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PDF AME8855 Data sheet ( Hoja de datos )
| Número de pieza | AME8855 | |
| Descripción | 600mA CMOS Regulator | |
| Fabricantes | Analog Microelectronics | |
| Logotipo |  |
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AME
AME8855
n General Description
The AME8855 family of positive, CMOS linear regula-
tors provide low dropout voltage(420mV@600mA), low
quiescent current, and low noise CMOS LDO. These
rugged devices have both Thermal Shutdown, and Cur-
rent limit to prevent device failure under the "Worst" of
operating conditions.
High PSRR, Low Noise, 600mA
CMOS Regulator
n Typical Application
IN OUT
IN OUT
AME8855
EN
GND
CIN
1µF
COUT
1µF
n Features
l Low Dropout Voltage: 420mV@600mA
l Guaranteed Current: 600mA
l Quiescent Current: 60µA (typ.)
l Over-Temperature Shutdown
l Current Limiting protection
l PSRR:60dB@10KHz
l Ultra-Low-Noise: 100µVRMS at 1Hz to 100KHz
l Low Temperature Coefficient
l Input Voltage Range 2.8V~5.5V
l Output Voltage Range: 0.8V ~ 4.3V
l Green Products Meet RoHS Standards
n Functional Block Diagram
IN OUT
Overcurrent
Shutdown
Thermal
Shutdown
EN
R1
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
-
AMP
+
Vref
R2
GND
Rev. C.02
1
Free Datasheet http://www.datasheet4u.com/
1 page  
AME
AME8855
n Pin Configuration
SOP-8
High PSRR, Low Noise, 600mA
CMOS Regulator
Pin Number
1
2
3
4
5
6
Pin Name
Pin Description
IN Input voltage pin; should be decoupled with 1µF or greater capacitor.
GND
Ground connection pin.
GND
OUT
NC
Ground connection pin.
LDO voltage regulator output pin; should be decoupled with a 1.0µF
or greater value low ESR ceramic capacitor.
No connection.
GND
Ground connection pin.
7
GND
Ground connection pin.
Enable pin, Active “high". When pulled “low”, the PMOS pass
8 EN transistor turns off, current consuming less than 1µA. When EN pin
floating outside, it’s weakly pulled high from internal MOS .
Rev. C.02
5
Free Datasheet http://www.datasheet4u.com/
5 Page 
AME
AME8855
High PSRR, Low Noise, 600mA
CMOS Regulator
n Electrical Specifications (Contd.)
Parameter
Power Supply
Rejection Ration
Output Voltage Noise
Enable High (Enabled)
Enable Low (Shutdown)
Enable Input Bias Current
Shutdown Current
Shutdown Output Voltage
Protection
Output Current Limit
Short-Circuit Current
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
Symbol
PSRR
eN
VEN,HI
VEN,LO
IEN,HI
IEN,LO
ISHDN
VOUT,SD
ILIM
ISC
TSHDN
TSHDN(HYS)
Test Condition
COUT=1uF, VOUT=0.8V
IOUT=10mA
VIN=2.8V
F=100Hz
F=1KHz
F=10KHz
IOUT=10mA, VOUT=0.8V,
f=1Hz to 100KHz
VIN(MIN) VIN 5.5V
VIN(MIN) VIN 5.5V
VEN=VIN
VEN=0V
VIN=5.0V, VEN=0V
IOUT=0.4mA, VEN=0V
Min
1.4
0
VOUT=0.9 x VOUT(NOM)
VOUT 0.6V
Shutdown, temperature increasing
750
Typ Max Units
60
60 dB
60
100 µVRMS
VIN
0.4
1
2
0.1 1
0.4
V
µA
µA
V
mA
300
150
oC
20
Note1: Dropout Voltage is measured at VOUT=VOUT(NOM)x98%
Note2:For VOUT below 2.0V, Dropout Voltage is the Input(MIN) Voltage to Output Voltage differential.
Rev. C.02
11
FreeDatasheethttp://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 34 Páginas | |
| PDF Descargar | [ Datasheet AME8855.PDF ] | |
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