AS7812T-G1 [DIODES]
Regulator;
DIODES INCORPORATED 
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
General Description
Features
·
·
Output Current up to 1A
Fixed Output Voltages of 5V, 8V, 9V, 12V and
15V
The AS78XX series are three terminal positive regula-
tors designed for a wide variety of applications includ-
ing local, on-card regulation.
·
Output Voltage Accuracy of ±4% over the Full
Temperature Range
The AS78XX are complete with internal current limit-
ing, thermal shutdown protection, and safe-area com-
pensation which make them virtually immune from
output overload. If adequate heat sinking are provided,
these regulators can deliver output currents up to 1A.
·
·
·
Internal Short Circuit Current Limiting
Internal Thermal Overload Protection
Output Transistor Safe-area Protection
Applications
The AS78XX are available in TO-220-3 and TO-252-2
(1) packages.
·
·
·
·
High Efficiency Linear Regulator
Post Regulation for Switching Supply
Microprocessor Power Supply
Mother Board
TO-220-3
TO-252-2 (1)
Figure 1. Package Types of AS78XX
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
1
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Pin Configuration
T Package
(TO-220-3)
D Package
(TO-252-2 (1) )
3
2
1
OUTPUT
3
2
1
OUTPUT
GND
GND
INPUT
INPUT
Figure 2. Pin Configuration of AS78XX (Top View)
Pin Description
Pin Number
Pin Name
INPUT
Function
1
2
3
Voltage Input
Ground
GND
OUTPUT
Voltage Output
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
2
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Functional Block Diagram
1
INPUT
R9
D1
Zener
Q9
Q14
R16
Q21
Q24
R20
C1
R21
R1
Q18
R12
R17
R18
R23
3
Q6
OUTPUT
Q3
R2
2
Q10
Q11
Q22
R3
R7
Q7
Q8
Q1
Q4
Q16
R4
R5
R14
R15
R11
R6
Q23
Q13
Q15
Q2
Q5
R19
C2
Q19
Q17
Q20
Q12
R2
R13
R8
R10
2
GND
Figure 3. Functional Block Diagram of AS78XX
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
3
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Ordering Information
-
AS78XX
E1: Lead Free
G1: Green
Circuit Type
TR: Tape and Reel
Blank: Tube
Output Voltage
05: 5V
08: 8V
09: 9V
12: 12V
15: 15V
Package
T: TO-220-3
D: TO-252-2 (1)
Part Number
Marking ID
Temperature
Package
Packing Type
Range
Lead Free
Green
AS7805T-G1
AS7808T-G1
AS7809T-G1
AS7812T-G1
AS7815T-G1
AS7805D-G1
Lead Free
Green
AS7805T-E1
AS7805T-E1
AS7808T-E1
AS7809T-E1
AS7812T-E1
AS7815T-E1
AS7805D-E1
AS7805D-E1
AS7808D-E1
AS7808D-E1
AS7809D-E1
AS7809D-E1
AS7812D-E1
AS7812D-E1
AS7815D-E1
AS7815D-E1
AS7805T-G1
AS7808T-G1
AS7809T-G1
AS7812T-G1
AS7815T-G1
AS7805D-G1
AS7805D-G1
AS7808D-G1
AS7808D-G1
AS7809D-G1
AS7809D-G1
AS7812D-G1
AS7812D-G1
AS7815D-G1
AS7815D-G1
Tube
Tube
AS7808T-E1
-40 to 125oC
TO-220-3
AS7809T-E1
Tube
AS7812T-E1
Tube
AS7815T-E1
Tube
AS7805D-E1
AS7805DTR-E1
AS7808D-E1
AS7808DTR-E1
AS7809D-E1
AS7809DTR-E1
AS7812D-E1
AS7812DTR-E1
AS7815D-E1
AS7815DTR-E1
Tube
AS7805DTR-G1
AS7808D-G1
Tape & Reel
Tube
AS7808DTR-G1
AS7809D-G1
Tape & Reel
Tube
-40 to 125oC
TO-252-2 (1)
AS7809DTR-G1
AS7812D-G1
Tape & Reel
Tube
AS7812DTR-G1
AS7815D-G1
Tape & Reel
Tube
AS7815DTR-G1
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
4
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
VIN
Value
Unit
Input Voltage
36
260
V
oC
W
TLEAD
PD
Lead Temperature (Soldering, 10sec)
Power Dissipation
Internally Limited
150
oC
oC
TJ
Operating Junction Temperature
Storage Temperature Range
TSTG
-65 to 150
TO-220-3
TO-252-2 (1)
60
oC/W
θJA
Thermal Resistance
100
ESD (Human Body Model)
ESD (Machine Model)
ESD
ESD
3000
400
V
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
Symbol
Min
Max
25
Unit
V
AS7805
AS7808
AS7809
AS7812
AS7815
25
VIN
Input Voltage
25
30
30
oC
TJ
Operating Junction Temperature Range
-40
125
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Electrical Characteristics
AS7805 (VIN=10V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.)
Parameter
Symbol
Conditions
Min Typ Max Unit
TJ=25oC
4.9
5
5.1
VOUT
Output Voltage
V
IOUT=5mA to 1A, VIN=7.5V to 20V,
4.8
5.2
PD≤15W
VIN=7.5V to 20V, IOUT=1A, TJ=25oC
VIN=10V, IOUT=5mA to 1A, TJ=25oC
VIN=10V, IOUT=0
VRLINE
VRLOAD
IQ
Line Regulation
Load Regulation
Quiescent Current
7
25
50
100
6
mV
mV
mA
3.2
0.3
0.08
73
VIN=8V to 25V, IOUT=500mA, TJ=25oC
IOUT=5mA to 1A, TJ=25oC
0.8
0.5
∆IQ
mA
Quiescent Current Change
VIN=8V to 18V, f=120Hz, IOUT=500mA
Ripple Rejection
PSRR
dB
V
∆VOUT=1%, IOUT=1A, TJ=25oC
VDROP
Dropout Voltage
2
f=10Hz to 100kHz, TA=25oC
NO
µV/VO
mΩ
A
Output Noise Voltage
Output Resistance
Short Circuit Current
Peak Output Current
10
RO
ISC
f=1kHz
10
VIN=35V, TA=25oC
VIN=10V, TJ=25oC
0.2
2.2
0.4
80
IPK
A
mV/oC
ppm/oC
∆VOUT/∆T
(∆VOUT/VOUT)/∆T
Output Voltage
Temperature Coefficient
AS7808 (VIN=14V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.)
Parameter
Symbol
Conditions
Min Typ Max Unit
TJ=25oC
7.84
8
8.16
VOUT
Output Voltage
V
IOUT=5mA to 1A, VIN=10.6V to 23V,
7.7
8.3
PD≤15W
VIN=10.6V to 23V, IOUT=1A, TJ=25oC
VIN=14V, IOUT=5mA to 1A, TJ=25oC
VIN=14V, IOUT=0
VRLINE
VRLOAD
IQ
Line Regulation
Load Regulation
Quiescent Current
12
25
80
100
6
mV
mV
mA
3.2
0.08
0.1
VIN=8V to 25V, IOUT=500mA, TJ=25oC
0.4
0.5
∆IQ
mA
dB
Quiescent Current Change
Ripple Rejection
IOUT=5mA to 1A, TJ=25oC
VIN=11.5V to 21.5V, f=120Hz,
IOUT=500mA
PSRR
62
∆VOUT=1%, IOUT=1A, TJ=25oC
f=10Hz to 100kHz, TA=25oC
VDROP
Dropout Voltage
2
10
V
µV/VO
mΩ
A
NO
Output Noise Voltage
Output Resistance
Short Circuit Current
Peak Output Current
RO
ISC
f=1kHz
10
VIN=35V, TA=25oC
VIN=14V, TJ=25oC
0.2
2.2
0.64
80
IPK
A
mV/oC
ppm/oC
∆VOUT/∆T
(∆VOUT/VOUT)/∆T
Output Voltage
Temperature Coefficient
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Electrical Characteristics (Continued)
AS7809 (VIN=15V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.)
Parameter
Symbol
Conditions
Min Typ Max Unit
TJ=25oC
8.82
9
9.18
VOUT
Output Voltage
V
IOUT=5mA to 1A, VIN=11.5V to 23V,
8.65
9.35
PD≤15W
VIN=11.5V to 23V, IOUT=1A, TJ=25oC
VIN=15V, IOUT=5mA to 1A, TJ=25oC
VIN=15V, IOUT=0
VRLINE
VRLOAD
IQ
Line Regulation
Load Regulation
Quiescent Current
12
25
90
100
6
mV
mV
mA
3.2
VIN=11.5V to 23V, IOUT=500mA,
0.08
0.1
61
0.4
0.5
TJ=25oC
∆IQ
Quiescent Current Change
mA
I
OUT=5mA to 1A, TJ=25oC
VIN=11.5V to 21.5V, f=120Hz,
Ripple Rejection
PSRR
dB
I
OUT=500mA
∆VOUT=1%, IOUT=1A, TJ=25oC
f=10Hz to 100kHz, TA=25oC
VDROP
Dropout Voltage
2
10
V
µV/VO
mΩ
A
NO
Output Noise Voltage
Output Resistance
Short Circuit Current
Peak Output Current
RO
ISC
f=1kHz
10
VIN=35V, TA=25oC
VIN=15V, TJ=25oC
0.2
2.2
0.72
80
IPK
A
mV/oC
ppm/oC
∆VOUT/∆T
(∆VOUT/VOUT)/∆T
Output Voltage
Temperature Coefficient
AS7812 (VIN=19V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.)
Parameter
Symbol
Conditions
Min Typ Max Unit
TJ=25oC
11.75
12
12.25
VOUT
Output Voltage
V
IOUT=5mA to 1A, VIN=14.8V to 27V,
11.5
12.5
PD≤15W
VIN=14.8V to 27V, IOUT=1A, TJ=25oC
VIN=19V, IOUT=5mA to 1A, TJ=25oC
VIN=19V, IOUT=0
VRLINE
VRLOAD
IQ
Line Regulation
Load Regulation
Quiescent Current
16
25
120
100
6
mV
mV
mA
3.4
0.3
0.08
60
VIN=15V to 30V, IOUT=500mA, TJ=25oC
IOUT=5mA to 1A, TJ=25oC
0.8
0.5
∆IQ
mA
Quiescent Current Change
VIN=15V to 25V, f=120Hz, IOUT=500mA
Ripple Rejection
PSRR
dB
V
∆VOUT=1%, IOUT=1A, TJ=25oC
VDROP
Dropout Voltage
2
f=10Hz to 100kHz, TA=25oC
NO
µV/VO
mΩ
A
Output Noise Voltage
Output Resistance
Short Circuit Current
Peak Output Current
10
RO
ISC
f=1kHz
11
VIN=35V, TA=25oC
VIN=19V, TJ=25oC
0.2
2.2
0.96
80
IPK
A
mV/oC
ppm/oC
∆VOUT/∆T
(∆VOUT/VOUT)/∆T
Output Voltage
Temperature Coefficient
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Electrical Characteristics (Continued)
AS7815 (VIN=23V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.)
Parameter
Symbol
Conditions
Min Typ Max Unit
TJ=25oC
14.7
15
15.3
VOUT
Output Voltage
V
IOUT=5mA to 1A, VIN=17.9 to 30V,
14.4
15.6
PD≤15W
VIN=17.9V to 30V, IOUT=1A, TJ=25oC
VIN=23V, IOUT=5mA to 1A, TJ=25oC
VIN=23V, IOUT=0
VRLINE
VRLOAD
IQ
Line Regulation
Load Regulation
Quiescent Current
18
25
150
100
6
mV
mV
mA
3.4
0.3
VIN=17.5V to 30V, IOUT=500mA, TJ=25oC
0.8
∆IQ
mA
dB
Quiescent Current Change
Ripple Rejection
IOUT=5mA to 1A, TJ=25oC
VIN=18.5V to 28.5V, f=120Hz,
IOUT=500mA
0.08 0.5
58
PSRR
∆VOUT=1%, IOUT=1A, TJ=25oC
f=10Hz to 100kHz, TA=25oC
VDROP
Dropout Voltage
2
V
µV/VO
mΩ
A
NO
Output Noise Voltage
Output Resistance
Short Circuit Current
Peak Output Current
10
12
0.2
2.2
1.2
80
RO
ISC
f=1kHz
VIN=35V, TA=25oC
VIN=23V, TJ=25oC
IPK
A
mV/oC
ppm/oC
∆VOUT/∆T
(∆VOUT/VOUT)/∆T
Output Voltage
Temperature Coefficient
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
8
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Typical Performance Characteristics
5.050
5.025
2.5
AS7805
AS7805
VIN=10V
TC= -40oC
2.0
TC= 25oC
IOUT=10mA
5.000
TC= 125oC
4.975
1.5
4.950
1.0
0.5
0.0
4.925
4.900
4.875
4.850
-40
-20
0
20
40
60
80
100
120
3
6
9
12
15
18
21
24
Junction Temperature (oC)
VIN-VOUT (V)
Figure 5. Output Voltage vs. Junction Temperature
Figure 4. Peak Output Current vs. Input/Output
Differential Voltage
100
6
IOUT=0
AS7805
AS7805 VIN=10V
AS7812 VIN=19V
AS7815 VIN=23V
5
4
3
2
1
0
80
60
40
20
0
10
100
1k
10k
100k
1M
-40
-20
0
20
40
60
80
100
120
Junction Temperature (oC)
Frequency (Hz)
Figure 7. Ripple Rejection vs. Frequency
Figure 6. Quiescent Current vs. Junction Temperature
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
9
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Typical Performance Characteristics (Continued)
30
2.5
AS7805
Package: TO-220-3
Heatsink Size: 45*43 mm2
25
2.0
20
1.5
15
1.0
10
IOUT=100mA
IOUT=500mA
0.5
5
IOUT=1A
0
-40
0.0
-40
-20
0
20
40
60
80
100
120
-20
0
20
40
60
80
100
120
Case Temperature (oC)
Junction Temperature (oC)
Figure 9. Power Dissipation vs. Case Temperature
Figure 8. Dropout Voltage vs. Junction Temperature
6
5
4
3
30
AS7805
Package: TO-252-2 (1)
25
Heatsink Size: 45*43 mm2
20
15
10
5
2
AS7805
VIN=10V, IOUT=5mA
1
CIN= 0.33µF, COUT=0.1µF
0
0
-40
0
20
40
60
80
100
120
140
160
180
-20
0
20
40
60
80
100
120
Case Temperature (oC)
Junction Temperature (oC)
Figure 10. Power Dissipation vs. Case Temperature
Figure 11. Thermal Shutdown Protection
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
10
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Typical Performance Characteristics (Continued)
2
25
AS7805
1
0
AS7805
20
15
10
0.005A
-1
100
0
0
-50
-100
-150
-100
-200
Time (100µs/Div)
Time (40µs/Div)
Figure 12. Line Transient
Figure 13. Load Transient
(Conditions: IOUT=500mA, COUT=0.1µF)
(Conditions: VIN=10V, CIN=0.33µF, COUT=0.1µF)
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
11
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Typical Application
AS78XX
VIN
VOUT
INPUT
OUTPUT
GND
0.33µF
0.1µF
Figure 14. Typical Application of AS78XX
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
12
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Mechanical Dimensions
TO-220-3
Unit: mm(inch)
9.660(0.380)
2.580(0.102)
3.380(0.133)
10.660(0.420)
φ3.560(0.140)
4.060(0.160)
0.550(0.022)
1.350(0.053)
0.200(0.008)
φ1.500(0.059)
3.560(0.140)
4.820(0.190)
2.080(0.082)
2.880(0.113)
7°
0.381(0.015)
1.160(0.046)
1.760(0.069)
60°
0.813(0.032)
8.763(0.345)
0.381(0.015)
2.540(0.100)
0.356(0.014)
0.406(0.016)
2.540(0.100)
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
13
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS78XX
Mechanical Dimensions (Continued)
TO-252-2 (1)
Unit: mm(inch)
6.350(0.250)
6.650(0.262)
2.200(0.087)
2.400(0.094)
4.300(0.169)
5.400(0.212)
5.200(0.205)
5.400(0.213)
0.430(0.017)
0.580(0.023)
8°
0.000(0.000)
0.127(0.005)
5°
5°
0.700(0.028)
0.900(0.035)
0.500(0.020)
0.700(0.028)
3°
4°
2.300TYP
0.430(0.017)
0.580(0.023)
4.500(0.177)
4.700(0.165)
Aug. 2008 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
14
BCD Semiconductor Manufacturing Limited
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- Wafer Fab
BCD Semiconductor Manufacturing Limited
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.
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BCD Semiconductor Corp.
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相关型号：
AS7815AD-E1
Fixed Positive Standard Regulator, 15VBIPolar, PSSO2, ROHS COMPLIANT, TO-252, 3 PIN
DIODES
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