AAT3258
300mA LDO Linear Regulator with µP Reset
Electrical Characteristics1
TJ = 25°C, unless otherwise noted.
Symbol
Description
Conditions
Min Typ Max Units
300mA LDO Regulator
I
OUT = 1mA TA = 25°C
-1.5
TA = -40°C to 85°C -2.5
300
1.5
2.5
VOUT
Output Voltage
%
to 300mA
IOUT
ISC
IGND
ISHDN
Output Current
VOUT > 1.2V
VOUT < 0.4V
mA
mA
µA
Short-Circuit Current
Ground Current
600
70
VIN = 5V, No Load, SHDN = VIN
VIN = 5V, SHDN = 0V
125
1.0
Shutdown Current
µA
∆VOUT/VOUT*∆VIN Line Regulation
VIN = VOUT + 1 to 5.0V
0.09
%/V
I
OUT = 300mA, TR/TR = 2µs,
∆VOUT (line)
Dynamic Line Regulation
2.5
mV
VIN = VOUT + 1V to VOUT + 2V
IOUT = 1mA to 300mA, TR < 5µs
BYP = Open
VOUT (load)
Dynamic Load Regulation
Enable Delay Time
Dropout Voltage2
60
15
mV
µs
mV
V
TENDLY
VDO
VIL
IOUT = 300mA
400 600
0.6
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
VIH
1.5
V
IIL
1.0
µA
µA
IIH
1.0
1kHz
67
47
45
I
OUT = 10mA,
PSRR
TSD
Power Supply Rejection Ratio
10kHz
1MHz
dB
°C
CBYP = 10nF
Over-Temperature Shutdown
Threshold
145
Over-Temperature Shutdown
Hysteresis
THYS
eN
12
50
22
°C
Output Noise
µVRMS
ppm/°C
Output Voltage Temperature
Coefficient
TC
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. VDO is defined as VIN - VOUT when VOUT is 98% of nominal.
4
3258.2006.03.1.6
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
