APL5308/9
Low I
Q
, Low Dropout 300mA Fixed Voltage Regulator
Features
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Low Quiescent Current : 60µA (No load)
Low Dropout Voltage : 400mV (@300mA)
Fixed Output Voltage : 1.5V ~ 4.5V
by step 0.1V increment
Stable with 1uF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic
Capacitors .
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 ,SOT-23-5 and SOT-89 Packages
General Description
The APL5308/9 series are micropower, low dropout
linear regulators, which operate from 2.7V to 6V in-
put voltage and deliver up to 300mA. Typical dropout
voltage is only 400mV at 300mA loading. Designed
for use in battery-powered system, the low 60µA qui-
escent current makes it an ideal choice. Design with
an internal P-channel MOSFET pass transistor, the
APL5308/9 maintain a low supply current, indepen-
dent of the load current and dropout voltage. Other
features include thermal-shutdown protection current
limit protection to ensure specified output current and
controlled short-circuit current. The APL5308/9 regu-
lators come in a miniature SOT-23, SOT-23-5 and
SOT-89 packages.
Pin Configuration
V
IN
3
1
2
V
OUT
1
V
OUT
G ND
3
2
V
IN
Applications
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5V to 3.3~4.5V Linear Regulators
3.3V to 1.5~2.5V Linear Regulators
CD-ROM, CD-R/W and DVD Player
Networking System, LAN Card, ADSL/Cable
Modem, Cable Set-Top Box
PC Peripherals
G ND
SOT-23 (Top View)
APL5308
NC
5
1
2
NC
4
3
SOT-23 (Top View)
APL5309
V
OUT
5
1
2
NC
4
3
G ND V
IN
V
O U T
V
IN
G ND NC
SOT-23-5 (Top View)
APL5308
T A B is V
IN
SOT-23-5 (Top View)
APL5309
T A B is G N D
1
2
3
1
2
3
GND
V
IN
V
OUT
V
OUT
GND
V
IN
SOT-89 (Top View)
APL5308
SOT-89 (Top View)
APL5309
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.7 - Mar., 2004
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
