APL5308 Datasheet, PDF (1/13 Pages) Anpec Electronics Coropration – Low IQ, Low Dropout 300mA Fixed Voltage Regulator

APL5308/9
Low I_Q, Low Dropout 300mA Fixed Voltage Regulator
Features
General Description
• 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
Applications
• 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
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
GND
3
1
2
GND VOUT
SOT-23 (Top View)
APL5308
NC NC
V OUT
V IN
SOT-23 (Top View)
APL5309
VOUT NC
5
4
123
G ND V IN V OUT
SOT-23-5 (Top View)
APL5308
T A B is V IN
5
4
123
VIN _{G ND NC}
SOT-23-5 (Top View)
APL5309
TA B is G ND
1
2
3
1
2
3
GND
V IN
V OUT
V OUT G ND
V IN
SOT-89 (Top View)
SOT-89 (Top View)
APL5308
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.
1
Rev. A.7 - Mar., 2004
www.anpec.com.tw