SN78xxx
3 Terminal 1A Positive Voltage Regulator
Semiconductor
http:// www.auk.co.kr
Description
The SN78xxx series are three-terminal positive regulators providing
over 1A output current with internal current limiting, thermal
shutdown and safe area protection. These regulators are useful in
a wide range of applications. Although they are just fixed voltage
regulators, the SN78xxx series can be used with external components to
obtain adjustable voltages and Currents.
TO-252-3L
Application
◈
Consumer and personal electronics
◈
SMPS post-regulator / dc-to-dc modules
◈
High-efficiency linear power supplies
Features and Benefits
TO-220F-3L
◈
Output Current up to 1.0A
◈
Output Voltage : 5, 6, 8, 9, 10, 12, 15, 18, 24V
◈
Built in OVP, CLP circuit.
◈
Built in TSD Protection.
ORDERING INFORMATION
Product
SN78xxD
SN78xxPI
Marking
SN78xxD
SN78xxPI
Package
TO-252-3L
TO-220F-3L
◈
Output Transistor Safe Area Protection.
◈
Ultra High level of ESD [ Built in ESD Protection Cell ]
MM : 500V / HBM 5KV
Equivalent Circuit
V
IN
1
Current
Source
SOA
Protection
▲
Marking Detail Information
[ TO-220F-3L & TO-253-3L PKG Marking ]
AUK(①)
G△YWW (②)
SN78xxx (③)
①
AUK Logo
②
Grade & M Code & Year & Week Code
③
Device Code
Starting
Circuit
Reference
Voltage
Error
Amp
V
OUT
3
R1
Thermal
Protection
R2
GND
2
KSD-I0O008-004
Jan. 2010 REV. 04
1
SN78xxx
◈
Pin Configuration
4
1
2
3
1
2
3
TO-252-3L
1: V
IN
2: GND
3: V
OUT
4: GND
TO-220F-3L
1: V
IN
2: GND
3: V
OUT
◈
Product Line-up
Product Name
SN7805D
SN7806D
SN7808D
SN7809D
SN7810D
SN7812D
SN7815D
SN7818D
SN7824D
SN7805PI
SN7806PI
SN7808PI
SN7809PI
SN7810PI
SN7812PI
SN7815PI
SN7818PI
SN7824PI
V
OUT
5.0V
6.0V
8.0V
9.0V
10V
12V
15V
18V
24V
5.0V
6.0V
8.0V
9.0V
10V
12V
15V
18V
24V
Operating
Temperature
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
-40~125℃
Package
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
KSD-I0O008-004
Jan. 2010 REV. 04
2
SN78xxx
◈
Absolute Maximum Ratings ( Ta = 25℃ )
Parameter
Symbol
Limits
TO-220F-3L
TO-252-3L
Unit
40.0 ( V
O
=24V )
Input Voltage
V
IN
35.0 ( V
O
=5 to 18V )
Power Dissipation
Thermal Resistance Junction to Case
Thermal Resistance Junction to Air
Junction Temperature
Operate Temperature Range
Storage Temperature Range
P
d
R
ΘJC
R
ΘJA
T
J
T
opr
T
stg
2.0
5
65
150
-40 ~ +125
-55 ~ +150
1.3
5
92
W
°C/W
°C/W
°C
°C
°C
V
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical
specifications do not apply when operating the device outside of its operating ratings. The maximum
allowable power dissipation is a function of the maximum junction temperature, T
J(max)
,
the junction-to-ambient thermal resistance,
θ
JA
, and the ambient temperature, TA.
The maximum allowable power dissipation at any ambient temperature is calculated using:
PD(max) = (T
J(max)
– T
A
) ÷
θ
JA
. Exceeding the maximum allowable power dissipation will result in
excessive die temperature, and the regulator will go into thermal shutdown.
KSD-I0O008-004
Jan. 2010 REV. 04
3
SN78xxx
◈
Electrical characteristics
( V
IN
=10V, C
IN
= 0.33uF, C
OUT
= 0.1 uF, I
OUT
= 500mA, T
J
=0℃~125℃ ; unless otherwise specified )
SN7805x
Characteristic
Symbol
Test Condition*
Min.
T
J
=25℃
Output Voltage**
V
O
7.0V
≤
V
IN
≤
20.0V
5.0mA
≤
I
O
≤
1.0A, P
D
≤
15W
7.0V
≤
V
IN
≤
25.0V
Line Regulation
V
O(
△
VI)
8.0V
≤
V
IN
≤
12.0V
5.0mA
≤
I
O
≤
1.5A
Load Regulation
V
O(
△
IL)
250mA
≤
I
O
≤
750mA
Quiescent Current
I
QC
T
J
=25℃
7.0V
≤
V
IN
≤
25V
Quiescent Current Change
I
QC
5.0mA
≤
I
O
≤
1.0A
Ripple Rejection
Dropout Voltage
Output Noise Voltage
Output Resistance
Short Circuit Current
Peak Output Current
Temperature coefficient of
Output voltage
RR
V
DROP
V
N
r
O
I
SC
I
PK
8.0V
≤
V
IN
≤
18.0V
f=120Hz
I
O
=1.0A
10Hz
≤
f
≤
100kHz
f=1.0kHz
V
I
=35V
T
J
=25℃
I
O
=5.0mA
T
A
=25℃
T
J
=25℃
T
A
=25℃
62
-
-
-
-
-
-
0.03
73
2.0
42
15
250
2.2
-0.8
0.5
-
-
-
-
-
-
-
dB
V
uV/ V
O
mΩ
mA
A
mV/
°C
T
J
=25℃
-
-
-
4.0
3.2
0.3
50
8.0
1.3
mA
mA
T
J
=25℃
-
-
1.6
9.0
50
100
mV
4.80
4.75
-
Typ.
5.00
5.00
4.0
Max.
5.20
V
5.25
100
mV
Unit
△
V
O
/
△
Temp
Pulse testing techniques are used to maintain the junction temperature as close to the ambient
temperature as possible. Thermal effects must be taken into separately.
** This specification applies only for dc power dissipation permitted by absolute maximum ratings.
*
KSD-I0O008-004
Jan. 2010 REV. 04
4
SN78xxx
◈
Electrical characteristics
( V
IN
=11V, C
IN
= 0.33uF, C
OUT
= 0.1 uF, I
OUT
= 500mA, T
J
=0
℃
~125
℃
; unless otherwise specified )
SN7806x
Characteristic
Symbol
Test Condition*
Min.
T
J
=25℃
Output Voltage**
V
O
8.0V
≤
V
IN
≤
21V
5.0mA
≤
I
O
≤
1.0A, P
D
≤
15W
8.0V
≤
V
IN
≤
25.0V
Line Regulation
V
O(
△
VI)
9.0V
≤
V
IN
≤
13.0V
5.0mA
≤
I
O
≤
1.5A
Load Regulation
V
O(
△
IL)
250mA
≤
I
O
≤
750mA
Quiescent Current
I
QC
T
J
=25℃
8.0V
≤
V
IN
≤
25.0V
Quiescent Current Change
I
QC
5.0mA
≤
I
O
≤
1.0A
Ripple Rejection
Dropout Voltage
Output Noise Voltage
Output Resistance
Short Circuit Current
Peak Output Current
Temperature coefficient of
Output voltage
RR
V
DROP
V
N
r
O
I
SC
I
PK
9.0V
≤
V
IN
≤
19.0V
f=120Hz
I
O
=1.0A
10Hz
≤
f
≤
100kHz
f=1.0kHz
V
I
=35V
T
J
=25℃
I
O
=5.0mA
T
A
=25℃
T
J
=25℃
T
A
=25℃
-
59
-
-
-
-
-
-
-
75
2.0
45
19
250
2.2
-0.8
0.5
-
-
-
-
-
-
-
dB
V
uV/ V
O
mΩ
mA
A
mV/
°C
T
J
=25℃
-
-
-
3.0
5.0
-
60
8.0
1.3
mA
mA
T
J
=25℃
-
-
1.5
9.0
60
120
mV
5.75
5.70
-
Typ.
6.00
6.00
5.0
Max.
6.25
V
6.30
120
mV
Unit
△
V
O
/
△
Temp
Pulse testing techniques are used to maintain the junction temperature as close to the ambient
temperature as possible. Thermal effects must be taken into separately.
** This specification applies only for dc power dissipation permitted by absolute maximum ratings.
*
KSD-I0O008-004
Jan. 2010 REV. 04
5
嵌入式系统
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