ANPEC APL1088EC-TR, APL1088EC-PB, APL1088DC-TR, APL1088DC-PB Datasheet
APL1088
500mA Low Dropout Linear Regulator
Features General Description
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Output Voltage Accuracy ±
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Line Regulation - 1mV (typ.)
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Load Regulation - 6mV (typ.)
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Input Voltage Range up to 9V
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Internal Current Limiting and Thermal Shut-
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down Protections
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• SOT-89 and TO-92 Packages Available
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2.0%
Applications
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• Voltage Regulator for CD-ROM Drivers
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• Voltage Regulator for LAN Cards
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• Voltage Regulator for mother Boards
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• Wireless Communication Systems
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• Portable Instrument
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• Portable Consumer Equipment
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The APL1088 is a 3-pin low dropout linear regulator
with 2.0% accuracy of output voltage over line , load
and temperature variations. The output current capability of APL1088 is over 500mA. Dropout voltage
at 500mA output current is less than 1.5V(max). Both
output current limiting and thermal shutdown are built
in to provide maximal protection to the APL1088
against fault conditions. The over current and thermal shutdown circuits become active when the current exceed 500mA , or the junction temperature
reach 150°C. Normal operation is recovered when
junction temperature drops below 130°C.
IN
APL1088
213
OUT
V
ADJ
SOT-89 (Top View)
IN
V
TO-92 (Top View)
V
V
ADJ
out
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• Low Voltage Systems
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Ordering Information
APL1088
Handling Code
Temp. Range
Package Code
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.1 - Dec., 2000
Package Code
D : SOT-89 E : TO-92
Temp. Range
C : 0 to 70 C
Handling Code
TR : Tape & Reel PB : Plastic Bag
°
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APL1088
Block Diagram
V
IN
Thermal
Shutdown
-
+
V
REF
Current
Limit
GND
V
OUT
Absolute Maximum Ratings
Symbol Parameter Rating Unit
T
V
I
θ
OUT
T
T
STG
P
JA
IN
A
J
D
Input Voltage 9 V
Output Current 0.75 A
Operating Ambient Temperature Range 0 to 70
Operating Junction Temperature Range -40 to +150
Storage Temperature Range -65 to +150
Power Dissipation Internal limited mW
Thermal Resistance Junct ion to Ambie nt 180
C
°
C
°
C
°
C / W
°
Electrical Characteristics (T
=25°C, unless otherwise noted)
A
Symbol Parameter Test Conditions
V
Input Voltage 2.75 9 V
IN
V
I
I
REG
REG
Copyright ANPEC Electronics Corp.
Rev. A.1 - Dec., 2000
OUT
OUT
I
SC
I
ADJ
LMIN
Output Voltage I
Output Current Capability
Short Circuit Current
Adjustable Pin Current V
Minimum Load Current
Line Regulation
LINE
Load Regulation I
LOAD
=10mA 1.225 1.250 1.275 V
OUT
=3.3V , ∆ V
V
OUT
V
0.4V
<
OUT
=5V, No Load 60 120 uA
IN
2.75V ≤ V
=10mA, VIN= 5V to
I
OUT
≤ 9.00V,
IN
OUT
9V
=1mA~500mA 6 12 mV
OUT
=2%
APL1088
Min. Typ. Max.
Unit
500 mA
1.0 A
210mA
16mV
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APL1088
Electrical Characteristics cont. (T
Symbol Parameter Test Conditions
V
DROPOUT
PSRR
OTS
E
TC
Dropout V oltage
Power Supply Rejection
Ratio
I
=500mA, ∆ V
OUT
OUT
at 1kHz 55 dB
Over Temperature
Shutdown
Output Noise 100
N
Output Voltage
Temperature Coefficient
Application Schematic
Fixed 1.250V Output
IN
V
+++
IN
C
1uF
APL1088
=25°C, unless otherwise noted)
A
APL1088
Min. Typ. Max.
=1%
150
100
OUT1
C
0.1uF
OUT2
C
10uF
1500 mV
OUT
V
Unit
C
°
Vrms
µ
ppm/°C
Programmable Output setting by External Resistors(R1 and R2)
IN
V
++
1
C
10uF
* Required for stability, APL1088 :C2=10µF
* R1 is typically in range of 100Ω to 120Ω to meet Imin requirement.
Copyright ANPEC Electronics Corp.
Rev. A.1 - Dec., 2000
APL1088
R
1
R
2
R1/(R1+R2)=V
OUT
V
Solid Tantalum
C
2*
REF/VOUT
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