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PDF PAM3103 Data sheet ( Hoja de datos )
| Número de pieza | PAM3103 | |
| Descripción | 300mA Adjustable High PSRR CMOS Linear Regulator | |
| Fabricantes | Power Analog Micoelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PAM3103 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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PAM3103
300mA Adjustable High PSRR CMOS Linear Regulator
Features
n Low Dropout Voltage: 180mV@ 300mA
www.datashe(eVt4Ou=.c3om.3V)
n Accuracy within ±2%
n Quiescent Current: 65μA Typ.
n High PSRR: 67dB@100Hz
n Excellent Line/Load Regulation
n Fast Response
n Current Limiting
n Short Circuit Protection
n Low Temperature Coefficient
n Shutdown Current: 0.5μA
n Thermal Shutdown
n Space Saving Packages SOT23-5 and
SC70-5
n Pb-Free Package
Applications
n Cordless Phone
n Cellular Phone
n Bluetooth Earphone
n Digital Camera
n Portable Electronics
n WLAN
n MP3 Player
General Description
The PAM3103 is a positive, adjustable linear
regulator. It features low quiescent current (65μA
Typ.) and low dropout voltage, making it ideal for
battery powered applications. The output voltage
is adjustable from 1.2V through 5V. Its high PSRR
makes it useful in applications that require AC
noise suppression on the input power supply.
Space-saving SOT23-5 and SC70-5 packages
are attractive for portable and handheld
applications. It has both thermal shutdown and a
current limit features to prevent device failure
under extreme operating conditions. It is stable
with an output capacitor of 2.2μF or greater.
Typical Application
Block Diagram
IN 1 VIN
5
VOUT
OUT
PAM3103
EN
3
CIN
1μF
GND
2
ADJ 4
R1 CC
100pF
CO
2.2μF
R2
VIN
EN
OverCurrent
Shutdown
Thermal
Protection
VO= V *REF ( R1+ R2) /R2
Reference
Error Amp
VOUT
ADJ
GND
Power Analog Microelectronics,Inc
www.poweranalog.com
1
09/2008 Rev 1.2
1 page  
PAM3103
300mA Adjustable High PSRR CMOS Linear Regulator
Typical Performance Characteristics(continued)
www.datash7ee.tL4uo.caodmRegulation Transient Response
8. Line Regulation Transient Response
Vo
AC
Coupling
Io
DC
Coupling
VIN
DC
Coupling
Vo
AC
Coupling
Vo
AC
Coupling
Io
DC
Coupling
IO=1mA to 100mA
IO=1mA to 300mA
Io=1mA,V =IN 3V to 5V
9. Power Supply Ripple Rejection
+0
-10
-20 IO=100mA
-30
d -40
B
-50
-60
IO=1mA
-70
-80
10 20
50 100 200 500 1k 2k 5k 10k 20k
Hz
VIN=3V,Vpp=1V
50k100k
Vo
AC
Coupling
Io
DC
Coupling
IO=100mA to 300mA
Power Analog Microelectronics,Inc
www.poweranalog.com
5
09/2008 Rev 1.2
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet PAM3103.PDF ] | |
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