APL1087
800mA Low Dropout Fast Response Positive Adjustable Regulator and Fixed
1.8V, 2.5V and 3.3V
Features
General Description
The APL1087 is a low dropout three-terminal adjust-
able regulators with 0.8A output current capability.
In order to obtain lower dropout voltage and faster
transient response, which is critical for low voltage
applications , the APL1087 has been optimized.
The device is available in an adjustable version and
fixed output voltages of 1.8V, 2.5V and 3.3V, the out-
put available voltage range is from 1.25~7.15V with
an input supply below 9V. Dropout voltage is guaran-
teed at a maximum of 1.45V at 0.5A.
Current limit is trimmed to ensure specified output
current and controlled short-circuit current. On-chip
thermal limiting provides protection against any com-
bination of overload that would create excessive junc-
tion temperatures.
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Guaranteed Output Voltage Accuracy within 2%
Fast Transient Response
Guaranteed Dropout Voltage at Multiple Cur-
rents
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Load Regulation : 0.6% Typ.
Line Regulation : 0.03% Typ.
Low Dropout Voltage : 1.3V Typ. at IOUT =500mA
Current Limit : 0.8A Min. at TJ=125°C
On-Chip Thermal Limiting : 150 °C Typ.
Adjustable Output : 1.25~7.15V
Standard 3-pin SOT-89, SOT-223, TO-92 and
TO- 252 Power Packages.
The APL1087 is available in the industry standard 3-
pin SOT-89, SOT-223, TO-92 and TO-252 power
packages.
Pin Description
Applications
V O U T
VOUT
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Voltage Regulator for CD-ROM Drivers
Voltage Regulator for LAN Cards
Voltage Regulator for mother Boards
Wireless Communication Systems
Portable Instrument
APL1087
1
2
3
1
2
3
ADJ/GND
VOUT
VIN
A D J/G N D
V O U T
V IN
SOT-89 (Front View)
SOT-223 (Front View)
Portable Consumer Equipment
Low Voltage Systems
VOUT
3
2
1
VIN
VOUT
1
2
3
ADJ/GND
ADJ/GND OUT IN
TO-92 (Top View)
TO-252 (Top View)
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.8 - Mar., 2004
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
