LM79M05AHX
LM79M05AJX
1/01
Semelab plc.
Telephone +44(0)1455) 556565. Fax +44(0)1455) 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
5 VOLT NEGATIVE
VOLTAGE REGULATOR
V
I
DC Input Voltage
V
O
= -5V
P
D
Power Dissipation
T
j
Operating Junction Temperature Range
Maximum Junction Temperature
T
stg
Storage Temperature Range
T
L
Lead Temperature (Soldering, 10 sec)
35V
Internally limited
55C to +125C
125C
65C to +150C
300C
MECHANICAL DATA
ABSOLUTE MAXIMUM RATINGS
(Tcase = 25C unless otherwise stated)
0 . 8 9
( 0 . 0 3 5 )
m a x .
1 2 . 7 0
( 0 . 5 0 0 )
m i n .
4 . 1 9 ( 0 . 1 6 5 )
4 . 9 5 ( 0 . 1 9 5 )
8 . 8 9 ( 0 . 3 5 )
9 . 4 0 ( 0 . 3 7 )
7 . 7 5 ( 0 . 3 0 5 )
8 . 5 1 ( 0 . 3 3 5 )
7 . 7 5 ( 0 . 3 0 5 )
8 . 5 1 ( 0 . 3 3 5 )
d i a .
0 . 6 6 ( 0 . 0 2 6 )
1 . 1 4 ( 0 . 0 4 5 )
0 . 7 1 ( 0 . 0 2 8 )
0 . 8 6 ( 0 . 0 3 4 )
2 . 5 4
( 0 . 1 0 0 )
5 . 0 8 ( 0 . 2 0 0 )
t y p .
4 5
!
2.54
(0.100)
0.914
(0.036)
3.68 3 0.508
(0.1 45 0.020)
0.27 9 0 .0 51
(0 .011 0.002)
9.525 0 .635
(0.3 75 0.0 25)
2 to 1 3
R E F
8.
255
0
.
6
3
5
(
0
.
3
25
0.
025
)
1.
52
4 (
0
.
060)
M
a
x
.
0.
3
8
1
(
0
.
0
15
)
M
i
n.
4 .064
(0.1 60)
M in.
5 .08
(0.2 00)
Ma x.
4 .013 0.4 06
(0.1 58 0.016)
10.287 0 .5 08
(0.4 05 0 .0 20)
7.239 0.305
(0.285 0.012)
7.899
(0.311)
1.42 2 0.102
(0 . 056 0.00 4)
* Lead Thickness for tin plate finish only.
Solder dip finish adds 2 to 10 mil thickness to all lead tip dimensions.
0.45 7 0 .102
(0 .0 18 0.00 4)
1
4
8
5
FEATURES
0.01%/V LINE REGULATION
0.3%/A LOAD REGULATION
THERMAL OVERLOAD PROTECTION
SHORT CIRCUIT PROTECTION
SAFE OPERATING AREA PROTECTION
2% OUTPUT VOLTAGE TOLERANCE
H Package - TO-39 Metal
Pin 1 = Ground
Pin 2 = Vout
Pin 3 = Vin
Pin 1 = Ground
Pin 2 = N/C
Pin 3 = N/C
Pin 4 = Vout
Pin 5 = N/C
Pin 6 = Vin
Pin 7 = N/C
Pin 8 = N/C
J Package = 8 Pin Ceramic DIP
DESCRIPTION
T
he LM79M05AH and LM79M05AJ are 5V negative
0.5A Voltage Regulators providing 0.01% per Volt Line
Regulation and 0.3% per amp load regulation.
Protection includes safe operating Area current limiting
and thermal.
- 4.9
- 5
- 5.1
- 4.8
- 5.2
(V
IN
= -8 to -20V)
100
(V
IN
= -7 to -25V)
50
(V
IN
= -8 to -12V)
100
3
0.5
1.3
(V
IN
= -8 to -12V)
100
54
60
(V
IN
= -10)
1.4
2.1
2.5
-0.4
LM79M05AHX
LM79M05AJX
1/01
Semelab plc.
Telephone +44(0)1455) 556565. Fax +44(0)1455) 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
D
V
O
D
V
O
I
d
D
I
Q
V
N
D
V
IN
D
V
O
I
SC
I
PK
I
O
= 100mA
V
IN
= -10V
I
O
= 5mA to 350mA
P
D
P
MAX
T
j
= 55 to +125C
I
O
= 500mA
I
O
= 500mA
I
O
= 5mA to 500mA
V
IN
= -10V
I
O
= 350mA
V
IN
= -10V
I
O
= 5 to 500 mA
V
IN
= -10V
T
j
= 55 to +125C
I
O
= 500mA
T
j
= 55 to +125C
f = 10Hz to 100kHz
f = 120Hz
I
O
= 500mA
T
j
= 55 to +125C
I
O
= 500mA
V
IN
= -10V
V
IN
= -10V
I
O
= 5mA
T
j
= 55 to +125C
Output Voltage*
Line Regulation*
Load Regulation*
Quiescent Current*
Quiescent Current Change*
Output Noise Voltage
Ripple Rejection
Dropout Voltage*
Short Circuit Current*
Peak Output Current*
Average Temperature
Coefficient of Output Voltage*
ELECTRICAL CHARACTERISTICS
(Tj = 25C unless stated)
THERMAL DATA
R
THj-case
Thermal Resistance Junction Case
TO-39 (H Package)
20C / W Typ.
Thermal Resistance Junction Ambient
CERDIP (J Package)
120C / W Typ.
R
THj-amb
Derate above 25C
CERDIP (J Package)
8.4 mW / C
V
mV
mV
mA
mA
mA
m
V
dB
V
A
A
mV
/ C
* Pulse Test:
t
p
10ms ,
d
5%.
All characteristics are measured with a capacitor across the input of 0.22
m
F and a capacitor across the output of 0.1
m
F.
Output Voltage changes due to changes in internal temperature must be taken into account separately.
Although power dissipation is internally limited, these specifications apply for up to 2W for the TO39 package, and
1.05W for the CERDIP (J package).
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