3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX
Data Sheet
1
Apr. 2005 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
General Description
The AZ78LXX series are three terminal positive regu-
lators with several fixed output voltages. These regula-
tors can provide local on card regulation, eliminating
the distribution problems associated with single point
regulation. The AZ78LXX can be used in logic sys-
tems, instrumentation, HiFi, and other solid state elec-
tronic equipment. When used as a Zener diode/resistor
combination replacement, the AZ78LXX usually
results an effective output impedance improvement of
two orders of magnitude, and lower quiescent current.
With adequate heat sinking the AZ78LXX can deliver
100 mA output current. Current limiting is included to
limit the peak output current to a safe value. Thermal
protection is also provided. If internal power
dissipation becomes too high for the heat sinking
provided, the thermal shutdown circuit takes over
preventing the IC from overheating.
The AZ78LXX are available in the plastic TO-92,
SOIC-8, SOT-223 and SOT-89 packages.
Features
Output Current up to 100 mA
Fixed Output Voltage of 5V, 8V, 9V and 12V
Output Voltage Tolerances of 5% over the Full
Temperature Range
Internal Short Circuit Current-Limiting
Internal Thermal Overload Protection
No External Components
Applications
High Efficiency Linear Regulator
Post Regulation for Switching Supply
Microprocessor Power Supply
Mother Board I/O Power Supply
SOIC-8
Figure 1. Package Types of the AZ78LXX
TO-92
SOT-223
SOT-89
3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX
Data Sheet
2
Apr. 2005 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
Figure 2. Pin Configuration of the AZ78LXX (Top View)
M Package
(SOIC-8)
OUTPUT
GND
GND
N/C
8 INPUT
7 GND
6 GND
5 N/C
1
2
3
4
Z Package
(TO-92)
H Package
(SOT-223)
INPUT
GND
OUTPUT
GND
1
2
3
R Package
OUTPUT
GND
(SOT-89)
2
3
1
4
Connect pin 4 to pin 2 or leave
electrically isolated
pin 4
INPUT
GND
4
INPUT
GND
OUTPUT
1
2
3
Pin Configuration
3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX
Data Sheet
3
Apr. 2005 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
Figure 3. Functional Block Diagram of the AZ78LXX
OUTPUT
INPUT
GND
1
2, 4 (2, 3, 6, 7)
3 (8)
Functional Block Diagram
A(B)
A for 3-pin
B for 8-pin
3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX
Data Sheet
4
Apr. 2005 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
Ordering Information
Package
Temperature
Range
Part Number
Marking ID
Packing Type
Tin Lead
Lead Free
Tin Lead
Lead Free
TO-92
0 to 125
o
C
AZ78L05Z
AZ78L05Z-E1
AZ78L05Z
AZ78L05Z-E1
Bulk
AZ78L05ZTR
AZ78L05ZTR-E1
AZ78L05Z
AZ78L05Z-E1
Ammo
AZ78L08Z
AZ78L08Z-E1
AZ78L08Z
AZ78L08Z-E1
Bulk
AZ78L08ZTR
AZ78L08ZTR-E1
AZ78L08Z
AZ78L08Z-E1
Ammo
AZ78L09Z
AZ78L09Z-E1
AZ78L09Z
AZ78L09Z-E1
Bulk
AZ78L09ZTR
AZ78L09ZTR-E1
AZ78L09Z
AZ78L09Z-E1
Ammo
AZ78L12Z
AZ78L12Z-E1
AZ78L12Z
AZ78L12Z-E1
Bulk
AZ78L12ZTR
AZ78L12ZTR-E1
AZ78L12Z
AZ78L12Z-E1
Ammo
SOIC-8
0 to 125
o
C
AZ78L05M
AZ78L05M-E1
78L05M
78L05M-E1
Tube
AZ78L05MTR
AZ78L05MTR-E1
78L05M
78L05M-E1
Tape & Reel
AZ78L08M
AZ78L08M-E1
78L08M
78L08ZM-E1
Tube
AZ78L08MTR
AZ78L08MTR-E1
78L08M
78L08M-E1
Tape & Reel
AZ78L09M
AZ78L09M-E1
78L09M
78L09M-E1
Tube
AZ78L09MTR
AZ78L09MTR-E1
78L09M
78L09M-E1
Tape & Reel
AZ78L12M
AZ78L12M-E1
78L12M
78L12M-E1
Tube
AZ78L12MTR
AZ78L12ZMTR-E1
78L12M
78L12M-E1
Tape & Reel
SOT-89
0 to 125
o
C
AZ78L05RTR
AZ78L05RTR-E1
R78A
E78A
Tape & Reel
AZ78L08RTR
AZ78L08RTR-E1
R78B
E78B
Tape & Reel
AZ78L09RTR
AZ78L09RTR-E1
R78C
E78C
Tape & Reel
AZ78L12RTR
AZ78L12RTR-E1
R78D
E78D
Tape & Reel
SOT-223
0 to 125
o
C
AZ78L05HTR
AZ78L05HTR-E1
H78A
EH78A
Tape & Reel
AZ78L08HTR
AZ78L08HTR-E1
H78B
EH78B
Tape & Reel
AZ78L09HTR
AZ78L09HTR-E1
H78C
EH78C
Tape & Reel
AZ78L12HTR
AZ78L12HTR-E1
H78D
EH78D
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Circuit Type
Package
Z: TO-92
E1: Lead Free
Blank: Tin Lead
AZ78L
-
TR: Tape and Reel or Ammo
Blank: Tube or Bulk
R: SOT-89
Output Voltage
05: 5V
08: 8V
09: 9V
12: 12V
H: SOT-223
M: SOIC-8
3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX
Data Sheet
5
Apr. 2005 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
Parameter Symbol
Value
Unit
Input Voltage
V
CC
20
V
Operating Junction Temperature Range
T
J
0 to125
o
C
Lead Temperature (Soldering, 10sec)
T
LEAD
265
o
C
Power Dissipation (T
A
=25
o
C)
P
D
TO-92
0.65
W
SOIC-8
0.6
SOT-223
0.7
SOT-89
0.65
Storage Temperature Range
T
STG
-65 to 150
o
C
ESD (Machine Model)
300
V
N
ote 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.
Parameter
Symbol
Min
Max
Unit
Operating Junction Temperature Range
T
J
0 125
o
C
Recommended Operating Conditions
Absolute Maximum Ratings (Note 1)
PDF 
ZIP