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SWCS046N –MARCH 2010–REVISED APRIL 2012
VDIG1 AND VDIG2 LDO (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
SEL = 11, IOUT = 0 to IOUTmax
MIN
–3%
–3%
TYP
1.8
MAX
+3%
+3%
UNIT
SEL = 10 IOUT = 0 to IOUTmax, VIN = VINmin to 4 V
1.2
SEL = 01 IOUT = 0 to 100 mA/IOUTmax, VIN= VINmin
to 4 V
V
–3%
–3%
1.1
1
+3%
+3%
SEL = 00, IOUT = 0 to IOUTmax, VIN = VINmin to 4 V,
default BOOT[1:0] = 00 or 01
Rated output current IOUTmax
On mode
300
1
mA
mA
Low-power mode
Load current limitation (short-circuit
protection)
On mode, VOUT = VOUTmin – 100 mV
350
600
250
Dropout voltage VDO
ON mode, VDO = VIN – VOUT,
VOUTtyp = 1.8 V, VIN = 2.1 V, IOUT=IOUTmax, T =
25°C
mV
DC load regulation
DC line regulation
On mode, IOUT = IOUTmax to 0
25
3
mV
mV
mV
On mode, VIN = VINmin to VINmax @ IOUT = IOUTmax
ON mode, VIN = 3.8 V
Transient load regulation
10
2
IOUT = 20 mA to 180 mA in 5µs and
IOUT = 180 mA to 20 mA in 5 µs
Transient line regulation
On mode, VIN = 2.7 + 0.5 V to 2.7 in 30 µs,
mV
And VIN = 2.7 to 2.7 + 0.5 V in 30 µs, IOUT
IOUTmax/2
=
Turn-on time
IOUT = 0, @ VOUT = 0.1 V up to VOUTmin
100
300
µs
Turn-on inrush current
mA
VIN = VINDC + 100 mVpp tone, VINDC+= 3.8 V, IOUT
IOUTmax/2
=
Ripple rejection
f = 217 Hz
70
40
dB
f = 50 kHz
VDIG2 internal resistance
Ground current
LDO off
400
52
Ω
On mode, IOUT = 0, VCC6 = VBAT, VOUT = 1.8 V
On mode, IOUT = 0, VCC6 = 1.8 V, VOUT = 1.0 V
67
On mode, IOUT = IOUTmax, VCC6 = VBAT, VOUT
1.8 V
=
1750
1300
On mode, IOUT = IOUTmax, VCC6 = 1.8 V, VOUT
1.0 V
=
µA
Low-power mode, VCC6 = VBAT, VOUT = 1.8 V
Low-power mode, VCC6 = 1.8 V, VOUT = 1.0 V
Off mode
11
10
1
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