Pin 1 – ADJ.
Pin 2 – VOUT
Case – VIN
K Package – TO–3
Pin 1 – ADJ.
Pin 2 – VOUT
Case – VIN
R Package – TO–66
Prelim. 7/00
IP137ASERIES
IP137A SERIES
IP337A SERIES
IP337A SERIES
LM137A 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
VI–O Input - Output Differential Voltage – Standard
– HV Series
IOOutput Current
PDPower Dissipation
TjOperating Junction Temperature Range
Tstg Storage Temperature
40V
50V
Internally limited
Internally limited
See Order Information Table
-65 to 150°C
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C 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
12
3
3
12
Pin 1 – ADJ.
Pin 2 – VIN
Pin 3 – VOUT
Case – VIN
T Package TO220
Pin 1 – ADJ.
Pin 2 – VIN
Pin 3 – VOUT
Case – VIN
G Package TO257
123
1
23
Pin 1 – ADJ.
Pin 2 – VIN
Pin 3 – VOUT
SG Package SMD1
CERAMIC SURFACE
MOUNT
Pin 1 – ADJ.
Pin 2 – VIN
Pin 3 – VOUT
IG Package TO257
(Isolated)
!
1
23
IP137A , IP137AHV IP137 , IP137HV
LM137A , LM137AHV LM137 , LM137HV
Parameter Test Conditions Min. Typ. Max. Min. Typ. Max. Units
IOUT = 10mA
IOUT = 10mA to IMAX
VIN – VOUT = 3V to VMAX
P
£
PMAX TJ= -55 to 150°C
VIN – VOUT = 3V to VMAX
TJ= -55 to 150°C
IOUT = 10mA to IMAX VOUT
£
5V
VOUT
³
5V
IOUT = 10mA to IMAX VOUT
£
5V
TJ= -55 to 150°C VOUT
³
5V
tp= 10ms TA= 25°C
CADJ = 0
VOUT = -10V CADJ = 10
m
F
f = 120Hz TJ= -55 to 150°C
TJ= -55 to 150°C IOUT = 10mA to IMAX
TJ= -55 VIN – VOUT = 3V to 40V
to 150°C VIN – VOUT = 3V to 50V
(HV SERIES)
VIN – VOUT
£
40V
TJ= -55 to 150°C VIN – VOUT
£
10V
VIN – VOUT
£
15V
VIN – VOUT = 40V
TJ= -55 to 150°C VIN – VOUT = 50V
(HV SERIES)
TJ= -55 to 150°C
TA= +125°C
t = 1000 Hrs
f = 10 Hz to 10 kHz
TA= 25°C
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
25
36
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
57
35
-1.238 -1.25 -1.262
-1.220 -1.25 -1.280
0.005 0.010
0.010 0.030
525
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
57
35
VREF Reference Voltage
D
VOUT Line Regulation 1
D
IOUT
D
VOUT Load Regulation 1
D
IOUT
Thermal Regulation
Ripple Rejection
IADJ Adjust Pin Current
D
IADJ Adjust Pin Current
Change
IMIN Minimum Load
Current
ICL Current Limit
D
VOUT Temperature
D
TEMP Stability
D
VOUT Long Term Stability
D
TIME
enRMS Output Noise
(% of VOUT)
R
q
JC Thermal Resistance
Junction to Case
Prelim. 7/00
IP137ASERIES
IP137A SERIES
IP337A SERIES
IP337A SERIES
LM137A 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 TO–3 and TO–66 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 TO–257 package.
2) Test Conditions unless otherwise stated: VIN – VOUT = 5V , IOUT = 0.5A , PMAX = 20W , IMAX = 1.5A
VMAX = 40V for standard series , 50V for HV series.
Prelim. 7/00
IP137ASERIES
IP137A SERIES
IP337A SERIES
IP337A SERIES
LM137A 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
IOUT = 10mA
IOUT = 10mA to IMAX
VIN – VOUT = 3V to VMAX
P
£
PMAX TJ= 0 to 125°C
VIN – VOUT = 3V to VMAX
TJ= 0 to 125°C
IOUT = 10mA to IMAX VOUT
£
5V
VOUT
³
5V
IOUT = 10mA to IMAX VOUT
£
5V
TJ= 0 to 125°C VOUT
³
5V
tp= 10ms TA= 25°C
CADJ = 0
VOUT = 10V CADJ = 10
m
F
f = 120Hz TJ= 0 to 125°C
TJ= 0 to 125°C IOUT = 10mA to IMAX
TJ= 0 VIN – VOUT = 3V to 40V
to 125°C VIN – VOUT = 3V to 50V
(HV SERIES)
VIN – VOUT
£
40V
TJ= 0 to 125°C VIN – VOUT
£
10V
VIN – VOUT
£
15V
VIN – VOUT = 40V
TJ= 0 to 125°C VIN – VOUT = 50V
(HV SERIES)
TJ= 0 to 125°C
t = 1000 Hrs
f = 10 Hz to 10 kHz
TA= 25°C
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
25
36
2.5 10
16
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
525
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
45
VREF Reference Voltage
D
VOUT Line Regulation 1
D
IOUT
D
VOUT Load Regulation 1
D
IOUT
Thermal Regulation
Ripple Rejection
IADJ Adjust Pin Current
D
IADJ Adjust Pin Current
Change
IMIN Minimum Load
Current
ICL Current Limit
D
VOUT Temperature
D
TEMP Stability
D
VOUT Long Term Stability
D
TIME
enRMS Output Noise
(% of VOUT)
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 TO–3 and TO–66 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 TO–257 package.
2) Test Conditions unless otherwise stated: VIN – VOUT = 5V , IOUT = 0.5A , PMAX = 20W , IMAX = 1.5A
VMAX = 40V for standard series , 50V for HV series.
IG–Pack
Part K–Pack R–Pack G–Pack T–Pack SG–Pack Temp.
Number (TO–3) (TO–66) (TO–257) (TO–220) SMD1 Range
LM137 ✔✔✔ -55 to +150°C
LM137HV ✔✔✔
LM137A ✔✔✔
LM137AHV ✔✔✔
IP137 ✔✔✔ -55 to +150°C
IP137HV ✔✔✔
IP137A ✔✔✔
IP137AHV ✔✔✔
LM337 ✔✔0 to 125°C
LM337HV ✔✔0 to 125°C
IP337 ✔✔0 to 125°C
IP337HV ✔✔
IP337A ✔✔0 to 125°C
IP337AHV ✔✔
Prelim. 7/00
IP137ASERIES
IP137A SERIES
IP337A SERIES
IP337A SERIES
LM137A 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
R3
1.5k
1%
ADJ
IP337A
V
IN
V
OUT
R1
1k
1%
R2
1
µ
F
V
OUT
SOLID
TANTALUM
7V
*
V
IN
* R2 = ( )V
OUT
9.08 x 10
-3
908
C3
10
µ
FR2
ADJ
IP137A
V
IN
V
OUT
1N4002 R1
120
V
IN
ADJ
IP137A
V
IN
V
OUT
1N4002
2
µ
FC1
1
µ
F
SOLID
TANTALUM
V
OUT1
REG #1
2
µ
F
REG #2
1
µ
F
SOLID
TANTALUM
OUT2
V
ADJ
IP137A
V
IN
V
OUT
1N4002
2
µ
F
REG #N
1
µ
F
SOLID
TANTALUM
OUT N
V
ADJ
IP337A
V
IN
V
OUT
D2
1N4002
V
OUTIN
V
R5**
100
1%
R3
5k
10
µ
F
V
IN
V
OUT
ADJ
IP317A
R1**
100
1%
10
µ
F
2.2
µ
F
2.2
µ
F
D1
1N4002
IN
+V +V
OUT
R2
5k
1%
R4
5k
1%
ADJ
V
IN
V
OUT
()
I
(+)
C1
1
µ
F
SOLID
TANATALUM
IP337A
R
S
0.8
250
R
S
I = 65
µ
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 VOUT / 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