APL5151/2/3/4
Low I
Q
, Low Dropout 150mA Fixed Voltage Regulator
Features
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Low Noise : 60uV
RMS
(100Hz to 100kHz)
Low Quiescent Current : 50uA
Low Dropout Voltage : 300mV
(VOUT(Nominal)=3.0V Version @150mA)
Very low Shutdown Current : < 0.5uA
Fixed Output Voltage : 1.3V,1.4V,1.5V,1.6V,
1.7V,1.8V,1.9V, 2.0V,2.1V,2.2V,2.3V,2.4V,
2.5V,2.6V,2.7V, 2.8V, 2.85V,2.9V,3.0V,3.1V,
3.2V,3.3V,3.4V, 3.5V, 5.0V
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Stable with 1uF Output Capacitor
Stable with Aluminum , Tantalum or Ceramic
Capacitors
Reverse Current Protection
No Protection Diodes Needed
Built in Thermal Protection
Built in Current Limit Protection
Controlled Short Circuit Current : 50mA
Fast transient Response
Short Setting Time
SOT-23-5 Package
Lead Free Available (RoHS Compliant)
General Description
The APL5151/2/3/4 is micropower, low noise, low drop-
out linear regulator. Operate from 3V to 6V input volt-
age and deliver up to 150mA. Typical output noise is
just 60uV
RMS
with the addition of an external 0.33uF
bypass capacitor in BP pin and typical dropout voltage
is only 220mV at 150mA loading. Designed for use in
battery-powered system, the low 50uA quiescent cur-
rent makes it an ideal choice. Design with an internal
P-channel MOSFET pass transistor, the APL5151/2/
3/4 maintains a low supply current, independent of
the load current and dropout voltage. Other features
include reverse current protection, thermal-shutdown
protection, current limit protection to ensure speci-
fied output current and controlled short-circuit current.
The APL5151/2/3/4 regulators come in a miniature SOT-
23-5 package.
Pin Configuration
V
IN
GND
SHDN
1
2
3
5
V
OUT
SHDN
GND
1
2
3
5
BP
4
BP
V
IN
4
V
OUT
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APL5151
APL5152
Applications
V
OUT
1
2
3
4
SHDN
5
BP
SHDN
GND
BP
1
2
3
4
V
OUT
5
V
IN
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Notebook Computer
PDA or Portable Equipments
Noise-Sensitive Instrumentation Systems
GND
V
IN
APL5153
APL5154
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. B.4 - May., 2005
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
