AAT3258
300mA LDO Linear Regulator with µP Reset
Electrical Characteristics
1
T
J
= 25°C, unless otherwise noted.
Symbol
Description
Conditions
I
OUT
= 1mA T
A
= 25°C
to 300mA
T
A
= -40°C to 85°C
V
OUT
> 1.2V
V
OUT
< 0.4V
V
IN
= 5V, No Load, SHDN = V
IN
V
IN
= 5V, SHDN = 0V
V
IN
= V
OUT
+ 1 to 5.0V
I
OUT
= 300mA, T
R
/T
R
= 2µs,
V
IN
= V
OUT
+ 1V to V
OUT
+ 2V
I
OUT
= 1mA to 300mA, T
R
< 5µs
BYP = Open
I
OUT
= 300mA
Min
-1.5
-2.5
300
Typ
Max
1.5
2.5
Units
300mA LDO Regulator
V
OUT
I
OUT
I
SC
I
GND
I
SHDN
∆V
OUT
/V
OUT
*∆V
IN
∆V
OUT
(line)
V
OUT
(load)
T
ENDLY
V
DO
V
IL
V
IH
I
IL
I
IH
PSRR
Output Voltage
Output Current
Short-Circuit Current
Ground Current
Shutdown Current
Line Regulation
Dynamic Line Regulation
Dynamic Load Regulation
Enable Delay Time
Dropout Voltage
2
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Power Supply Rejection Ratio
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Output Noise
Output Voltage Temperature
Coefficient
%
mA
mA
µA
µA
%/V
mV
mV
µs
mV
V
V
µA
µA
dB
600
70
125
1.0
0.09
2.5
60
15
400
1.5
1.0
1.0
600
0.6
1kHz
I
OUT
= 10mA,
10kHz
C
BYP
= 10nF
1MHz
67
47
45
145
12
50
22
T
SD
T
HYS
e
N
TC
°C
°C
µV
RMS
ppm/°C
1. The AAT3258 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.
4
3258.2006.03.1.6
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
