Preliminary Datasheet
500mA 3-TERMINAL POSITIVE VOLTAGE REGULATOR
General Description
The AZ78MXX series are monolithic integrated cir-
cuits designed as fixed-voltage regulators for a wide
variety of applications including local, on-card regula-
tion.
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 sink-
ing are provided, these regulators can deliver output
currents up to 0.5A.
The AZ78MXX series are available in two standard
plastic packages: TO-220 and TO-252.
AZ78MXX
Features
·
·
·
·
·
Output Current up to 0.5A
Fixed Output Voltages of 5V, 6V, 8V, 9V and 12V
Output Voltage Tolerances of
±
5% over the Full
Temperature Range
Internal Short Circuit Current-Limiting
Internal Thermal Overload Protection
Applications
·
·
·
Consumer Electronics
Microprocessor Power Supply
Mother Board I/O Power Supply
TO-220
TO-252
Figure 1. Package Types of AZ78MXX
May 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
500mA 3-TERMINAL POSITIVE VOLTAGE REGULATOR
Pin Configuration
AZ78MXX
T Package
(TO-220)
D Package
(TO-252)
3
2
1
OUTPUT
GND
INPUT
3
2
1
OUTPUT
GND
INPUT
Figure 2. Pin Configuration of AZ78MXX (Top View)
Pin Description
Pin Number
Pin Name
Function
1
2
3
INPUT
GND
OUTPUT
Voltage Input
Ground
Voltage Output
May 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
500mA 3-TERMINAL POSITIVE VOLTAGE REGULATOR
Functional Block Diagram
INPUT
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
OUTPUT
R20
R21
AZ78MXX
R13
GND
Figure 3. Functional Block Diagram of AZ78MXX
May 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
500mA 3-TERMINAL POSITIVE VOLTAGE REGULATOR
Ordering Information
AZ78MXX
Circuit Type
-
E1: Lead Free
AZ78MXX
Blank: Tin Lead
TR: Tape and Reel
05: AZ78M05
06: AZ78M06
08: AZ78M08
09: AZ78M09
12: AZ78M12
Blank: Tube
Package
T: TO-220
D: TO-252
Package
Temperature
Range
Part Number
Tin Lead
AZ78M05T
AZ78M06T
Lead Free
AZ78M05T-E1
AZ78M06T-E1
AZ78M08T-E1
AZ78M09T-E1
AZ78M12T-E1
AZ78M05D-E1
AZ78M05DTR-E1
AZ78M06D-E1
AZ78M06DTR-E1
AZ78M08D-E1
AZ78M08DTR-E1
AZ78M09D-E1
AZ78M09DTR-E1
AZ78M12D-E1
AZ78M12DTR-E1
Marking ID
Tin Lead
AZ78M05T
AZ78M06T
AZ78M08T
AZ78M09T
AZ78M12T
AZ78M05D
AZ78M05D
AZ78M06D
AZ78M06D
AZ78M08D
AZ78M08D
AZ78M09D
AZ78M09D
AZ78M12D
AZ78M12D
Lead Free
AZ78M05T-E1
AZ78M06T-E1
AZ78M08T-E1
AZ78M09T-E1
AZ78M12T-E1
AZ78M05D-E1
AZ78M05D-E1
AZ78M06D-E1
AZ78M06D-E1
AZ78M08D-E1
AZ78M08D-E1
AZ78M09D-E1
AZ78M09D-E1
AZ78M12D-E1
AZ78M12D-E1
Packing
Type
Tube
Tube
Tube
Tube
Tube
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
TO-220
-40 to 125
o
C
AZ78M08T
AZ78M09T
AZ78M12T
AZ78M05D
AZ78M05DTR
AZ78M06D
AZ78M06DTR
TO-252
-40 to 125
o
C
AZ78M08D
AZ78M08DTR
AZ78M09D
AZ78M09DTR
AZ78M12D
AZ78M12DTR
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
May 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
4
Preliminary Datasheet
500mA 3-TERMINAL POSITIVE VOLTAGE REGULATOR
Absolute Maximum Ratings (Note 1)
Parameter
Input Voltage
Lead Temperature (Soldering, 10 sec.)
Power Dissipation
Storage Temperature Range
ESD (Machine Model)
P
D
T
STG
ESD
Symbol
V
IN
Value
20
300
Internally Limited
-65 to 150
450
o
AZ78MXX
Unit
V
o
C
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
Supply Voltage
Operating Junction Temperature Range
Symbol
V
CC
T
J
Min
7.5
-40
Max
18
125
Unit
V
℃
May 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
5
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