APL5301/2
Low I
Q
, Low Dropout 300mA Fixed Voltage Regulator
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Low Quiescent Current : 50uA (No load)
Low Dropout Voltage : 400mV
(VOUT(Nominal)=3.0V Version @300mA)
Very low Shutdown Current : < 0.5uA
Fixed Output Voltage : 1.3V ~ 5.0V
by step 0.1V increment
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
SOP-8, SOT-23, SOT-23-5, SOT-89,
and SOT-89-5 Packages
General Description
The APL5301/2 series are micropower, low noise, low
dropout linear regulators, which operate from 3V to
6V input voltage and deliver up to 300mA. Typical
dropout voltage is only 260mV at 300mA loading. De-
signed for use in battery-powered system, the low 50uA
quiescent current makes it an ideal choice. Design
with an internal P-channel MOSFET pass transistor,
the APL5301/2 maintain a low supply current, inde-
pendent of the load current and dropout voltage.
Other features include reverse current protection, ther-
mal-shutdown protection, current limit protection to
ensure specified output current and controlled short-
circuit current. The APL5301/2 regulators come in a
miniature SOP-8, SOT-23, SOT-23-5, SOT-89 and
SOT-89-5 packages.
Pin Configuration
V
IN
3
1
2
V
OUT
1
2
3
T A B is V
IN
G ND
GND
V
IN
V
OUT
Applications
•
•
•
Notebook Computer
PDA or Portable Equipments
Noise-Sensitive Instrumentation Systems
SOT-23 (Top View)
APL5301
SOT-89 (Top View)
APL5301
BP
GND SHDN
V
OUT
GND
V
IN
1
2
3
5
BP
5
1
2
4
3
4
SHDN
V
OUT
G N D
V
IN
SOT-23-5 (Top View)
APL5301
SOT-89-5 (Top View)
APL5301
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.1 - Mar., 2004
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
