Semiconductor
S79xxPIC
Fixed-Negative-Voltage Regulator
Descriptions
This series of fixed-negative-voltage monolithic integrated-circuit voltage regulators is
designed to complement series S7800 in a wide range of applications. These applications
include on-card regulation for elimination of noise and distribution problems associated
with single point regulation. Each of these regulators can deliver up to 1.0 amperes of
output current. The internal current limiting and thermal shutdown features of these
regulators make them essentially immune to overload. In addition to use as fixed-voltage
regulators, these devices can be used with external components to obtain adjustable
output voltages and current and also as the power pass element in precision regulators.
Features
•
Output Current of 1A
•
Thermal Shutdown Protection
•
Short-Circuit Current Limit Protection
•
No External Components
•
Output Transistor Safe Operating Area Protection
Ordering Information
Type NO.
S79xxPIC
Marking
S79□□PI
Package Code
TO-220F-3SL
□□:
Voltage Code (05: -5V, 08: -8V, 09: -9V, 12: -12V, 15: -15V)
Outline Dimensions
9.80~10.20
Φ3.05~3.35
unit:
mm
15.40~15.80
12.20~12.60
9.10~9.30
6.37~6.97
1.07 Min.
0.90 Max.
2.54 Typ.
2.54 Typ.
2.00 Typ.
4.70 Max.
2.70 Max.
KSD-I0T003-001
0.60 Max.
PIN Connections
1. GND
2. Input
3. Output
1
S79xxPIC
Absolute Maximum Ratings
Characteristic
Operating Input Voltage
Power Dissipation (Tc=25℃)
Power Dissipation (without Heatsink)
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Ta=25°C
Symbol
V
IN
P
D
P
D
Topr
T
J
T
STG
Ratings
-35
20.8
2.0
-40 ~ 85
150
-55 ~ 150
Unit
V
W
W
°C
°C
°C
Electrical Characteristics
(T
J
= 0 to 125℃, Vin= -10V, Iout=500mA, unless otherwise specified.)
Characteristic
Symbol
Test Condition
*
S7905PIC
Min.
T
j
=25℃
-5.20
-5.25
-
-
-
-
-
-
-
Typ.
-5.0
-5.0
12.5
4
15
5
1.5
0.15
0.08
125
60
2.0
-0.4
2.1
Max.
-4.80
-4.75
50
15
100
50
2.0
0.5
0.5
-
-
-
-
-
Unit
Output Voltage
**
V
OUT
V
IN
=-25V ~ -7.0V
V
IN
=-12V ~ -8.0V
I
OUT
=5mA ~ 1.0A
I
OUT
=250mA ~ 750mA
V
I
OUT
=5mA ~ 1A, V
IN
=-20V ~ -7.0V
Line Regulation
V
OUT
T
j
=25℃
mV
Load Regulation
V
OUT
I
B
I
B
V
N
RR
V
D
of
T
CVO
I
PK
T
j
=25℃
T
j
=25℃
mV
Bias Current
Bias Current Change
mA
mA
V
IN
= -25V ~ -7.0
V
I
OUT
= 5mA ~ 1A
Output Noise Voltage
Ripple Rejection Ratio
Dropout Voltage
Temperature Coefficient
Output Voltage Drift
Peak Output Current
f=10Hz ~ 100KHz
T
j
=25℃
-
54
-
-
uV
rms
dB
V
mV/
°C
A
f=120
Hz,
V
IN
=-18V ~ -8.0
V
I
OUT
=1A
I
OUT
=5mA
T
j
=25℃
T
j
=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-I0T003-001
2
S79xxPIC
Electrical Characteristics
(T
J
= 0 to 125℃, Vin= -14V, Iout=500mA, unless otherwise specified.)
Characteristic
Symbol
Test Condition
*
S7908PIC
Min.
T
j
=25℃
-8.30
-8.40
-
-
-
-
-
-
-
Typ.
-8.0
-8.0
12.5
4
15
5
1.5
0.15
0.08
200
60
2.0
-0.6
2.1
Max.
-7.70
-7.60
160
80
160
80
2.0
1.0
0.5
-
-
-
-
-
Unit
Output Voltage
**
V
OUT
V
IN
=-25V ~ -10.5V
V
IN
=-17V ~ -11V
I
OUT
=5mA ~ 1.0A
I
OUT
=250mA ~ 750mA
V
I
OUT
=5mA ~ 1A, V
IN
=-23V ~ -10.5V
Line Regulation
V
OUT
T
j
=25℃
mV
Load Regulation
V
OUT
I
B
I
B
V
N
RR
V
D
T
CVO
I
PK
T
j
=25℃
T
j
=25℃
mV
Bias Current
Bias Current Change
mA
mA
V
IN
= -25V ~ -10.5
V
I
OUT
= 5mA ~ 1A
Output Noise Voltage
Ripple Rejection Ratio
Dropout Voltage
Temperature Coefficient of
Output Voltage Drift
Peak Output Current
f=10Hz ~ 100KHz
T
j
=25℃
-
54
-
-
-
uV
rms
dB
V
mV/
°C
A
f=120
Hz,
V
IN
=-21.5V ~ -11.5
V
I
OUT
=1A
I
OUT
=5mA
T
j
=25℃
T
j
=25℃
T
j
=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-I0T003-001
3
S79xxPIC
Electrical Characteristics
(T
J
= 0 to 125℃, Vin= -15V, Iout=500mA, unless otherwise specified.)
Characteristic
Symbol
Test Condition
*
S7909PIC
Min.
T
j
=25℃
-9.30
-9.40
-
-
-
-
-
-
-
Typ.
-9.0
-9.0
10
5
12
4
3
0.1
0.08
175
60
2.0
-0.4
2.1
Max.
-8.70
-8.60
180
90
180
90
6
1.0
0.5
-
-
-
-
-
Unit
Output Voltage
**
V
OUT
V
IN
=-25V ~ -10.5V
V
IN
=-17V ~ -11V
I
OUT
=5mA ~ 1.0A
I
OUT
=250mA ~ 750mA
V
I
OUT
=5mA ~ 1A, V
IN
=-23V ~ -11.5V
Line Regulation
V
OUT
T
j
=25℃
mV
Load Regulation
V
OUT
I
B
I
B
V
N
RR
V
D
T
CVO
I
PK
T
j
=25℃
T
j
=25℃
mV
Bias Current
Bias Current Change
mA
mA
V
IN
= -25V ~ -11.5
V
I
OUT
= 5mA ~ 1A
Output Noise Voltage
Ripple Rejection Ratio
Dropout Voltage
Temperature Coefficient of
Output Voltage Drift
Peak Output Current
f=10Hz ~ 100KHz
T
j
=25℃
-
54
-
-
-
uV
rms
dB
V
mV/
°C
A
f=120
Hz,
V
IN
=-21.5V ~ -11.5
V
I
OUT
=1A
I
OUT
=5mA
T
j
=25℃
T
j
=25℃
T
j
=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-I0T003-001
4
S79xxPIC
Electrical Characteristics
(T
J
= 0 to 125℃, Vin= -19V, Iout=500mA, unless otherwise specified.)
Characteristic
Symbol
Test Condition
*
S7912PIC
Min.
T
j
=25℃
-12.5
-12.6
-
-
-
-
-
-
-
Typ.
-12.0
-12.0
5
3
15
5
2.0
0.04
0.08
300
60
2.0
-0.8
2.1
Max.
-11.5
-11.4
80
30
200
75
3.0
0.5
0.5
-
-
-
-
-
Unit
Output Voltage
**
V
OUT
V
IN
=-30V ~ -14.5V
V
IN
=-22V ~ -16V
I
OUT
=5mA ~ 1.0A
I
OUT
=250mA ~ 750mA
V
I
OUT
=5mA ~ 1A, V
IN
=-27V ~ -14.5V
Line Regulation
V
OUT
T
j
=25℃
mV
Load Regulation
V
OUT
I
B
I
B
V
N
RR
V
D
T
CVO
I
PK
T
j
=25℃
T
j
=25℃
mV
Bias Current
Bias Current Change
mA
mA
V
IN
= -30V ~ -14.5
V
I
OUT
= 5mA ~ 1A
Output Noise Voltage
Ripple Rejection Ratio
Dropout Voltage
Temperature Coefficient of
Output Voltage Drift
Peak Output Current
f=10Hz ~ 100KHz,
T
j
=25℃
-
54
-
-
-
uV
rms
dB
V
mV/
°C
A
f=120
Hz,
V
IN
=-25V ~ -15
V
I
OUT
=1A
I
OUT
=5mA
T
j
=25℃
T
j
=25℃
T
j
=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-I0T003-001
5
Embedded System
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