APL5301 Datasheet, PDF (1/19 Pages) Anpec Electronics Coropration – Low IQ, Low Dropout 300mA Fixed Voltage Regulator

APL5301/2
Low I_Q, Low Dropout 300mA Fixed Voltage Regulator
Features
General Description
• 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
Applications
• Notebook Computer
• PDA or Portable Equipments
• Noise-Sensitive Instrumentation Systems
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
TA B is V IN
1
2
3
GND VOUT
G N D V IN
V OUT
SOT-23 (Top View)
APL5301
SOT-89 (Top View)
APL5301
BP GND SHDN
VOUT
1
GND
2
V IN
3
5
BP
4
SHDN
SOT-23-5 (Top View)
APL5301
5
4
1
2
3
VOUT G ND VIN
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.
1
Rev. B.1 - Mar., 2004
www.anpec.com.tw