Pin 1 ADJ.
Pin 2 V
OUT
Case V
IN
K Package TO3
Pin 1 ADJ.
Pin 2 V
OUT
Case V
IN
R Package TO66
Prelim. 7/00
IP137
A
SERIES
IP137A SERIES
IP337
A
SERIES
IP337A SERIES
LM137
A
SERIES
LM137A SERIES
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
1.5 AMP
NEGATIVE ADJUSTABLE
VOLTAGE REGULATOR
V
IO
Input - Output Differential Voltage
Standard
HV Series
I
O
Output Current
P
D
Power Dissipation
T
j
Operating Junction Temperature Range
T
stg
Storage Temperature
40V
50V
Internally limited
Internally limited
See Order Information Table
-65 to 150C
ABSOLUTE MAXIMUM RATINGS
(T
case
= 25C unless otherwise stated)
FEATURES
OUTPUT VOLTAGE RANGE OF:
1.25 TO 40V FOR STANDARD VERSION
1.25 TO 50V FOR HV VERSION
1% OUTPUT VOLTAGE TOLERANCE
0.3% LOAD REGULATION
0.01% / V LINE REGULATION
COMPLETE SERIES OF PROTECTIONS:
CURRENT LIMITING
THERMAL SHUTDOWN
SOA CONTROL
1
2
3
3
1
2
Pin 1 ADJ.
Pin 2 V
IN
Pin 3 V
OUT
Case V
IN
T Package TO220
Pin 1 ADJ.
Pin 2 V
IN
Pin 3 V
OUT
Case V
IN
G Package TO257
1
2
3
1 2 3
Pin 1 ADJ.
Pin 2 V
IN
Pin 3 V
OUT
SG Package SMD1
CERAMIC SURFACE
MOUNT
Pin 1 ADJ.
Pin 2 V
IN
Pin 3 V
OUT
IG Package TO257
(Isolated)
!
1 2 3
IP137A , IP137AHV
IP137 , IP137HV
LM137A , LM137AHV
LM137 , LM137HV
Parameter
Test Conditions
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
I
OUT
= 10mA
I
OUT
= 10mA to I
MAX
V
IN
V
OUT
= 3V to V
MAX
P
P
MAX
T
J
= -55 to 150C
V
IN
V
OUT
= 3V to V
MAX
T
J
= -55 to 150C
I
OUT
= 10mA to I
MAX
V
OUT
5V
V
OUT
5V
I
OUT
= 10mA to I
MAX
V
OUT
5V
T
J
= -55 to 150C
V
OUT
5V
t
p
= 10ms
T
A
= 25C
C
ADJ
= 0
V
OUT
= -10V
C
ADJ
= 10
m
F
f = 120Hz
T
J
= -55 to 150C
T
J
= -55 to 150C
I
OUT
= 10mA to I
MAX
T
J
= -55
V
IN
V
OUT
= 3V to 40V
to 150C
V
IN
V
OUT
= 3V to 50V
(HV SERIES)
V
IN
V
OUT
40V
T
J
= -55 to 150C
V
IN
V
OUT
10V
V
IN
V
OUT
15V
V
IN
V
OUT
= 40V
T
J
= -55 to 150C
V
IN
V
OUT
= 50V
(HV SERIES)
T
J
= -55 to 150C
T
A
= +125C
t = 1000 Hrs
f = 10 Hz to 10 kHz
T
A
= 25C
K Package
R Package
G Package
-1.225
-1.25
-1.275
-1.200
-1.250
-1.300
0.010
0.020
0.020
0.050
15
25
0.3
0.5
20
50
0.3
1
0.002
0.02
60
66
77
65
100
0.5
5
2
5
3
6
2.5
5
1.2
3
1.5
2.2
3.2
0.24
0.4
0.2
0.4
0.8
0.6
0.3
1
0.003
2.3
3
5
7
3
5
-1.238
-1.25
-1.262
-1.220
-1.25
-1.280
0.005
0.010
0.010
0.030
5
25
0.1
0.5
10
50
0.2
1
0.002
0.020
60
66
70
80
65
100
0.2
2
1.0
5
2.0
6
2.5
5
1.2
3
1.5
2.2
3.2
0.24
0.4
1
0.2
0.4
0.8
0.6
1.5
0.3
1
0.003
2.3
3
5
7
3
5
V
REF
Reference Voltage
D
V
OUT
Line Regulation
1
D
I
OUT
D
V
OUT
Load Regulation
1
D
I
OUT
Thermal Regulation
Ripple Rejection
I
ADJ
Adjust Pin Current
D
I
ADJ
Adjust Pin Current
Change
I
MIN
Minimum Load
Current
I
CL
Current Limit
D
V
OUT
Temperature
D
TEMP Stability
D
V
OUT
Long Term Stability
D
TIME
e
n
RMS Output Noise
(% of V
OUT
)
R
q
JC
Thermal Resistance
Junction to Case
Prelim. 7/00
IP137
A
SERIES
IP137A SERIES
IP337
A
SERIES
IP337A SERIES
LM137
A
SERIES
LM137A SERIES
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
V
V
%/V
mV
%
mV
%
%/W
dB
dB
m
A
m
A
mA
A
%
%
%
C/W
1) Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to
heating effects are covered under thermal regulation specifications. Load regulation is measured at a point
1
/
8
" from the bottom of
the package for the TO3 and TO66 packages, at the junction of the wide and narrow portion of the output lead for the SMD1
package, and
1
/
8
" below the base of the package on the output pin of the TO257 package.
2) Test Conditions unless otherwise stated: V
IN
V
OUT
= 5V , I
OUT
= 0.5A , P
MAX
= 20W , I
MAX
= 1.5A
V
MAX
= 40V for standard series , 50V for HV series.
Prelim. 7/00
IP137
A
SERIES
IP137A SERIES
IP337
A
SERIES
IP337A SERIES
LM137
A
SERIES
LM137A SERIES
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
I
OUT
= 10mA
I
OUT
= 10mA to I
MAX
V
IN
V
OUT
= 3V to V
MAX
P
P
MAX
T
J
= 0 to 125C
V
IN
V
OUT
= 3V to V
MAX
T
J
= 0 to 125C
I
OUT
= 10mA to I
MAX
V
OUT
5V
V
OUT
5V
I
OUT
= 10mA to I
MAX
V
OUT
5V
T
J
= 0 to 125C
V
OUT
5V
t
p
= 10ms
T
A
= 25C
C
ADJ
= 0
V
OUT
= 10V
C
ADJ
= 10
m
F
f = 120Hz
T
J
= 0 to 125C
T
J
= 0 to 125C
I
OUT
= 10mA to I
MAX
T
J
= 0
V
IN
V
OUT
= 3V to 40V
to 125C
V
IN
V
OUT
= 3V to 50V
(HV SERIES)
V
IN
V
OUT
40V
T
J
= 0 to 125C
V
IN
V
OUT
10V
V
IN
V
OUT
15V
V
IN
V
OUT
= 40V
T
J
= 0 to 125C
V
IN
V
OUT
= 50V
(HV SERIES)
T
J
= 0 to 125C
t = 1000 Hrs
f = 10 Hz to 10 kHz
T
A
= 25C
K Package
T Package
-1.213
-1.25
-1.287
-1.200
-1.250
-1.300
0.010
0.040
0.020
0.070
15
50
0.3
1
20
70
0.3
1.5
0.003
0.04
60
66
77
65
100
0.5
5
2
5
3
6
2.5
10
1
6
1.5
2.2
3.5
0.15
0.4
0.1
0.4
0.8
0.6
0.3
1
0.003
2.3
3
4
-1.238
-1.25
-1.262
-1.220
-1.25
-1.280
0.005
0.010
0.010
0.030
5
25
0.1
0.5
10
50
0.2
1
0.002
0.020
60
66
70
80
65
100
0.2
2
1.0
5
2.0
6
2.5
5
1.2
3
1.5
2.2
3.5
0.24
0.4
1
0.2
0.4
0.8
0.6
1.5
0.3
1
0.003
2.3
3
4
5
V
REF
Reference Voltage
D
V
OUT
Line Regulation
1
D
I
OUT
D
V
OUT
Load Regulation
1
D
I
OUT
Thermal Regulation
Ripple Rejection
I
ADJ
Adjust Pin Current
D
I
ADJ
Adjust Pin Current
Change
I
MIN
Minimum Load
Current
I
CL
Current Limit
D
V
OUT
Temperature
D
TEMP Stability
D
V
OUT
Long Term Stability
D
TIME
e
n
RMS Output Noise
(% of V
OUT
)
R
q
JC
Thermal Resistance
Junction to Case
IP337HV
IP337AHV
LM337HV
Parameter
Test Conditions
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
V
V
%/V
mV
%
mV
%
%/W
dB
dB
m
A
m
A
mA
A
%
%
%
C/W
1) Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to
heating effects are covered under thermal regulation specifications. Load regulation is measured at a point
1
/
8
" from the bottom of
the package for the TO3 and TO66 packages, at the junction of the wide and narrow portion of the output lead for the SMD1
package, and
1
/
8
" below the base of the package on the output pin of the TO257 package.
2) Test Conditions unless otherwise stated: V
IN
V
OUT
= 5V , I
OUT
= 0.5A , P
MAX
= 20W , I
MAX
= 1.5A
V
MAX
= 40V for standard series , 50V for HV series.
IGPack
Part KPack
RPack
GPack
TPack
SGPack
Temp.
Number
(TO3)
(TO66)
(TO257) (TO220)
SMD1
Range
LM137
-55 to +150C
LM137HV
"
LM137A
"
LM137AHV
"
IP137
-55 to +150C
IP137HV
"
IP137A
"
IP137AHV
"
LM337
0 to 125C
LM337HV
0 to 125C
IP337
0 to 125C
IP337HV
"
IP337A
0 to 125C
IP337AHV
"
Prelim. 7/00
IP137
A
SERIES
IP137A SERIES
IP337
A
SERIES
IP337A SERIES
LM137
A
SERIES
LM137A SERIES
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
R 3
1 . 5 k
1 %
AD J
IP337A
V
IN
V
OU T
R 1
1 k
1 %
R 2
1
F
V
O U T
S O LID
TA NT A LUM
7V
*
V
IN
* R2 =
( )
V
O U T
9.08 x 10
-3
908
C 3
1 0
F
R 2
AD J
IP137A
V
IN
V
OU T
1 N4 0 0 2
R 1
1 20
V
IN
AD J
IP137A
V
IN
V
OU T
1 N4 0 0 2
2
F
C 1
1
F
SO LID
TAN TA LU M
V
O U T1
R EG #1
2
F
R EG #2
1
F
SO LID
TA NTA LU M
O U T2
V
AD J
I P 13 7 A
V
IN
V
OU T
1 N4 0 0 2
2
F
R EG #N
1
F
SO LID
TA NTA LU M
O UT N
V
A D J
IP3 37A
V
IN
V
OU T
D 2
1 N 4 0 0 2
V
O U T
IN
V
R5* *
1 00
1 %
R 3
5 k
1 0
F
V
IN
V
OU T
A D J
IP3 17A
R1* *
1 00
1 %
1 0
F
2. 2
F
2. 2
F
D 1
1 N 4 0 0 2
IN
+V
+V
O U T
R 2
5 k
1 %
R 4
5 k
1 %
AD J
V
IN
V
OU T
()
I
(+)
C 1
1
F
S O LID
TA NA TALU M
I P 3 3 7 A
R
S
0.8
250
R
S
I = 65
A + 1.25 V
R
S
Current Regulator
Dual Tracking Supply
APPLICATIONS INFORMATION
High Stability Regulator
The output stability, load regulation, line regulation, thermal
regulation, temperature drift, long term drift, and noise, can be
improved by a factor of 6.6 over the standard regulator
configuration. This assumes a zener has 20PPM/C maximum
drift and about 10 times lower noise than the regulator.
Multiple Tracking Regulators
In the application shown below, regulator #2 to "N" will track
regulator #1 to within 24mV initially, and to 60mV over all load,
line, and temperature conditions.
If any regulator output is shorted to ground, all other
outputs will drop to -2V. Load regulation of regulators 2 to "N" will
be improved by V
OUT
/ 1.25V compared to a standard regulator,
so regulator #1 should be the one which has the lowest load
current.
* Solid Tantalum
** R1 or R5 may be trimmed slightly to improve tracking.
Order Information
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