Preliminary Datasheet
100mA POSITIVE VOLTAGE REGULATOR
General Description
The AS78LXX series are three terminal positive regu-
lators designed for a wide variety of applications
including local, on-card regulation.
This series of regulators are complete with internal
current limiting, thermal shutdown protection, and
safe-area compensation which make them virtually
immune from output overload. If adequate heat sinking
are provided, these regulators can deliver output cur-
rents up to 100mA.
The AS78LXX series are available in TO-92 and SOT-
89-3 packages.
AS78LXX
Features
·
·
·
·
·
·
·
Output Current up to 100mA
Fixed Output Voltages of 5V, 12V, 15V, 18V and
24V
Output Voltage Accuracy of
±5%
over the Full
Temperature Range
Internal Short Circuit Current Limiting
Internal Thermal Overload Protection
No External Components
Output Transistor Safe-area Protection
Applications
·
·
·
Consumer Electronics
Microprocessor Power Supply
Mother Board
TO-92
SOT-89-3
Figure 1. Package Types of AS78LXX
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet
100mA POSITIVE VOLTAGE REGULATOR
Pin Configuration
AS78LXX
Z Package
(TO-92)
R Package
(SOT-89-3)
3
2
1
INPUT
GND
OUTPUT
GND
3
2
1
INPUT
GND
OUTPUT
Figure 2. Pin Configuration of AS78LXX (Top View)
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet
100mA POSITIVE VOLTAGE REGULATOR
Functional Block Diagram
3
R9
Q9
Q14
R16
Q21
Q24
C1
R1
Q18
R12
Q3
Q6
Q10
R3
Q11
Q7
Q1
Q4
R4
Q8
R11
R5
R6
Q23
Q13
Q2
Q5
Q15
C2
Q19
Q12
R2
R8
R10
Q17
Q20
R19
R15
R7
Q16
R14
Q22
R18
R2
2
R17
R23
R20
R21
D1
Zener
INPUT
AS78LXX
1
OUTPUT
R13
2
GND
Figure 3. Functional Block Diagram of AS78LXX
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet
100mA POSITIVE VOLTAGE REGULATOR
Ordering Information
AS78LXX
Circuit Type
Output Voltage
05: 05V
12: 12V
15: 15V
18: 18V
24: 24V
AS78LXX
-
E1: Lead Free
TR: Tape & Reel or Ammo
Blank: Bulk
Package
Z: TO-92
R: SOT-89-3
Package
Temperature
Range
Part Number
Tin Lead
Lead Free
AS78L05Z-E1
AS78L05ZTR-E1
AS78L12Z-E1
AS78L12ZTR-E1
Marking ID
Tin Lead
Lead Free
AS78L05Z-E1
AS78L05Z-E1
AS78L12Z-E1
AS78L12Z-E1
AS78L15Z-E1
AS78L15Z-E1
AS78L18Z-E1
AS78L18Z-E1
AS78L24Z-E1
AS78L24Z-E1
E78E
E78F
E78G
E78H
E78I
Packing Type
Bulk
Ammo
Bulk
Ammo
Bulk
Ammo
Bulk
Ammo
Bulk
Ammo
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
TO-92
-40 to 125
o
C
AS78L15Z-E1
AS78L15ZTR-E1
AS78L18Z-E1
AS78L18ZTR-E1
AS78L24Z-E1
AS78L24ZTR-E1
AS78L05RTR-E1
AS78L12RTR-E1
SOT-89-3
-40 to 125
o
C
AS78L15RTR-E1
AS78L18RTR-E1
AS78L24RTR-E1
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Feb. 2006 Rev. 1. 0
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet
100mA POSITIVE VOLTAGE REGULATOR
Absolute Maximum Ratings (Note 1)
Parameter
Input Voltage
Lead Temperature (Soldering, 10sec)
Power Dissipation
Storage Temperature Range
ESD (Machine Model)
Symbol
V
IN
T
LEAD
P
D
T
STG
ESD
Value
35
260
750
-65 to 150
250
Unit
V
o
C
AS78LXX
mW
o
C
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-
imum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Operating Junction Temperature Range
Symbol
T
J
Min
-40
Max
125
Unit
o
C
Feb. 2006 Rev. 1. 0
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BCD Semiconductor Manufacturing Limited
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