ACT5830
Rev PrB, 05-Mar-08
LDO7
ELECTRICAL CHARACTERISTICS
(VIN1 = 3.6V, COUT7 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
3.1
TYP
MAX UNIT
Input Supply Range
5.5
3.1
V
V
V
Input Under Voltage Lockout VIN1 Input Rising
2.9
3
0.1
0
UVLO Hysteresis
VIN1 Input Falling
VNOM < 1.3V, IOUT = 10mA
-2.4
-1.2
-5
2
2
3
3
TA = 25°C
0
VNOM ≥ 1.3V, IOUT = 10mA
VNOM < 1.3V, IOUT = 10mA
VNOM ≥ 1.3V, IOUT = 10mA
Output Voltage Accuracy
%
0
TA = -40°C to 85°C
-2.5
0
Line Regulation Error
Load Regulation Error
V
IN7 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
0
mV
IOUT7 = 1mA to 250mA
f = 1kHz, IOUT7 = 250mA, COUT7 = 1µF
f = 10kHz, IOUT7 = 250mA, COUT7 = 1µF
LDO7 Enabled
-0.004
60
50
20
0
%/mA
Power Supply Rejection Ratio
dB
µA
Supply Current per Output
LDO7 Disabled
Dropout Voltage2
Output Current
Current Limit
IOUT7 = 100mA
100
200
250
mV
mA
mA
VOUT7 = 95% of Regulation Voltage
275
410
0.45 x ILIM
100
Current Limit Short Circuit
Foldback
VOUT7 = 0V
Internal Soft-Start
µs
%
Power Good Flag High
Threshold
VOUT7, Hysteresis = -1%
89
Output Noise
Stable COUT7
COUT7 = 10µF, f = 10Hz to 100kHz
40
µVRMS
µF
1
20
c: VNOM refers to the nominal output voltage level for LDO7 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regu-
lation voltage at 1V differential voltage.
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