- Semi
Rev 4, 01-Oct-09
LOW-DROPOUT LINEAR REGULATORS
ELECTRICAL CHARACTERISTICS (REG4)
(VINL = 3.6V, COUT4 = 1µF, TA = 25°C, unless otherwise specified.)
PARAMETER
INL Operating Voltage Range
INL UVLO Threshold
TEST CONDITIONS
MIN
2.6
TYP MAX UNIT
5.5
2.6
V
V
V
V
INL Input Rising
INL Input Falling
2.4
2.5
0.1
UVLO Hysteresis
V
ꢀ
TA = 25°C
-2% VNOM4 +2%
Output Voltage Accuracy
V
TA = -40°C to 85°C
-3%
VNOM4 +3%
Line Regulation Error
Load Regulation Error
V
INL = Max(VOUT5 + 0.5V, 3.6V) to 5.5V
OUT5 = 1mA to 360mA
0
-0.006
70
%/V
I
%/mA
f = 1kHz, IOUT4 = 360mA, COUT4 = 1µF
f = 10kHz, IOUT4 = 360mA, COUT4 = 1µF
Regulator Enabled
Power Supply Rejection Ratioꢁ
dB
60
35
Supply Current per Output
µA
mV
mA
Regulator Disabled
0
Dropout Voltage3
Output Current
Current Limitꢃ
IOUT4 = 160mA, VOUT4 > 3.1V
100
200
360
VOUT4 = 95% of regulation voltage
400
Internal Soft-Start
100
88
µs
%
Power Good Flag High Threshold VOUT4, hysteresis = -2%
Output Noise
COUT4 = 10µF, f = 10Hz to 100kHz
40
µVRMS
µF
Stable COUT4 Range
1
20
Discharge Resistor in Shutdown LDO Disabled, DIS4[ ] = [1]
1000
ꢀ
ꢀ: VNOM4 refers to the nominal output voltage level for VOUT4 as defined by the Ordering Information section.
ꢁ: PSRR is lower with VSET < 1.25V
3: 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 (for 2.8V output voltage or higher)
ꢃ: 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 40% (typ)
Innovative PowerTM
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