AAT3239
500mA MicroPower™ LDO
Electrical Characteristics
1
V
IN
= V
OUT(NOM)
+ 1.2V for V
OUT
options greater than 1.5V. V
IN
= 2.5 for V
OUT
≤
1.5V. I
OUT
= 1mA, C
OUT
= 2.2µF,
C
IN
= 1µF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= 25°C.
Symbol
Description
Conditions
I
OUT
= 1mA to 300mA
V
OUT
Output Voltage Tolerance
I
OUT
= 1mA to 500mA
I
OUT
V
DO
I
SC
I
Q
I
SD
∆V
OUT
/
V
OUT
*∆V
IN
∆V
OUT
(line)
∆V
OUT
(load)
t
ENDLY
V
EN(L)
V
EN(H)
I
EN
PSRR
Output Current
Dropout Voltage
2, 3
Short-Circuit Current
Ground Current
Shutdown Current
Line Regulation
Dynamic Line Regulation
Dynamic Load Regulation
Enable Delay Time
Enable Threshold Low
Enable Threshold High
Leakage Current on Enable Pin
Power Supply Rejection Ratio
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Output Noise
Output Voltage Temperature
Coefficient
T
A
= 25°C
T
A
= -40 to 85°C
T
A
= 25°C
T
A
= -40 to 85°C
Min Typ Max
-1.5
-2.5
-2.0
-3.5
500
1.5
2.5
2.0
3.5
400 600
0.8 1.2
600
70 125
1
0.09
2.5
100
120
15
0.6
1.5
Units
%
V
OUT
> 1.2V
I
OUT
= 300mA
I
OUT
= 500mA
V
OUT
< 0.4V
V
IN
= 5V, No Load, EN = V
IN
V
IN
= 5V, EN = 0V
V
IN
= V
OUT
+ 1 to 5.0V
V
IN
= V
OUT
+ 1V to V
OUT
+ 2V,
I
OUT
= 500mA, T
R
/T
F
= 2µs
I
OUT
= 1mA to 300mA, T
R
<5µs
I
OUT
= 1mA to 500mA, T
R
<5µs
BYP = Open
mA
mV
V
mA
µA
µA
%/V
mV
mV
µs
V
V
µA
dB
V
EN
= 5V
I
OUT
= 10mA,
C
BYP
= 10nF
1kHz
10kHz
1MHz
67
47
45
145
12
Noise Power BW = 300Hz to 50kHz
50
22
1
T
SD
T
HYS
e
N
TC
°C
°C
µVrms
ppm/°C
1. The AAT3239 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
= 2.5V - V
OUT
.
4
3239.2006.03.1.2
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
