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AAT3237IGU-3.3-T1 Datasheet(PDF) 4 Page - Advanced Analogic Technologies

Part # AAT3237IGU-3.3-T1
Description  300mA MicroPower??LDO with PowerOK
Download  13 Pages
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Manufacturer  ANALOGICTECH [Advanced Analogic Technologies]
Direct Link  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

AAT3237IGU-3.3-T1 Datasheet(HTML) 4 Page - Advanced Analogic Technologies

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Electrical Characteristics
V
IN = VOUT(NOM) + 1V for VOUT options greater than 1.5V. VIN = 2.5V for VOUT ≤ 1.5V. IOUT = 1mA, COUT = 2.2µF,
C
IN = 1µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C.
Symbol
Description
Conditions
Min Typ Max
Units
V
OUT
Output Voltage Tolerance
I
OUT = 1mA to 300mA
T
A = 25°C
-1.5
1.5
%
T
A = -40 to 85°C
-2.5
2.5
I
OUT
Output Current
V
OUT > 1.2V
300
mA
V
DO
Dropout Voltage
1, 2
I
OUT = 300mA
400
600
mV
I
SC
Short-Circuit Current
V
OUT < 0.4V
600
mA
I
Q
Ground Current
V
IN = 5V, No Load, EN = VIN
70
125
µA
I
SD
Shutdown Current
V
IN = 5V, EN = 0V
1
µA
∆V
OUT/
Line Regulation
3
V
IN = VOUT + 1 to 5.0V
0.09
%/V
V
OUT*∆VIN
∆V
OUT(line)
Dynamic Line Regulation
V
IN = VOUT + 1V to VOUT + 2V,
5mV
I
OUT = 300mA, TR/TF = 2µs
∆V
OUT(load)
Dynamic Load Regulation
I
OUT = 1mA to 300mA, TR <5µs
60
mV
V
EN(L)
Enable Threshold Low
0.6
V
V
EN(H)
Enable Threshold High
1.5
V
I
EN
Leakage Current on Enable Pin
V
EN = 5V
1
µA
V
POK
POK Trip Threshold
V
OUT Rising, TA = 25°C
90
94
98
% of V
OUT
V
POKHYS
POK Hysteresis
1
% of V
OUT
V
POK(OL)
POK Output Voltage Low
I
SINK = 1mA
0.4
V
I
POK
POK Output Leakage Current
V
POK < 5.5V, VOUT in Regulation
1
µA
1kHz
65
PSRR
Power Supply Rejection Ratio
I
OUT = 10mA
10kHz
45
dB
1MHz
42
T
SD
Over-Temperature Shutdown
145
°C
Threshold
T
HYS
Over-Temperature Shutdown
12
°C
Hysteresis
e
N
Output Noise
250
µVrms
TC
Output Voltage Temperature
22
ppm/°C
Coefficient
AAT3237
300mA MicroPower™ LDO with PowerOK
4
3237.2006.01.1.4
1. V
DO is defined as VIN - VOUT when VOUT is 98% of nominal.
2. For V
OUT < 2.1V, VDO = 2.5V - VOUT.
3. C
IN = 10µF.


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