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AME8827 Schematic ( PDF Datasheet ) - Analog Microelectronics

Teilenummer AME8827
Beschreibung Low Dropout 1A CMOS Regulator
Hersteller Analog Microelectronics
Logo Analog Microelectronics Logo 




Gesamt 20 Seiten
AME8827 Datasheet, Funktion
AME
AME8827
Low Dropout 1A CMOS Regulator
n General Description
The AME8827 family of positive, CMOS linear regula-
tors and provide low dropout voltage (340mV @ 1A) and
excellent PSRR, thus making them ideal for power-sav-
ing systems. These rugged devices have both Thermal
Shutdown, and Current limit to prevent device failure un-
der the "Worst" of operating conditions.
The AME8827 is stable with an output capacitance of
4.7µF or larger.
n Typical Application
VIN
C1
1µF
AME8827
IN OUT
EN GND
VOUT
C2
4.7µF
n Features
l Low Dropout Voltage:340mV @ 1A
l Guaranteed 1A Drive current
l Over-Temperature Shutdown
l Current Limiting protection
l Excellent PSRR : 60dB(typ.)
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
l Input Voltage Range (2.5V - 5.5V)
l Output Voltage Range (1.2V - 3.6V)
l All AME's Green Products Meet RoHS
Standards
n Applications
l Motherboard, Desktop, and Computer
Peripherals
l LCD monitor
l Handheld Device
l Data-communication
n Function Block Diagram
IN
Overcurrent
Shutdown
Thermal
Shutdown
OUT
R1
Bandgap
Reference
R2 GND
Rev.A.11
1






AME8827 Datasheet, Funktion
AME
AME8827
Low Dropout 1A CMOS Regulator
n Absolute Maximum Ratings
Parameter
Symbol
Maximum
Unit
Input Voltage
Output Current
Output Voltage
ESD Classification
VIN
IOUT
VOUT
-0.3 to 6
PD /(V I N -V OUT)
GND-0.3 to VIN+0.3
B*
V
mA
V
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device.
* HBM B:2000V~3999V
n Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature Range
Storage Temperature Range
Symbol
TA
TJ
TSTG
Rating
-40 to +85
-40 to +125
-65 to +150
Unit
oC
6 Rev.A.11

6 Page









AME8827 pdf, datenblatt
AME
AME8827
Low Dropout 1A CMOS Regulator
n Characterization Curve(For reference only)
Line Transient Response
Load Transient Response
VIN = 2.5V~3.5V
VOUT = 1.2V
IOUT = 10mA
VOUT = 1.2V
IOUT = 10mA~1000mA
TIME (100µSec/DIV)
Short Circuit Current
VOUT = 3.3V
CIN = 10µF
COUT = 4.7µF
TIME (100µSec/DIV)
TIME (100µSec/DIV)
12 Rev.A.11

12 Page





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