ADP5022
Rev. C | Page 5 of 28
LDO SPECIFICATIONS
VDDA = VIN1
= VIN2 = 3.6 V, VIN3 = (VOUT3 + 0.5 V) or 2.3 V, whichever is greater, VIN3 d VIN1, I
OUT3
= 10 mA; C
IN3
= C
OUT3
=
1 糉, T
J
= 40癈 to +125癈, unless otherwise noted.
1
Table 3.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
OPERATING SUPPLY CURRENT
2
I
VIN3-GND
I
OUT3
= 0 糀
11
21
糀
I
OUT3
= 10 mA
16
29
糀
IOUT3 = 150 mA
31
43
糀
OUTPUT VOLTAGE ACCURACY
V
OUT3
100 糀 < IOUT3 < 150 mA,
VIN3 = (VOUT3 + 0.5 V) to 5.5 V
2
+2
%
REGULATION
Line Regulation
VOUT3/VIN3 VIN3 = (VOUT3 + 0.5 V) to 5.5 V, IOUT = 1 mA 0.03
+0.03 %/V
Load Regulation
3
VOUT3/IOUT3 IOUT3 = 1 mA to 150 mA
0.002 0.0075 %/mA
DROPOUT VOLTAGE
4
VDROPOUT
VOUT3 = 3.0 V, IOUT3 = 10 mA
7
mV
VOUT3 = 3.0 V, IOUT3 = 150 mA
110
150
mV
START-UP TIME
5
From Shutdown State
TSTARTUP3-SD
200
約
CURRENT-LIMIT THRESHOLD
6
I
LIMIT3
160
240
350
mA
OUTPUT NOISE
OUTNOISE
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 3.3 V
65
糣 rms
10 Hz to 100 kHz, VIN3= 5 V, VOUT3 = 2.4 V
52
糣 rms
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 1.2 V
40
糣 rms
POWER SUPPLY REJECTION RATIO
PSRR
10 kHz, VIN3 = 5 V, VOUT3 = 3.3 V
60
dB
10 kHz, VIN3 = 5 V, VOUT3 = 2.3 V
66
dB
10 kHz, VIN3 = 5 V, VOUT3 = 1.2 V
70
dB
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control.
2
LDO operating supply current is the current drawn from VIN3 to AGND when the LDO is enabled. Whenever any regulator channel is enabled, current is drawn from
VIN1 to AGND. This current is 8 糀 typical and is included in the IGND1, IGND2, and IGND1-2 specifications.
3
Based on an end-point calculation using 1 mA and 150 mA loads.
4
Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output
voltages above 2.3 V.
5
Start-up time is defined as the time between the rising edge of EN3 to VOUT3 being at 90% of its nominal value.
6
Current-limit threshold is defined as the current at which VOUT3 drops to 90% of the specified typical value. For example, the current limit for a 3.0 V output voltage is
defined as the current that causes the output voltage to drop to 90% of 3.0 V or 2.7 V.
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