PRODUCT DATASHEET
AAT3242
PowerLinear
TM
300mA/150mA Dual CMOS LDO Linear Regulator
Electrical Characteristics
1
(continued)
V
IN
= V
OUT(NOM)
+ 1.0V for V
OUT
options greater than 1.5V. V
IN
= 2.5V for V
OUT
≥
1.5V. I
OUT
= 1.0mA, C
OUT
= 2.2μF, C
IN
=
1.0μF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= 25°C.
Symbol
V
OUT
V
IN
V
DO
ΔV
OUT
/
V
OUT
*ΔV
IN
ΔV
OUT(Line)
ΔV
OUT(Load)
V
EN(L)
V
EN(H)
V
POK
V
POKHYS
V
POK(LO)
I
POK
I
OUT
I
SC
I
Q
PSRR
T
SD
T
HYS
e
N
T
C
Description
Output Voltage Tolerance
Input Voltage
Dropout Voltage
2, 3
Line Regulation
4
Dynamic Line Regulation
Dynamic Load Regulation
Enable Threshold Low
Enable Threshold High
Power OK Trip Threshold
Power OK Hysteresis
Power OK Output Voltage Low
POK Output Leakage Current
Output Current
Short-Circuit Current
Ground Current
Power Supply Rejection Ratio
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Output Noise
Output Voltage Temperature
Coefficient
Conditions
I
OUT
= 1mA to 150mA
I
OUT
= 150mA
V
IN
= V
OUT
+ 1V to 5.0V
I
OUT
= 150mA, V
IN
= V
OUT
+ 1 to V
OUT
+
2, T
R
/T
F
= 2μs
I
OUT
= 1mA to 150mA, T
R
<5μs
T
A
= 25°C
T
A
= -40 to 85°C
Min
-1.5
-2.5
V
OUT
+ V
DO5
Typ
Max
1.5
2.5
5.5
300
0.09
Units
%
V
mV
%/V
mV
LDO B; I
OUT
= 150mA
200
5.0
60
0.6
1.5
90
V
OUT
Rising, T
A
= 25°C
I
SINK
= 1mA
V
POK
< 5.5V, V
OUT
in Regulation
V
OUT
> 1.2V
V
OUT
< 0.4V
V
IN
= 5V, No Load; EN B = V
IN
1kHz
10kHz
I
OUT
= 10mA
1MHz
94
1.0
98
0.4
1.0
150
600
70
65
45
42
145
12
125
mV
V
V
% of V
OUT
% of V
OUT
V
μA
mA
mA
μA
dB
°C
°C
μVRMS
ppm/°C
e
NBW
= 300Hz to 50kHz
250
22
1. The AAT3242 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
2. V
DO
is defined as V
IN
- V
OUT
when V
OUT
is 98% of nominal.
3. For V
OUT
< 2.3V, V
DO
= 2.5 - V
OUT
.
4. C
IN
= 10μF.
5. To calculate minimum input voltage, use the following equation: V
IN(MIN)
= V
OUT(MAX)
+ V
DO(MAX)
as long as V
IN
≥
2.5V.
3242.2008.08.1.11
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