APL5312
Ultra-Low-Noise, High PSRR, Low-Dropout, 300mA Linear Regulator
Features
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Wide Operating Voltage: 2.3V~6V
Low Dropout Voltage: 290mV @ 3V/300mA
Fixed Output Voltages: 1.5V~3.5V
with step 100mV, 2.85V
Guaranteed 300mA Output Current
High PSRR: 74dB before 10KHz
Low Output Noise: 36µV
RMS
at 100Hz
to 100KHz
Current Limit Protection
Controlled Short Circuit Current: 50mA
Over Temperature Protection
Stable with 1µF Capacitor for Any Load
Excellent Load/Line Transient
SOT23-5 and SC70-5 Packages
Lead Free Available (RoHS Compliant)
General Description
The APL5312 is a ultra low noise, low dropout linear
regulator, which operate from 2.3V to 6V input voltage
and deliver up to 300mA. Typical dropout voltage is
only 290mV at 300mA loading. Designed for use in
RF applications, the high PSRR 74dB and low noise
36µV
RMS
makes it an ideal choice.
Design with an internal P-channel MOSET pass
element, the APL5312 maintain a low supply current,
independent of the load current and dropout voltage.
Other features include thermal-shutdown protection
and current limit protection to ensure specified output
current and controlled short-circuit current. The
APL5312 regulator come in a miniature SOT23-5 and
SC70-5 package.
Pin Configuration
SOT23-5/
SC70-5
V
IN
1
2
3
4
BP
5
V
OUT
Applications
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Cellular Phones
Portable and Battery-Powered Equipment
Wireless LANs
GPS
GND
SHDN
APL5312
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Sep., 2005
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
