Data Sheet
ADP5041
Rev. 0 | Page 5 of 40
LDO1, LDO2 SPECIFICATIONS
V
IN2,
V
IN3
= (V
OUT2
,V
OUT3
+ 0.5 V) or 1.7 V (whichever is greater) to 5.5 V; AVIN, VIN1 e VIN2, VIN3; C
IN
= 1 礔, C
OUT
= 2.2 礔;
T
J
= 40癈 to +125癈 for minimum/maximum specifications and T
A
= 25癈 for typical specifications, unless otherwise noted.
1
Table 4.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
INPUT VOLTAGE RANGE
V
IN2
, V
IN3
T
J
= 40癈 to +125癈
1.7
5.5
V
OPERATING SUPPLY CURRENT
Bias Current per LDO
2
IVIN2BIAS/IVIN3BIAS
IOUT3 = IOUT4 = 0 礎
10
30
礎
I
OUT2
= I
OUT3
= 10 mA
60
100
礎
I
OUT2
= I
OUT3
= 300 mA
165
245
礎
Total System Input Current
IIN
Includes all current into AVIN, VIN1, VIN2, and
VIN3
LDO1 or LDO2 Only
I
OUT2
= I
OUT3
= 0 礎, all other channels disabled
53
礎
LDO1 and LDO2 Only
IOUT2 = IOUT3 = 0 礎, buck disabled
74
礎
OUTPUT VOLTAGE ACCURACY
V
OUT2
,
V
OUT3
100 礎 < I
OUT2
< 300 mA, 100 礎 < I
OUT3
< 300 mA
VIN2 = (VOUT2 + 0.5 V) to 5.5 V
VIN3 = (VOUT3 + 0.5 V) to 5.5 V
3
+3
%
REFERENCE VOLTAGE
VFB2,VFB3
0.485
0.500
0.515
V
REGULATION
Line Regulation
(擵OUT2/VOUT2)/擵IN2
(擵OUT3/VOUT3)/擵IN3
VIN2 = (VOUT2 + 0.5 V) to 5.5 V
VIN3 = (VOUT3 + 0.5 V) to 5.5 V
0.03
+0.03
%/V
IOUT2 = IOUT3 = 1 mA
Load Regulation
3
(擵OUT2/VOUT2)/擨OUT2
(擵OUT3/VOUT3)/擨OUT3
IOUT2 = IOUT3 = 1 mA to 300 mA
0.002
0.0075
%/mA
DROPOUT VOLTAGE
4
V
DROPOUT
V
OUT2
= V
OUT3
= 5.0 V, I
OUT2
= I
OUT3
= 300 mA
72
mV
VOUT2 = VOUT3 = 3.3 V, IOUT2 = IOUT3 = 300 mA
86
140
mV
VOUT2 = VOUT3 = 2.5 V, IOUT2 = IOUT3 = 300 mA
107
mV
VOUT2 = VOUT3 = 1.8 V, IOUT2 = IOUT3 = 300 mA
180
mV
ACTIVE PULL-DOWN
RPDLDO
EN2/EN3 = 0 V
600
&
CURRENT-LIMIT THRESHOLD
5
I
LIMIT
T
J
= 40癈 to +125癈
335
470
mA
OUTPUT NOISE
OUTLDO2NOISE
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 3.3 V
123
礦 rms
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 2.8 V
110
礦 rms
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 1.5 V
59
礦 rms
OUTLDO1NOISE
10 Hz to 100 kHz, VIN2 = 5 V, VOUT2 = 3.3 V
140
礦 rms
10 Hz to 100 kHz, VIN2 = 5 V, VOUT2 = 2.8 V
129
礦 rms
10 Hz to 100 kHz, VIN2 = 5 V, VOUT2 = 1.5 V
66
礦 rms
POWER SUPPLY REJECTION
RATIO
PSRR
1 kHz, V
IN2
, V
IN3
= 3.3 V, V
OUT2
, V
OUT3
= 2.8 V,
I
OUT
= 100 mA
66
dB
100 kHz, VIN2, VIN3 = 3.3 V, VOUT2, VOUT3 = 2.8 V,
IOUT = 100 mA
57
dB
1 MHz, VIN2, VIN3 = 3.3 V, VOUT2, VOUT3 = 2.8 V,
IOUT = 100 mA
60
dB
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
2
This is the input current into VIN2 and VIN3 that is not delivered to the output load.
3
Based on an end-point calculation using 1 mA and 300 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 to output voltages
above 1.7 V.
5
Current-limit threshold is defined as the current at which the output voltage 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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