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What is AP78L08?

This electronic component, produced by the manufacturer "Diodes Incorporated", performs the same function as "3-TERMINAL POSITIVE REGULATORS".


AP78L08 Datasheet PDF - Diodes Incorporated

Part Number AP78L08
Description 3-TERMINAL POSITIVE REGULATORS
Manufacturers Diodes Incorporated 
Logo Diodes Incorporated Logo 


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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

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AP78L08 equivalent
AP78L05/08/12
AP78LXX SERIES 3-TERMINAL POSITIVE REGULATORS
AP78Lxx Electrical Characteristics (cont.)
AP78L08
Unless otherwise specified, VIN = 14V
Symbol
Parameter
Conditions
Min
Typ.
Max
7.7 8 8.3
VO Output Voltage
ΔVO Line Regulation
ΔVO Load Regulation
IQ Quiescent Current
ΔIQ Quiescent Current Change
VN Output Noise Voltage
10.5V VIN 23V
1mA IO 40mA
1mA IO 70mA
10.5V VIN 23V
11V VIN 23V
1mA IO 100mA
1mA IO 40mA
11V VIN 23V
1mA IO 40mA
f = 10Hz to 100kHz
(Note 4)
7.6 8.4
7.6 8.4
42 175
36 125
18 80
10 40
2 5.5
1.5
0.1
- 54
ΔVIN/ΔVOUT Ripple Rejection
IPK
ΔVO/ΔT
VIN(MIN)
Peak Output Current
Average Output Voltage Tempco
Minimum Value of Input Voltage
Required to Maintain Line Regulation
f = 120Hz
13V VIN 23V
IO = 5mA
37 46
140
-0.8
9.7
θJA
Thermal Resistance Junction to
Ambient
TO92 (Note 5)
SO-8 (Note 6)
SOT89 (Note 7)
176
153
157
TO92 (Note 5)
θJC Thermal Resistance Junction to case SO-8 (Note 6)
SOT89 (Note 7)
33
18
33
Notes:
4. Recommend 0.01µF minimum load capacitance at output to suppress high frequency noise.
5. Test conditions for TO92: No heat sink, no air flow.
6. Test conditions for SO-8: Device mounted on 2oz copper, minimum recommended pad layout, FR-4 PCB.
7. Test conditions for SOT89: Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.
Unit
V
mV
mV
mA
µV
dB
mA
mV/ oC
V
oC/W
oC/W
AP78L05/08/12
Document number: DS31054 Rev. 10 - 2
5 of 16
www.diodes.com
March 2012
© Diodes Incorporated


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