Document Number 2831
Issue 2
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
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Pin 1 – ADJ.
Pin 2 – VOUT
Case – VIN
K Package – TO–3 (TO-204AA)
Pin 1 – ADJ.
Pin 2 – VOUT
Case – VIN
R Package – TO–66
(TO-213AA)
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 – TO–220
Pin 1 – ADJ.
Pin 2 – VIN
Pin 3 – VOUT
Case – VIN
G Package – (TO–257AA)
123
1
23
Pin 1 – ADJ.
Pin 2 – VIN
Pin 3 – VOUT
SMD1 (TO276AB)
CERAMIC SURFACE MOUNT
Pin 1 – ADJ.
Pin 2 – VIN
Pin 3 – VOUT
IG Package – (TO–257AA)
(Isolated)
13
2
Pin 1 – ADJ.
Pin 2 – VOUT
Pin 3 – VIN
SMD05 (TO-276AA)
CERAMIC SURFACE MOUNT
13
2
1
23
Pins 4,5 – ADJ.
Pins 6,7,8,9,10,11,12,13 – VOUT
Pins 15,16,17,18,1,2 – VIN
LCC4
CERAMIC SURFACE MOUNT
1516
13
12 14
17
18
1
2
3456
7
11
10
8
9
Document Number 2831
Issue 2
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
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
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 SMD packages, 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.
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 ≥5V
IOUT = 10mA to IMAX VOUT ≤5V
TJ= -55 to 150°CV
OUT ≥5V
tp= 10ms TA= 25°C
CADJ = 0
VOUT = -10V CADJ = 10µF
f = 120Hz TJ= -55 to 150°C
TJ= -55 to 150°CIOUT = 10mA to IMAX
TJ= -55 VIN – VOUT = 3V to 40V
to 150°CV
IN – VOUT = 3V to 50V
(HV SERIES)
VIN – VOUT ≤40V
TJ= -55 to 150°CVIN – VOUT ≤10V
VIN – VOUT ≤15V
VIN – VOUT = 40V
TJ= -55 to 150°CVIN – 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
LCC4 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
13
-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
13
VREF Reference Voltage
∆VOUT Line Regulation 1
∆IOUT
∆VOUT Load Regulation 1
∆IOUT
Thermal Regulation
Ripple Rejection
IADJ Adjust Pin Current
∆IADJ Adjust Pin Current
Change
IMIN Minimum Load
Current
ICL Current Limit
∆VOUT Temperature
∆TEMP Stability
∆VOUT Long Term Stability
∆TIME
enRMS Output Noise
(% of VOUT)
RθJC Thermal Resistance
Junction to Case
V
V
%/V
mV
%
mV
%
%/W
dB
dB
µA
µA
mA
A
%
%
%
°C/W
Document Number 2831
Issue 2
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
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
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 ≥5V
IOUT = 10mA to IMAX VOUT ≤5V
TJ= 0 to 125°CV
OUT ≥5V
tp= 10ms TA= 25°C
CADJ = 0
VOUT = 10V CADJ = 10µF
f = 120Hz TJ= 0 to 125°C
TJ= 0 to 125°CIOUT = 10mA to IMAX
TJ= 0 VIN – VOUT = 3V to 40V
to 125°CV
IN – VOUT = 3V to 50V
(HV SERIES)
VIN – VOUT ≤40V
TJ= 0 to 125°CVIN – VOUT ≤10V
VIN – VOUT ≤15V
VIN – VOUT = 40V
TJ= 0 to 125°CVIN – 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
LCC4 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
413
-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
13
VREF Reference Voltage
∆VOUT Line Regulation 1
∆IOUT
∆VOUT Load Regulation 1
∆IOUT
Thermal Regulation
Ripple Rejection
IADJ Adjust Pin Current
∆IADJ Adjust Pin Current
Change
IMIN Minimum Load
Current
ICL Current Limit
∆VOUT Temperature
∆TEMP Stability
∆VOUT Long Term Stability
∆TIME
enRMS Output Noise
(% of VOUT)
RθJC Thermal Resistance
Junction to Case
IP337A IP337, IP337HV
IP337AHV LM337 , LM337HV
Parameter Test Conditions Min. Typ. Max. Min. Typ. Max. Units
V
V
%/V
mV
%
mV
%
%/W
dB
dB
µA
µA
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 SMD packages, 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.
Document Number 2831
Issue 2
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
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
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
Ω
C3
10
µ
FR2
ADJ
IP137A
V
IN
V
OUT
1N4002 R1
120
Ω
–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
Ω
1%
R3
5k
10
µ
F
V
IN
V
OUT
ADJ
IP317A
R1**
100
Ω
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
Ω
≤
≤
250
Ω
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.
IG–Pack
Part G–Pack K–Pack R–Pack T–Pack Temp.
Number (TO257) SMD1 SMD05 LCC4 (TO3) (TO66) (TO220) Range
LM137 -55 to +150°C
LM137HV ”
LM137A ”
LM137AHV ”
IP137 “
IP137HV ”
IP137A ”
IP137AHV ”
LM337 0 to 125°C
LM337HV ”
IP337 ”
IP337HV ”
IP337A ”
IP337AHV ”
Order Information
