AS78XXA
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AS78XXA
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
Description
The AS78XXA series are three terminal positive voltage regulators
designed for a wide variety of applications including local, on-card
regulation.
The AS78XXA 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 is
provided, these regulators can deliver output currents up to 1A.
The AS78XXA are available in TO-252-2 (3), TO-252-2 (4), TO-252-2
(5), TO-220-3, TO-220-3 (2) and TO-220F-3 packages.
Applications
High Efficiency Linear Regulator
Post Regulation for Switching Supply
Microprocessor Power Supply
Mother Board
Features
Output Current up to 1A
Fixed Output Voltages of 5V, 6V, 8V, 9V, 12V, 15V and 18V
Output Voltage Accuracy of ±4% over the Full Temperature
Range
Internal Short Circuit Current Limiting
Internal Thermal Overload Protection
Output Transistor Safe-area Protection
Low Load Regulation
Stable Performance in High Temperature
TO-220-3, TO-220-3 (2) and TO-220F-3
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Lead-Free Packages: TO-252-2 (3), TO-252-2 (4), TO-252-2 (5)
Totally Lead-Free; RoHS Compliant (Notes 4 & 2)
Available in “Green” Packages: TO-220-3, TO-220-3 (2) and TO-
220F-3
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Lead-Free Packages, Available in “Green” Molding Compound:
TO-252-2 (3), TO-252-2 (4), TO-252-2 (5)
Totally Lead-Free & Fully RoHS Compliant (Notes 4 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
Pin Assignments
(Front View) (Front View)
TO-220-3 (Option 1) TO-220-3 (Option 2)
1
2
3
INPUT
OUTPUT
GND
1
2
3
INPUT
OUTPUT
GND
AS78XXA
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AS78XXA
Pin Assignments (Cont.)
(Front View) (Front View)
TO-220-3 (Option 3) TO-220-3 (2)
(Front View)
TO-220F-3
(Top View) (Top View)
TO-252-2 (3) (Option 1) TO-252-2 (3) (Option 2)
(Top View) (Top View)
TO-252-2 (4) TO-252-2 (5)
1
2
3
INPUT
OUTPUT
GND
1
2
3OUTPUT
INPUT
GND
1
2
3
INPUT
OUTPUT
GND
1
2
3OUTPUT
GND
INPUT
1
2
3
INPUT
OUTPUT
GND
1
2
3OUTPUT
GND
INPUT
1
2
3
INPUT
OUTPUT
GND
AS78XXA
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AS78XXA
Typical Applications Circuit
0.1F0.33F
AS78XXA
GND
INPUT OUTPUT
VIN VOUT
1
2
3
Pin Descriptions
Pin Number
Pin Name
Function
1
INPUT
Voltage Input
2
GND
Ground
3
OUTPUT
Voltage Output
Functional Block Diagram
R9
R7
R4
R3
R5
C1
R11
R19
R18
R14
R15
D1
Zener
R16
R17
R20
R23
R21
R2
2
OUTPUT
INPUT
R12
R2
R1
Q23
Q6
Q3
Q9 Q14
Q18
Q21
Q22
Q24
Q16
Q2
Q1 Q4
Q11
Q7
Q10
Q8
Q5
R8 R10
R6
R13
C2
Q12
Q15
Q13
Q17
Q19
Q20
GND
1
3
2
AS78XXA
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AS78XXA
Absolute Maximum Ratings (Note 5)
Symbol
Parameter
Rating
Unit
VIN
Input Voltage
36
V
TLEAD
Lead Temperature (Soldering, 10sec)
+260
°C
PD
Power Dissipation
Internally Limited
W
TJ
Operating Junction Temperature
+150
°C
TSTG
Storage Temperature Range
-65 to +150
°C
JA
Thermal Resistance
TO-220-3/TO-220-3 (2)
60
°C/W
TO-252-2 (3)/TO-252-2
(4)/TO-252-2 (5)
100
TO-220F-3
60
ESD
ESD (Human Body Model)
6000
V
ESD
ESD (Machine Model)
500
V
Note 5: 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 Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
Parameter
Min
Max
Unit
VIN
Input Voltage
AS7805A
—
25
V
AS7806A
—
26
AS7808A
—
28
AS7809A
—
29
AS7812A
—
32
AS7815A
—
32
AS7818A
—
32
TJ
Operating Junction Temperature Range
-40
+125
°C
AS78XXA
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AS78XXA
Electrical Characteristics
AS7805A (@ VIN = 10V, IOUT = 1A, TJ = -40 to +125°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOUT
Output Voltage
TJ = +25°C
4.9
5
5.1
V
IOUT = 5mA to 1A, VIN = 7.5V to
20V, PD ≤ 15W
4.8
—
5.2
VRLINE
Line Regulation
VIN = 7.5V to 20V,
IOUT = 500mA, TJ = +25°C
—
25
50
mV
VRLOAD
Load Regulation
VIN = 10V, IOUT = 5mA to 1A,
TJ = +25°C
—
20
50
mV
IQ
Quiescent Current
VIN = 10V, IOUT = 0
—
3.2
6
mA
∆IQ
Quiescent Current Change
VIN = 8V to 25V, IOUT = 500mA,
TJ = +25°C
—
0.3
0.8
mA
IOUT = 5mA to 1A, TJ = +25°C
—
0.08
0.5
PSRR
Ripple Rejection
VIN = 8V to 18V, f = 120Hz,
IOUT = 500mA
—
70
—
dB
VDROP
Dropout Voltage
∆VOUT = 1%, IOUT = 1A,
TJ = +25°C
—
2
—
V
NO
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C
—
10
—
µV/VO
RO
Output Resistance
f = 1kHz
—
10
—
mΩ
ISC
Short Circuit Current
VIN = 35V, TA = +25°C
—
0.05
—
A
IPK
Peak Output Current
VIN = 10V, TJ = +25°C
—
2.2
—
A
∆VOUT/∆T
Output Voltage Temperature
Coefficient
—
—
0.4
—
mV/°C
(∆VOUT/VOUT)/∆T
—
—
80
—
ppm/°C
θJC
Thermal Resistance
TO-220-3/TO-220-3 (2)
—
9
—
°C /W
TO-252-2 (3)/
TO-252-2 (4)/
TO-252-2 (5)
—
16
—
TO-220F-3
—
9
—
AS78XXA
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AS78XXA
Electrical Characteristics (Cont.)
AS7806A (@ VIN = 11V, IOUT = 1A, TJ = -40 to +125°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOUT
Output Voltage
TJ = +25°C
5.88
6
6.12
V
IOUT = 5mA to 1A, VIN = 8.6V to
21V, PD ≤ 15W
5.76
—
6.24
VRLINE
Line Regulation
VIN = 8.6V to 21V,
IOUT = 500mA, TJ = +25°C
—
25
60
mV
VRLOAD
Load Regulation
VIN = 11V, IOUT = 5mA to 1A,
TJ = +25°C
—
20
60
mV
IQ
Quiescent Current
VIN = 11V, IOUT = 0
—
3.2
6
mA
∆IQ
Quiescent Current Change
VIN = 8.6V to 21V, IOUT = 500mA,
TJ = +25°C
—
0.3
0.8
mA
IOUT = 5mA to 1A, TJ = +25°C
—
0.08
0.5
PSRR
Ripple Rejection
VIN = 9.5V to 19.5V, f = 120Hz,
IOUT = 500mA
—
65
—
dB
VDROP
Dropout Voltage
∆VOUT = 1%, IOUT = 1A,
TJ = +25°C
—
2
—
V
NO
Output Noise Voltage
f = 10Hz to 100kHz, TA = 25°C
—
10
—
µV/VO
RO
Output Resistance
f = 1kHz
—
10
—
mΩ
ISC
Short Circuit Current
VIN = 35V, TA = +25°C
—
0.2
—
A
IPK
Peak Output Current
VIN = 11V, TJ = +25°C
—
2.2
—
A
∆VOUT/∆T
Output Voltage Temperature
Coefficient
—
—
0.5
—
mV/°C
(∆VOUT/VOUT)/∆T
—
—
80
—
ppm/°C
θJC
Thermal Resistance
TO-220-3/TO-220-3 (2)
—
9
—
°C /W
TO-252-2 (3)/
TO-252-2 (4)/
TO-252-2 (5)
—
16
—
TO-220F-3
—
9
—
AS78XXA
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AS78XXA
Electrical Characteristics (Cont.)
AS7808A (@ VIN = 14V, IOUT = 1A, TJ = -40 to +125°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOUT
Output Voltage
TJ = +25°C
7.84
8
8.16
V
IOUT = 5mA to 1A, VIN = 10.6V to
23V, PD ≤ 15W
7.7
—
8.3
VRLINE
Line Regulation
VIN = 10.6V to 23V,
IOUT = 500mA, TJ = +25°C
—
25
75
mV
VRLOAD
Load Regulation
VIN = 14V, IOUT = 5mA to 1A,
TJ = +25°C
—
25
75
mV
IQ
Quiescent Current
VIN = 14V, IOUT = 0
—
3.2
6
mA
∆IQ
Quiescent Current Change
VIN = 10.6V to 23V, IOUT = 500mA,
TJ = +25°C
—
0.3
0.8
mA
IOUT = 5mA to 1A, TJ = +25°C
—
0.08
0.5
PSRR
Ripple Rejection
VIN = 11.5V to 21.5V, f = 120Hz,
IOUT = 500mA
—
62
—
dB
VDROP
Dropout Voltage
∆VOUT = 1%, IOUT = 1A,
TJ = +25°C
—
2
—
V
NO
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C
—
10
—
µV/VO
RO
Output Resistance
f = 1kHz
—
10
—
mΩ
ISC
Short Circuit Current
VIN = 35V, TA = +25°C
—
0.2
—
A
IPK
Peak Output Current
VIN = 14V, TJ = +25°C
—
2.2
—
A
∆VOUT/∆T
Output Voltage Temperature
Coefficient
—
—
0.64
—
mV/°C
(∆VOUT/VOUT)/∆T
—
—
80
—
ppm/°C
θJC
Thermal Resistance
TO-220-3/TO-220-3 (2)
—
9
—
°C /W
TO-252-2 (3)/
TO-252-2 (4)/
TO-252-2 (5)
—
16
—
TO-220F-3
—
9
—
AS78XXA
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AS78XXA
Electrical Characteristics (Cont.)
AS7809A (@ VIN = 15V, IOUT = 1A, TJ = -40 to +125°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOUT
Output Voltage
TJ = +25°C
8.82
9
9.18
V
IOUT = 5mA to 1A, VIN = 11.5V to
23V, PD ≤ 15W
8.65
—
9.35
VRLINE
Line Regulation
VIN = 11.5V to 23V,
IOUT = 500mA, TJ = +25°C
—
25
90
mV
VRLOAD
Load Regulation
VIN = 14V, IOUT = 5mA to 1A,
TJ = +25°C
—
25
100
mV
IQ
Quiescent Current
VIN = 15V, IOUT = 0
—
3.2
6
mA
∆IQ
Quiescent Current Change
VIN = 11.5V to 23V, IOUT = 500mA,
TJ = +25°C
—
0.3
0.8
mA
IOUT = 5mA to 1A, TJ = +25°C
—
0.08
0.5
PSRR
Ripple Rejection
VIN = 11.5V to 21.5V, f = 120Hz,
IOUT = 500mA
—
61
—
dB
VDROP
Dropout Voltage
∆VOUT = 1%, IOUT = 1A,
TJ = +25°C
—
2
—
V
NO
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C
—
10
—
µV/VO
RO
Output Resistance
f = 1kHz
—
10
—
mΩ
ISC
Short Circuit Current
VIN = 35V, TA = +25°C
—
0.2
—
A
IPK
Peak Output Current
VIN = 15V, TJ = +25°C
—
2.2
—
A
∆VOUT/∆T
Output Voltage Temperature
Coefficient
—
—
0.72
—
mV/°C
(∆VOUT/VOUT)/∆T
—
—
80
—
ppm/°C
θJC
Thermal Resistance
TO-220-3/TO-220-3 (2)
—
9
—
°C /W
TO-252-2 (3)/
TO-252-2 (4)/
TO-252-2 (5)
—
16
—
TO-220F-3
—
9
—
AS78XXA
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AS78XXA
Electrical Characteristics (Cont.)
AS7812A (@ VIN = 19V, IOUT = 1A, TJ = -40 to +125°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOUT
Output Voltage
TJ = +25°C
11.75
12
12.25
V
IOUT = 5mA to 1A, VIN = 14.8V to
27V, PD ≤ 15W
11.5
—
12.5
VRLINE
Line Regulation
VIN = 14.8V to 27V,
IOUT = 500mA, TJ = +25°C
—
25
120
mV
VRLOAD
Load Regulation
VIN = 19V, IOUT = 5mA to 1A,
TJ = +25°C
—
40
120
mV
IQ
Quiescent Current
VIN = 19V, IOUT = 0
—
3.4
6
mA
∆IQ
Quiescent Current Change
VIN = 14.8V to 30V, IOUT = 500mA,
TJ = +25°C
—
0.3
0.8
mA
IOUT = 5mA to 1A, TJ = +25°C
—
0.08
0.5
PSRR
Ripple Rejection
VIN = 15V to 25V, f = 120Hz,
IOUT = 500mA
—
60
—
dB
VDROP
Dropout Voltage
∆VOUT = 1%, IOUT = 1A,
TJ = +25°C
—
2
—
V
NO
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C
—
10
—
µV/VO
RO
Output Resistance
f = 1kHz
—
11
—
mΩ
ISC
Short Circuit Current
VIN = 35V, TA = +25°C
—
0.2
—
A
IPK
Peak Output Current
VIN = 18V, TJ = +25°C
—
2.2
—
A
∆VOUT/∆T
Output Voltage Temperature
Coefficient
—
—
0.96
—
mV/°C
(∆VOUT/VOUT)/∆T
—
—
80
—
ppm/°C
θJC
Thermal Resistance
TO-220-3/TO-220-3 (2)
—
9
—
°C /W
TO-252-2 (3)/
TO-252-2 (4)/
TO-252-2 (5)
—
16
—
TO-220F-3
—
9
—
AS78XXA
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AS78XXA
Electrical Characteristics (Cont.)
AS7815A (@ VIN = 23V, IOUT = 1A, TJ = -40 to +125°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOUT
Output Voltage
TJ = +25°C
14.7
15
15.3
V
IOUT = 5mA to 1A, VIN = 17.9V to
30V, PD ≤ 15W
14.4
—
15.6
VRLINE
Line Regulation
VIN = 17.9V to 30V,
IOUT = 500mA, TJ = +25°C
—
35
150
mV
VRLOAD
Load Regulation
VIN = 23V, IOUT = 5mA to 1A,
TJ = +25°C
—
70
150
mV
IQ
Quiescent Current
VIN = 23V, IOUT = 0
—
3.4
6
mA
∆IQ
Quiescent Current Change
VIN = 17.9V to 30V, IOUT = 500mA,
TJ = +25°C
—
0.3
0.8
mA
IOUT = 5mA to 1A, TJ = +25°C
—
0.08
0.5
PSRR
Ripple Rejection
VIN = 18.5V to 28.5V, f = 120Hz,
IOUT = 500mA
—
58
—
dB
VDROP
Dropout Voltage
∆VOUT = 1%, IOUT = 1A,
TJ = +25°C
—
2
—
V
NO
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C
—
10
—
µV/VO
RO
Output Resistance
f = 1kHz
—
11
—
mΩ
ISC
Short Circuit Current
VIN = 35V, TA = +25°C
—
0.2
—
A
IPK
Peak Output Current
VIN = 21V, TJ = +25°C
—
2.2
—
A
∆VOUT/∆T
Output Voltage Temperature
Coefficient
—
—
1.2
—
mV/°C
(∆VOUT/VOUT)/∆T
—
—
80
—
ppm/°C
θJC
Thermal Resistance
TO-220-3/TO-220-3 (2)
—
9
—
°C /W
TO-252-2 (3)/
TO-252-2 (4)/
TO-252-2 (5)
—
16
—
TO-220F-3
—
9
—
AS78XXA
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AS78XXA
Electrical Characteristics (Cont.)
AS7818A (@ VIN = 27V, IOUT = 1A, TJ = -40 to +125°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOUT
Output Voltage
TJ = +25°C
17.64
18
18.36
V
IOUT = 5mA to 1A, VIN = 21V to
33V, PD ≤ 15W
17.3
—
18.7
VRLINE
Line Regulation
VIN = 21V to 33V,
IOUT = 500mA, TJ = +25°C
—
45
180
mV
VRLOAD
Load Regulation
VIN = 27V, IOUT = 5mA to 1A,
TJ = +25°C
—
85
180
mV
IQ
Quiescent Current
VIN = 27V, IOUT = 0
—
3.6
6
mA
∆IQ
Quiescent Current Change
VIN = 21V to 33V, IOUT = 500mA,
TJ = +25°C
—
0.3
0.8
mA
IOUT = 5mA to 1A, TJ = +25°C
—
0.08
0.5
PSRR
Ripple Rejection
VIN = 22V to 32V, f = 120Hz,
IOUT = 500mA
—
57
—
dB
VDROP
Dropout Voltage
∆VOUT = 1%, IOUT = 1A,
TJ = +25°C
—
2
—
V
NO
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C
—
10
—
µV/VO
RO
Output Resistance
f = 1kHz
—
11
—
mΩ
ISC
Short Circuit Current
VIN = 35V, TA = +25°C
—
0.2
—
A
IPK
Peak Output Current
VIN = 24V, TJ = +25°C
—
2.2
—
A
∆VOUT/∆T
Output Voltage Temperature
Coefficient
—
—
1.44
—
mV/°C
(∆VOUT/VOUT)/∆T
—
—
80
—
ppm/°C
θJC
Thermal Resistance
TO-220-3/TO-220-3 (2)
—
9
—
°C /W
TO-252-2 (3)/
TO-252-2 (4)/
TO-252-2 (5)
—
16
—
TO-220F-3
—
9
—
AS78XXA
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AS78XXA
Performance Characteristics
Peak Output Current vs. Input/Output Differential Voltage Output Voltage vs. Junction Temperature
Output Voltage vs. Output Current Output Voltage vs. Input Voltage
Quiescent Current vs. Junction Temperature Ripple Rejection vs. Frequency
3 6 9 12 15 18 21 24
0.0
0.5
1.0
1.5
2.0
2.5 TJ=-40OC
TJ=25OC
TJ=125OC
Peak Output Current (A)
VIN-VOUT (V)
AS7805A
-40 -20 0 20 40 60 80 100 120
4.850
4.875
4.900
4.925
4.950
4.975
5.000
5.025
5.050
AS7805A
VIN=10V
IOUT=10mA
IOUT=1A
Output Voltage (V)
Junction Temperature (OC)
0200 400 600 800 1000 1200 1400
4.850
4.875
4.900
4.925
4.950
4.975
5.000
5.025
5.050
AS7805A
VIN=10V, TJ=25OC
Output Voltage (V)
Output Current (mA)
810 12 14 16 18 20 22 24
4.850
4.875
4.900
4.925
4.950
4.975
5.000
5.025
5.050
AS7805A
IOUT=500mA, TJ=25OC
IOUT=500mA, TJ=75OC
IOUT=1A, TJ=25OC
Output Voltage (V)
Input Voltage (V)
-40 -20 0 20 40 60 80 100 120
0
1
2
3
4
5
6
AS7805A
VIN=10V, IOUT=0
Quiescent Current (mA)
Junction Temperature (OC)
10 100 1k 10k 100k 1M
0
20
40
60
80
100
Ripple Rejection (dB)
Frequency (Hz)
AS7805A
AS78XXA
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AS78XXA
0.005A
Performance Characteristics (Cont.)
Dropout Voltage vs. Junction Temperature Power Dissipation vs. Junction Temperature
Line Transient Load Transient
(Conditions: IOUT = 500mA, COUT = 0.1µF) (Conditions: VIN = 10V, CIN = 0.33µF, COUT = 0.1µF)
Time (100µs/Div)
Time (40µs/Div)
-40 -20 0 20 40 60 80 100 120
0.0
0.5
1.0
1.5
2.0
2.5
AS7805A
IOUT=100mA
IOUT=500mA
IOUT=1A
Dropout Voltage (V)
Junction Temperature (OC)
-40 -20 0 20 40 60 80 100 120
0
5
10
15
20
25
30
AS7805A
Package: TO-220-3
Heatsink: 60*43mm2
Power Dissipation (W)
Junction Temperature (OC)
AS7805A
AS7805A
25
20
15
10
0
-50
-100
-150
∆VOUT (50mV/Div)
VIN (5V/Div)
IIOUT (1A/Div)
2
1
0
-1
100
0
-100
-200
∆VOUT (100mV/Div)
AS78XXA
Document number: DS36562 Rev. 5 - 2
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AS78XXA
Ordering Information
AS78XXA XX XX - XX
PackingPackage
TR : Tape & Reel
Product Name Output Voltage
T : TO-220-3 E1 : RoHS Compliant
E1/G1
18 : 18V
06 : 6V
08 : 8V
09 : 9V
12 : 12V
15 : 15V
05 : 5V TO-220-3 (2)
TF: TO-220F-3
D: TO-252-2 (3)
TO-252-2 (4)
TO-252-2 (5)
Blank : Tube G1 : RoHS Compliant
and Green
Part Number
Package
(Note 7)
Output
Voltage
(V)
RoHS
Compliant
Lead Free/
Green
Marking ID
Packing
Quantity
Status
(Note 6)
Alternative
AS7805ADTR-
E1
TO-252-2
(3)/(4)/(5)
5
Lead Free
AS7805AD-E1
Tape &
Reel
2500
NRND
AS7805ADTR-
G1
AS7805ADTR-
G1
5
Green
AS7805AD-G1
Tape &
Reel
2500
In
Production
—
AS7805AT-E1
TO-220-3/
(2)
5
Lead Free
AS7805AT-E1
Tube
1000
In
Production
—
AS7805AT-G1
5
Green
AS7805AT-G1
Tube
1000
In
Production
—
AS7805ATF-
E1
TO-220F-
3
5
Lead Free
AS7805ATF-
E1
Tube
1000
In
Production
—
AS7805ATF-
G1
5
Green
AS7805ATF-
G1
Tube
1000
End of Life
AS7805ATF-
E1
AS7806ADTR-
E1
TO-252-2
(3)/(4)/(5)
6
Lead Free
AS7806AD-E1
Tape &
Reel
2500
NRND
AS7806ADTR-
G1
AS7806ADTR-
G1
6
Green
AS7806AD-G1
Tape &
Reel
2500
In
Production
—
AS7806AT-E1
TO-220-3/
(2)
6
Lead Free
AS7806AT-E1
Tube
1000
In
Production
—
AS7806AT-G1
6
Green
AS7806AT-G1
Tube
1000
End of Life
AS7806AT-E1
AS7806ATF-
E1
TO-220F-
3
6
Lead Free
AS7806ATF-
E1
Tube
1000
End of Life
None
AS7806ATF-
G1
6
Green
AS7806ATF-
G1
Tube
1000
End of Life
None
AS7808ADTR-
E1
TO-252-2
(3)/(4)/(5)
8
Lead Free
AS7808AD-E1
Tape &
Reel
2500
End of Life
None
AS7808ADTR-
G1
8
Green
AS7808AD-G1
Tape &
Reel
2500
In
Production
—
AS7808AT-E1
TO-220-3/
(2)
8
Lead Free
AS7808AT-E1
Tube
1000
In
Production
—
AS7808AT-G1
8
Green
AS7808AT-G1
Tube
1000
End of Life
AS7808AT-E1
AS7808ATF-
E1
TO-220F-
3
8
Lead Free
AS7808ATF-
E1
Tube
1000
In
Production
—
AS7808ATF-
G1
8
Green
AS7808ATF-
G1
Tube
1000
End of Life
None
AS7809ADTR-
E1
TO-252-2
(3)/(4)/(5)
9
Lead Free
AS7809AD-E1
Tape &
Reel
2500
NRND
AS78L05ZTR-
G1
AS7809ADTR-
G1
9
Green
AS7809AD-G1
Tape &
Reel
2500
In
Production
—
AS7809AT-E1
TO-220-3/
(2)
9
Lead Free
AS7809AT-E1
Tube
1000
In
Production
—
AS7809AT-G1
9
Green
AS7809AT-G1
Tube
1000
End of Life
AS7809AT-E1
AS7809ATF-
E1
TO-220F-
3
9
Lead Free
AS7809ATF-
E1
Tube
1000
In
Production
—
AS7809ATF-
G1
9
Green
AS7809ATF-
G1
Tube
1000
End of Life
AS7809ATF-
E1
Pb
Lead-Free
Pb
Lead-Free
Pb
Lead-Free
Pb
Lead-Free
Pb
Pb
Pb
Pb
Pb
Pb
Pb
Pb
Green
Green
Green
Green
Green
Green
Green
Green
AS78XXA
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AS78XXA
Ordering Information (Cont.)
Part Number
Package
(Note 7)
Output
Voltage
(V)
RoHS
Compliant
Lead Free/
Green
Marking ID
Packing
Quantity
Status
(Note 6)
Alternative
AS7812ADTR-
E1
TO-252-2
(3)/(4)/(5)
12
Lead Free
AS7812AD-E1
Tape &
Reel
2500
NRND
AS7812ADTR-
G1
AS7812ADTR-
G1
12
Green
AS7812AD-G1
Tape &
Reel
2500
In
Production
—
AS7812AT-E1
TO-220-3/
(2)
12
Lead Free
AS7812AT-E1
Tube
1000
In
Production
—
AS7812AT-G1
12
Green
AS7812AT-G1
Tube
1000
End of Life
AS7812AT-E1
AS7812ATF-
E1
TO-220F-
3
12
Lead Free
AS7812ATF-
E1
Tube
1000
End of Life
None
AS7812ATF-
G1
12
Green
AS7812ATF-
G1
Tube
1000
End of Life
None
AS7815ADTR-
E1
TO-252-2
(3)/(4)/(5)
15
Lead Free
AS7815AD-E1
Tape &
Reel
2500
End of Life
AS7815ADTR-
G1
AS7815ADTR-
G1
15
Green
AS7815AD-G1
Tape &
Reel
2500
In
Production
—
AS7815AT-E1
TO-220-3/
(2)
15
Lead Free
AS7815AT-E1
Tube
1000
In
Production
—
AS7815AT-G1
15
Green
AS7815AT-G1
Tube
1000
In
Production
—
AS7815ATF-
E1
TO-220F-
3
15
Lead Free
AS7815ATF-
E1
Tube
1000
In
Production
—
AS7815ATF-
G1
15
Green
AS7815ATF-
G1
Tube
1000
End of Life
AS7815ATF-
E1
AS7818ADTR-
E1
TO-252-2
(3)/(4)/(5)
18
Lead Free
AS7818AD-E1
Tape &
Reel
2500
NRND
AS7818ADTR-
G1
AS7818ADTR-
G1
18
Green
AS7818AD-G1
Tape &
Reel
2500
In
Production
—
AS7818AT-E1
TO-220-3/
(2)
18
Lead Free
AS7818AT-E1
Tube
1000
End of Life
None
AS7818AT-G1
18
Green
AS7818AT-G1
Tube
1000
End of Life
None
AS7818ATF-
E1
TO-220F-
3
18
Lead Free
AS7818ATF-
E1
Tube
1000
In
Production
—
AS7818ATF-
G1
18
Green
AS7818ATF-
G1
Tube
1000
End of Life
AS7818ATF-
E1
Notes: 6. NRND: Not Recommended for New Design.
7. For packaging details, go to our website at: https://www.diodes.com/design/support/packaging/diodes-packaging/.
Pb
Lead-Free
Pb
Lead-Free
Pb
Lead-Free
Pb
Pb
Pb
Pb
Pb
Pb
Green
Green
Green
Green
Green
Green
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
Marking Information
(1) TO-220-3/TO-220-3 (2)
(Front View)
(2) TO-220F-3 (Front View)
AS78XXA
TF-XX
YWWAXX
First and Second Lines: Logo and Marking ID
(See Ordering Information)
Third Line: Date Code
Y: Year
WW: Work Week of Molding
A: Assembly House Code
XX: Internal Code
AS78XXA
T-XX
YWWAXX
AS78XXA
T-XX
YWWAXX
First and Second Lines: Logo and Marking ID
(See Ordering Information)
Third Line: Date Code
Y: Year
WW: Work Week of Molding
A: Assembly House Code
XX: Internal Code
AS78XXA
T-XX
YWWAXX
AS78XXA
T-XX
YWWAXX
AS78XXA
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© Diodes Incorporated
AS78XXA
Marking Information (Cont.)
(3) TO-252-2 (3)/(4)/(5)
(Top View)
AS78XXA
D-XX
YWWAXX
AS78XXA
D-XX
YWWAXX
AS78XXA
D-XX
YWWAXX
AS78XXA
D-XX
YWWAXX
First and Second Lines: Logo and Marking ID
(See Ordering Information)
Third Line: Date Code
Y: Year
WW: Work Week of Molding
A: Assembly House Code
XX: Internal Code
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
Package Outline Dimensions (All dimensions in mm(inch).)
(1) Package Type: TO-220-3
φ
3.540(0.139)
14.220(0.560)
1.150(0.045)
0.813(0.032)
2.540(0.100) 0.356(0.014)
2.040(0.080)
3°
7°
3.560(0.140)
7°
9.660(0.380)
0.510(0.020)
0.381(0.015)
2.540(0.100)
8.390(0.330)
φ
1.500(0.059)
0.200(0.008)
2.540(0.100) 0.610(0.024)
3.420(0.135)
10.660(0.420)
4.080(0.161) 1.390(0.055)
27.880(1.098)
30.280(1.192)
9.520(0.375)
16.510(0.650)
4.820(0.190)
2.920(0.115)
1.770(0.070)
Option 1
Option 2 Option 3
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
Package Outline Dimensions (Cont. All dimensions in mm(inch).)
(2) Package Type: TO-220-3 (2)
3°
3°
3°
9.800(0.386)
10.200(0.402)
3.560(0.140)
3.640(0.143)
11.100(0.437)
REF
0.700(0.028)
0.900(0.035)
1.170(0.046)
1.390(0.055)
2.540(0.100)
REF 2.540(0.100)
REF
9.600(0.378)
10.600(0.417)
12.600(0.496)
13.600(0.535) 9.000(0.354)
9.400(0.370)
1.200(0.047)
1.400(0.055)
0.600(0.024)
REF
6.300(0.248)
6.700(0.264)
4.400(0.173)
4.600(0.181)
2.200(0.087)
2.500(0.098)
0.400(0.016)
0.600(0.024)
1.620(0.064)
1.820(0.072) 1.200(0.047)
1.400(0.055)
F
3.000(0.118)
REF
AS78XXA
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© Diodes Incorporated
AS78XXA
Package Outline Dimensions (Cont. All dimensions in mm(inch).)
(3) Package Type: TO-220F-3
4.300(0.169)
0.450(0.018)
0.650(0.026)
2.540(0.100)
9.700(0.382)
10.300(0.406)
6.900(0.272)
7.100(0.280)
3.000(0.119)
3.400(0.134)
14.700(0.579)
16.000(0.630)
1.000(0.039)
1.400(0.055)
1.100(0.043)
1.500(0.059)
2.790(0.110)
4.500(0.177)
12.500(0.492)
13.500(0.531)
0.500(0.020)
0.900(0.035)
2.540(0.100)
3.000(0.119)
3.550(0.140)
3.370(0.133)
3.900(0.154)
2.350(0.093)
2.900(0.114)
4.900(0.193)
2.520(0.099)
2.920(0.115)
F
3.190(0.126)
3.250(0.128)
5 5
5
Option 1
Option 2
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
Package Outline Dimensions (Cont. All dimensions in mm(inch).)
(4) Package Type: TO-252-2 (3)
1.29±0.1
2.900REF
1.400(0.055)
1.700(0.067)
0.470(0.019)
0.600(0.024)
5
9
0
8
9.800(0.386)
10.400(0.409)
2.200(0.087)
2.380(0.094)
0.900(0.035)
1.100(0.043)
4.700REF
6.500(0.256)
6.700(0.264)
5.130(0.202)
5.460(0.215)
0.150(0.006)
0.750(0.030)
6.000(0.236)
6.200(0.244)
0.720(0.028)
0.850(0.033)
2.286(0.090)
BSC
0.720(0.028)
0.900(0.035)
0.900(0.035)
1.250(0.049)
1.800REF
8
0
0.600(0.024)
1.000(0.039)
7
3
9
5
5.250REF
Option 1
Option 2
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
Package Outline Dimensions (Cont. All dimensions in mm(inch).)
(5) Package Type: TO-252-2 (4)
5.460(0.215)
4.960(0.195)
6.350(0.250)
6.730(0.265)
1.20±0.05
1.900(0.075)
1.700(0.067)
6.220(0.245)
5.970(0.235)
1.270(0.050)
0.890(0.035)
1.492(0.059)
1.145(0.045)
1.010(0.040)
1.124(0.044)
0.765(0.030)
2.290(0.090)
0.640(0.025)
0.884(0.035) MAX
BSC
10.340(0.407)
9.940(0.391)
0.600(0.024)
0.460(0.018)
2.380(0.094)
2.180(0.086)
4.320(0.170)
MIN
MIN
5.210(0.205)
15
0
330.780(0.031)
0.650(0.026)
0.884(0.035)
0.640(0.025)
0.460(0.018)
0.610(0.024) 0.410(0.016)
0.560(0.022)
DETAIL “A”
2.160(0.085)
MIN
BASE METAL
PLATING
SECTION B-B
0.020(0.001)
0.120(0.005)
2.740(0.108)
1.500(0.059)
REF
1.780(0.070)
0
10 SEATING
PLANE
GAUGE PLANE B
B
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
Package Outline Dimensions (Cont. All dimensions in mm(inch).)
(6) Package Type: TO-252-2 (5)
2.190(0.086)
2.390(0.094)
0.508(0.020) 0°
10°
1.400(0.055)
1.780(0.070)
2.740(0.108)REF 9.400(0.370)
10.400(0.409)
0.000(0.000)
0.130(0.005)
6°
8°
0.450(0.018)
0.580(0.023)
6.000(0.236)
6.200(0.244)
5.210(0.205)
MIN
4.320(0.170)
MIN
6.450(0.254)
6.700(0.264)
5.210(0.205)
5.500(0.217)
0.880(0.035)
1.270(0.050)
0.640(0.025)
1.020(0.040)
0.760(0.030)
1.140(0.045)
2.286(0.090) 0.640(0.025)
0.880(0.035)
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
Suggested Pad Layout
(1) Package Type: TO-252-2 (3)
E1X1
Y2
Y1
Z
X2
G
Dimensions
Z
(mm)/(inch)
X1
(mm)/(inch)
X2 = Y2
(mm)/(inch)
Y1
(mm)/(inch)
G
(mm)/(inch)
E1
(mm)/(inch)
Value
11.600/0.457
1.500/0.059
7.000/0.276
2.500/0.098
2.100/0.083
2.300/0.091
AS78XXA
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© Diodes Incorporated
AS78XXA
Suggested Pad Layout (Cont.)
(2) Package Type: TO-252-2 (4)
E1X1
Y2
Y1
Z
X2
G
Dimensions
Z
(mm)/(inch)
X1
(mm)/(inch)
X2 = Y2
(mm)/(inch)
Y1
(mm)/(inch)
G
(mm)/(inch)
E1
(mm)/(inch)
Value
11.600/0.457
1.500/0.059
7.000/0.276
2.500/0.098
2.100/0.083
2.300/0.091
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
Suggested Pad Layout (Cont.)
(3) Package Type: TO-252-2 (5)
E1X1
Y2
Y1
Z
X2
G
Dimensions
Z
(mm)/(inch)
X1
(mm)/(inch)
X2 = Y2
(mm)/(inch)
Y1
(mm)/(inch)
G
(mm)/(inch)
E1
(mm)/(inch)
Value
11.600/0.457
1.500/0.059
7.000/0.276
2.500/0.098
2.100/0.083
2.300/0.091
AS78XXA
Document number: DS36562 Rev. 5 - 2
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© Diodes Incorporated
AS78XXA
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2018, Diodes Incorporated
www.diodes.com
