Datasheet

Data Sheet ADP322/ADP323
Rev. A | Page 3 of 24
SPECIFICATIONS
V
IN1
/V
IN2
= V
IN3
= (V
OUT
+ 0.5 V) or 1.8 V (whichever is greater), V
BIAS
= 2.5 V, EN1, EN2, EN3 = V
BIAS
, I
OUT1
= I
OUT2
= I
OUT3
= 10 mA,
C
IN
= C
OUT1
= C
OUT2
= C
OUT3
= 1 µF, and T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
VOLTAGE RANGE
Input Bias Voltage Range V
BIAS
T
J
= −40°C to +125°C 2.5 5.5 V
Input LDO Voltage Range V
IN1
/V
IN2
/V
IN3
T
J
= −40°C to +125°C 1.8 5.5 V
CURRENT
Ground Current with All
Regulators On
I
GND
I
OUT
= 0 μA 85 μA
I
OUT
= 0 μA, T
J
= −40°C to +125°C 160 μA
I
OUT
= 10 mA 120 μA
I
OUT
= 10 mA, T
J
= −40°C to +125°C 220 μA
I
OUT
= 200 mA 250 μA
I
OUT
= 200 mA, T
J
= −40°C to +125°C 380 μA
Bias Voltage Input Current I
BIAS
66 μA
T
J
= −40°C to +125°C 140 μA
Shutdown Current I
GND-SD
EN1 = EN2 = EN3 = GND 0.1 μA
EN1 = EN2 = EN3 = GND, T
J
= −40°C to +125°C 2.5 μA
FEEDBACK INPUT CURRENT FB
IN
0.01 μA
VOLTAGE ACCURACY
Output Voltage Accuracy
(ADP322)
V
OUT
−1 +1 %
100 μA < I
OUT
< 200 mA, V
IN
= (V
OUT
+ 0.5 V) to 5.5 V,
T
J
= −40°C to +125°C
−2 +2 %
Feedback Voltage Accuracy
(ADP323)
1
V
FB
0.495 0.5 0.505 V
100 μA < I
OUT
< 200 mA, V
IN
= (V
OUT
+ 0.5 V) to 5.5 V,
T
J
= −40°C to +125°C
0.490 0.510 V
LINE REGULATION ∆V
OUT
/∆V
IN
V
IN
= (V
OUT
+ 0.5 V) to 5.5 V 0.01 %/ V
V
IN
= (V
OUT
+ 0.5 V) to 5.5 V, T
J
= −40°C to +125°C −0.03 +0.03 %/ V
LOAD REGULATION
2
∆V
OUT
/∆I
OUT
I
OUT
= 1 mA to 200 mA 0.001 %/mA
I
OUT
= 1 mA to 200 mA, T
J
= −40°C to +125°C 0.005 %/mA
DROPOUT VOLTAGE
3
V
DROPOUT
V
OUT
= 3.3 V mV
I
OUT
= 10 mA 6 mV
I
OUT
= 10 mA, T
J
= −40°C to +125°C 9 mV
I
OUT
= 200 mA 110 mV
I
OUT
= 200 mA, T
J
= −40°C to +125°C 170 mV
START-UP TIME
4
T
START-UP
V
OUT
= 3.3 V, all V
OUT
initially off, enable any LDO 240 μs
V
OUT
= 0.8 V 100 μs
V
OUT
= 3.3 V, one V
OUT
initially on, enable second or
third LDO
160 μs
V
OUT
= 0.8 V 20 μs
CURRENT LIMIT THRESHOLD
5
I
LIMIT
250 360 600 mA
THERMAL SHUTDOWN
Thermal Shutdown Threshold TS
SD
T
J
rising 155 °C
Thermal Shutdown Hysteresis TS
SD-HYS
15 °C