APL1086
1.5A Low Dropout Fast Response Positive Adjustable Regulator and Fixed
1.8V, 2.5V, 2.85V, and 3.3V
Features
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•
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•
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Guaranteed Output Voltage Accuracy within 2%
Fast Transient Response
Guaranteed Dropout Voltage at Multiple Currents
V
IN
+
10µ F
Improving Ripple Rejection
APL1086
IN
ADJ
OUT
R1
121Ω
1%
+
C1
10µ F
V
OUT
150µ F
R2
Load Regulation : 0.1% Typ.
Line Regulation : 0.03% Typ.
Low Dropout Voltage : 1.3V Typ. at I
OUT
=1.5A
Current Limit : 1.5A Min. at T
J
=125 °C
On-Chip Thermal Limiting : 150 °C Typ.
Adjustable Output : 1.25~10.7V
Standard 3-pin SOT-223, TO-252 , TO-220, and
TO-263 Power Packages
Lead Free and Green Devices Available
(RoHS Compliant)
365Ω
1%
* C1 improves ripple rejection.
X
C
should be approximately
equal to R1 at ripple frequency
General Description
The APL1086 is a low dropout three-terminal adjustable
regulators with 1.5A output current capability. In order to
obtain lower dropout voltage and faster transient
response, which is critical for low voltage applications,
the APL1086 has been optimized.
The device is available in an adjustable version and fixed
output voltages of 1.8V, 2.5V, 2.85V, and 3.3V, the output
available voltage range is from 1.25 to 10.7V with an input
supply below 12V. Dropout voltage is guaranteed at a
V
OUT1
Simplified Application Circuits
1.25V to 10.7V Adjustable Regulator
APL1086
V
IN
IN
ADJ
OUT
R1
121Ω
+
10µ F
C
1*
+
R2
1k
100µ F
C
2
maximum of 1.45V at 1.5A.
Current limit is trimmed to ensure specified output cur-
rent and controlled short-circuit current. On-chip thermal
limiting provides protection against any combination of
overload tha t would create excessi ve junc tion
temperatures.
* Needed if device is far from filter capacitors
V
OUT
=
1.250V
×
R1
+
R2
R1
The APL1086 is available in the industry standard 3-pin
SOT-223, TO-252, TO-220, or TO-263 power packages.
5V Regulator with Shutdown
APL1086
V
IN
+
10µ F
1k
TTL
1k
365Ω
1%
IN
ADJ
OUT
121Ω
1%
+
100µ F
5V
Applications
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Active SCSI Terminators
Low Voltage Logic Supplies
Battery-Powered Circuitry
Post Regulator for Switching Power Supply
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 - Dec., 2008
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
