300mA/150mA Dual CMOS LDO Linear Regulator
Electrical Characteristics
1
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
I
SD
PSRR
T
SD
T
HYS
e
N
T
C
AAT3242
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
Shutdown Current
Power Supply Rejection Ratio
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Output Noise
Output Voltage Temperature
Coefficient
Conditions
I
OUT
= 1mA
to 300mA
T
A
= 25°C
T
A
= -40 to 85°C
Min
-1.5
-2.5
V
OUT
+ V
DO
5
Typ Max
1.5
2.5
5.5
600
0.09
Units
%
V
mV
%/V
mV
mV
LDO A; I
OUT
= 300mA
I
OUT
= 300mA
V
IN
= V
OUT
+ 1 to 5.0 V
I
OUT
= 300mA, V
IN
= V
OUT
+ 1
to V
OUT
+ 2, T
R
/T
F
= 2µS
I
OUT
= 1mA to 300mA,
T
R
<5µS
1.5
90
400
5.0
60
0.6
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 A = V
IN
V
IN
= 5V, EN A = 0V
1kHz
I
OUT
=1 0mA 10kHz
1MHz
94
1.0
98
0.4
1.0
300
600
70
65
45
42
145
12
125
1.0
V
V
% of V
OUT
% of V
OUT
V
µA
mA
mA
µA
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 correlation 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
< 2.1V, 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.
4
3242.2006.04.1.10
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
