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AP78L05 Datasheet

3-TERMINAL POSITIVE REGULATORS

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AP78L05 pdf
AP78L05/08/12
AP78LXX SERIES 3-TERMINAL POSITIVE REGULATORS
Description
The AP78LXX Series is a three terminal positive regulator
available with fixed output voltages from 5V, 8V and 12V,
making them useful in a wide range of applications. When
used as a Zener diode/resistor combination replacement, the
AP78LXX can improve output impedance by two orders of
magnitude, and lower quiescent current. These regulators
can provide local on card regulation, eliminating the
distribution problems associated with single point regulation.
The voltages available allow the AP78LXX's to be used in
logic systems. Instrumentation, HiFi and other solid state
electronic equipment.
The AP78LXX is available in the plastic TO92, SOT89 and
SO-8 using industrial standard package technology. The
regulator can deliver 100mA output current with adequate
heat sinking. Current limiting is included to limit the peak
output current to a safe value. Safe area protection for the
output transistors is provided to limit internal power
dissipation. Thermal overload protection is integrated to
prevent the IC from overheat due to abnormal condition.
Pin Assignments
(Bottom View)
VOUT GND VIN
TO92
(Top View)
VOUT 1
GND 2
GND 3
NC 4
SO-8
8 VIN
7 GND
6 GND
5 NC
Features
Output voltages of 5.0V, 8.0V, 12V
Output voltage tolerances of ±5% over the operating
temperature ranges
Output current in excess of 100mA
Internal thermal overload protection
Output transistor safe area protection
Internal short circuit current limiting
No external components
Available in plastic TO92, SOT89 and plastic SO-8 low
profile packages
Lead Free Package: TO92 (Note 1)
SO-8 and SOT89: Available in “Green” Molding
Compound (No Br, Sb) (Note 2)
Lead Free Finish / RoHS Compliant (Note 3)
(Top View)
123
VOUT GND VIN
SOT89
Applications
Communication
CD-ROM
DVD-Player
Set-Top Box
Notes:
1. TO92 is available in “Lead Free” product only.
2. SO-8 and SOT89 are available in “Green” products only.
3. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2). All applicable RoHS exemptions applied.
AP78L05/08/12
Document number: DS31054 Rev. 10 - 2
1 of 16
www.diodes.com
March 2012
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

AP78L05 Datasheet

3-TERMINAL POSITIVE REGULATORS

No Preview Available !

AP78L05 pdf
AP78L05/08/12
AP78LXX SERIES 3-TERMINAL POSITIVE REGULATORS
Typical Application Circuit
Input
C1
0.33µF
Fixed Output Regulator
IN OUT
AP78Lxx
GND
Output
C2
0.1µF
(†) Required if the regulator is located more than 3” from the power supply filter
(‡) See Note 5 in the electrical characteristics table
Pin Descriptions
Pin Name
VIN
VOUT
GND
NC
Description
Operating Voltage Input
Voltage Output Pin
Ground
No Connection
Functional Block Diagram
Introduction
The AP78LXX series is a three terminal device with fixed output voltages from 5V,8V and 12V. The AP78LXX fixed voltage
regulator series has built-in thermal overload protection which prevents the device from being damaged due to excessive
junction temperature. The regulator also contains internal short-circuit protection which limits the maximum output current, and
safe-area protection for the pass transistor which reduces the short-circuit current as the voltage across the pass transistor is
increased.
AP78L05/08/12
Document number: DS31054 Rev. 10 - 2
2 of 16
www.diodes.com
March 2012
© Diodes Incorporated


Part Number AP78L05
Description 3-TERMINAL POSITIVE REGULATORS
Maker Diodes Incorporated
Total Page 16 Pages
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