AME
AME8822
High PSRR, 250mA CMOS LDO
n Electrical Specifications
VOUT(nom) > 2.0V, VIN=VOUT(nom)+0.5V; VOUT≦2V, VIN=2.5V, VEN=VIN, TJ = -40 to 125OC,C =COUT=1mF,
IN
unless otherwise noted.
Test Condition
Parameter
Input Voltage
Symbol
Min
Note1
-1.5
Typ
Max Units
VIN
5.5
1.5
3
V
TA=25oC
TJ=-40 to +125oC
IOUT=1mA
VOUT(nom)
Output Voltage Accuracy
%
IOUT=1mA
-3
IOUT=250mA
VOUT=VOUT(nom) -2%VOUT(nom)
VOUT>2.0V
300
500
Dropout Voltage
(See Note 1)
VDROPOUT
mV
IOUT=250mA
VOUT<=2.0V, VDROPOUT=2.5V-VOUT
VOUT=0.8xVOUT(nom)
Current Limit
ILIM
ISC
IQ
TA=25oC
TA=25oC
TA=25oC
TA=25oC
350
200
30
500
mA
VOUT=0V VOUT<=2V, VIN=3.5V
VIN=5V, 1mA<IOUT<250mA
IOUT=1mA, VOUT>2.0V
Short Circuit Limit
Quiescent Current
45
0.25
0.4
0.4
0.6
m
A
-0.25
-0.4
-0.4
-0.6
0.1
TJ=-40 to +125oC
TA=25oC
TJ=-40 to +125oC
VIN=VOUT +0.5V to VIN=5.5V
IOUT=1mA, VOUT<=2.0V
VIN=2.5V to VIN=5.5V
Line Regulation
(See Note 2)
REGLINE
%/V
0.2
VOUT>2.0V
-0.02 0.0025 0.02
-0.04 0.004 0.04
VIN=VOUT +0.5V
VOUT<=2.0V
VIN=2.5V
Load Regulation
(See Note 3)
REGLOAD
IOUT = 1 to 250mA
%/mA
oC
oC
ppm/oC
IOUT=0mA
IOUT=0mA
Over Temperature Shutdown
Over Temperature Hysterisis
VOUT Temperature Coefficient
OTS
OTH
TC
160
40
30
m
VOUT=3.3V, IOUT=100mA, COUT=10 F,
Power Supply Ripple Rejection
PSRR
65
dB
VIN=VOUT+1V, f=1kHz
Note1: If VOUT(nom) > 2.0V, VIN(min)=VOUT(nom)+VDROPOUT . If VOUT(nom) <= 2.0V, VIN(min) = 2.5V.
DVout
´ 100%
DVin
Note2: Line Regulation =
Vout
DVout
´ 100%
Vout
Note3: Load Regulation =
DI(mA)
8
Rev.F.04
AME [ ANALOG MICROELECTRONICS ]
