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PDF AME8824 Data sheet ( Hoja de datos )
| Número de pieza | AME8824 | |
| Descripción | 300mA CMOS LDO | |
| Fabricantes | Analog Microelectronics | |
| Logotipo |  |
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AME, Inc.www.DataSheet4U.com
AME8824
n General Description
The AME8824 family of positive, linear regulators fea-
ture low quiescent current (30µA typ.) with low dropout
voltage, making them ideal for battery applications. The
space-saving SOT-26 package are attractive for "Pocket"
and "Hand Held" applications.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under the
"Worst" of operating conditions.
The SOT-26 version also features a "Power Good" de-
tector, which pulls low when the output is out of regula-
tion.
The AME8824 is stable with an output capacitance of
2.2µF or greater.
n Features
l Very Low Dropout Voltage
l Guaranteed 300mA Output
l Typical accuracy within 2%
l 30µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
l Power Good Detector (6 pin version only)
l Power-Saving Shutdown Mode
l Space-Saving SOT-26
l Adjustable Output Voltages
l Low Temperature Coefficient
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
l Electronic Scales
300mA CMOS LDO
n Functional Block Diagram
IN OUT
Overcurrent
Shutdown
Thermal
Shutdown
EN
Vref x110%
PG
AMP
ADJ
Vref x90%
Vref =1.2V
GND
n Typical Application
IN
5V
EN OUT
IN AME8824
PG
C1
GND
ADJ
1µ F
OUT
C2
R1 100p C3
2.2µ F
R2
V = 1.2 (R1 +R2)/R2
OUT
C2 is unnecessary when R1 or R2 < 20K
PG pin is only available in the SOT-26 package option
1
1 page  
AME, Inc.www.DataSheet4U.com
AME8824
300mA CMOS LDO
n Electrical Specifications
TA = 25OC, VIN=5V unless otherwise noted
Parameter
Symbol
Test Condition
Min Typ Max Units
Input Voltage
Output Voltage
Dropout Voltage
Output Current
Current Limit
Short Circuit Current
Quiescent Current
Ground Pin Current
Line Regulation
Load Regulation
Over Temerature Shutdown
Over Temerature Hysterisis
VO Temperature Coefficient
Power Supply Rejection
Output Voltage Noise
VIN Note 1
VO
IO=1mA
-3
VDROPOUT
IO=300mA
VO=VONOM -2.0%
1.2V<=VO(NOM)<=2.0V
2.0V<VO(NOM)<=2.8V
2.8V<VO(NOM)<3.8V
IO
VO>1.2V
300
ILIM
VO>1.2V
300 450
ISC VO<0.8V
150
IQ IO=0mA
30
IGND IO=1mA to 300mA
35
REGLINE
IO=5mA
VIN=VO+1 to VO+2
VO < 2.0V
VO >= 2.0V
0.02
REGLOAD
IO=1mA to 300mA
0.2
OTS
150
OTH
30
TC 30
PSRR
IO=100mA
CO=2.2µF
f=1kHz
f=10kHz
f=100kHz
50
20
15
f=10Hz to 100kHz
eN IO=10mA,CBYP=0µF
Co=2.2µF
30
7
3
1300
400
300
300
50
0.15
0.1
1
V
%
mV
mA
mA
mA
µA
µA
%
%
%
oC
oC
ppm/oC
dB
µVrms
ADJ Input Bias Current
ADJ Reference Voltage
EN Input Threshold
EN Input Bias Current
Shutdown Supply Current
Shutdown Output Voltage
Output Under Voltage
Output Over Voltage
PG Leakage Current
PG Voltage Rating
PG Voltage Low
Note1:VIN(min) =VOUT+VDROPOUT
IADJ
VREF
VEH
VEL
IEH
IEL
ISD
VO,SD
VUV
VOV
ILC
VPG
VOL
VIN=2.7V to 7V
VIN=2.7V to 7V
VEN=VIN, VIN=2.7V to 7V
VEN=0V, VIN=2.7V to 7V
VIN=5V, VO=0V, VEN<VEL
IO=35µA,VEN<VEL
VPG=7V
VO in regulation
ISINK=0.4mA
1.176
2.0
0
0
115
1 µA
1.2 1.224 V
Vin V
0.4 V
0.1 µA
0.5 µA
0.5 1
µA
0.1 V
85 %VO(NOM)
%VO(NOM)
1 µA
7V
0.4 V
5
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AME8824.PDF ] | |
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