SN79xxx
3 Terminal 1A Negative Voltage Regulator
Semiconductor
http:// www.auk.co.kr
Description
The SN79xxx series are three-terminal Negative 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 SN79xxx 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
SN79xxD
SN79xxPI
Marking
SN79xxD
SN79xxPI
Package
TO-252-3L
TO-220F-3L
Output Transistor Safe Area Protection.
Ultra High level of ESD [ Built in ESD Protection Cell ]
Equivalent Circuit
Marking Detail Information
[ TO-220F-3L & TO-253-3L PKG Marking ]
AUK( )
G YWW ( )
SN79xxx ( )
AUK Logo
Grade & M Code & Year & Week Code
Device Code
KSD-I0O011-002
Jan. 2011 REV. 02
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1
SN79xxx
Pin Configuration
4
1
2
3
1
2
3
TO-252-3L
1: GND
2: V
IN
3: V
OUT
4: V
IN
TO-220F-3L
1: GND
2: V
IN
3: V
OUT
Product Line-up
Product Name
SN7905D
SN7906D
SN7908D
SN7909D
SN7910D
SN7912D
SN7915D
SN7918D
SN7924D
SN7905PI
SN7906PI
SN7908PI
SN7909PI
SN7910PI
SN7912PI
SN7915PI
SN7918PI
SN7924PI
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-I0O011-002
Jan. 2011 REV. 02
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2
SN79xxx
Absolute Maximum Ratings ( Ta = 25
Parameter
)
Limits
Unit
TO-220F-3L
TO-252-3L
-40.0 ( V
O
=24V )
Symbol
Input Voltage
V
IN
-35.0 ( V
O
=5 to 18V )
V
Power Dissipation
Thermal Resistance Junction to Case
Thermal Resistance Junction to Air
Junction Temperature
Operate Temperature Range
Storage Temperature Range
P
d
R
R
JC
2.0
5
65
150
-40 ~ +125
-55 ~ +150
1.3
5
92
W
°C/W
°C/W
°C
°C
°C
JA
T
J
T
opr
T
stg
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,
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
) ÷
JA
. Exceeding the maximum allowable power dissipation will result in
excessive die temperature, and the regulator will go into thermal shutdown.
KSD-I0O011-002
Jan. 2011 REV. 02
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3
SN79xxx
Electrical characteristics
( V
IN
=-10V, C
IN
= 2.2uF, C
OUT
= 1.0uF, I
OUT
= 500mA, T
J
=0
Characteristic
Symbol
~125
; unless otherwise specified )
SN7905x
Unit
Min.
Typ.
-5.0
-5.0
35
8
10
3.0
3.0
0.1
0.05
54
60
2.0
100
300
2.2
-0.4
Max.
-5.20
V
-4.75
-
-5.25
100
mV
-
-
50
100
mV
-
-
-
50
6.0
1.3
mA
0.5
-
-
-
-
-
-
dB
V
uV/ V
O
mA
A
mV/
°C
mA
Test Condition*
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
ìV
O(
VI)
-4.80
-8.0V
≤
V
IN
≤
-12.0V
5.0mA
≤
I
O
≤
1.5A
Load Regulation
ìV
O(
IL)
T
J
=25
250mA
≤
I
O
≤
750mA
Quiescent Current
I
QC
T
J
=25
-8.0V
≤
V
IN
≤
-25V
Quiescent Current Change
∆I
QC
5.0mA
≤
I
O
≤
1.0A
Ripple Rejection
Dropout Voltage
Output Noise Voltage
Short Circuit Current
Peak Output Current
Temperature coefficient of
Output voltage
RR
V
DROP
V
N
I
SC
I
PK
V
O
/
Temp
-8.0V
≤
V
IN
≤
-18.0V, I
O
=500
f=120Hz
I
O
=1.0A
10Hz
≤
f
≤
100kHz
V
I
=-35V
T
J
=25
I
O
=5.0mA
T
J
=25
T
J
=25
T
A
=25
T
A
=25
-
-
-
-
-
*
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-I0O011-002
Jan. 2011 REV. 02
Downloaded from
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4
SN79xxx
Electrical characteristics
( V
IN
=-11V, C
IN
= 2.2uF, C
OUT
= 1.0uF, I
OUT
= 500mA, T
J
=0 ~125
Characteristic
Symbol
Test Condition*
Min.
T
J
=25
Output Voltage**
V
O
-9.0V
≤
V
IN
≤
-21V
5.0mA
≤
I
O
≤
1.0A, P
D
≤
15W
-8.0V
≤
V
IN
≤
-25.0V
Line Regulation
ìV
O(
VI)
; unless otherwise specified )
SN7906x
Unit
Typ.
-6.0
-6.0
10
5
10
3.0
3.0
0.1
0.05
60
2.0
130
300
2.2
-0.5
Max.
-6.2
V
-5.70
-
-6.3
120
mV
-
-
60
120
mV
-
-
-
-
54
60
6.0
1.3
mA
0.5
-
-
-
-
-
-
dB
V
uV/ V
O
mA
A
mV/
°C
mA
-5.75
-9.0V
≤
V
IN
≤
-13.0V
5.0mA
≤
I
O
≤
1.5A
Load Regulation
ìV
O(
IL)
T
J
=25
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
Short Circuit Current
Peak Output Current
Temperature coefficient of
Output voltage
RR
V
DROP
V
N
I
SC
I
PK
V
O
/
Temp
-9.0V
≤
V
IN
≤
-19.0V
f=120Hz
I
O
=1.0A
10Hz
≤
f
≤
100kHz
V
I
=-35V
T
J
=25
I
O
=5.0mA
T
J
=25
T
J
=25
T
A
=25
T
A
=25
-
-
-
-
-
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-I0O011-002
Jan. 2011 REV. 02
Downloaded from
DatasheetLib.com
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5
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