LM137   
3-Terminal Adjustable Negative Regulator 		Click link to Download

Features
  • Output voltage adjustable from -1.2V to -37V
  • 1.5A output current guaranteed, -55°C to +150°C
  • Line regulation typically 0.01%/V
  • Load regulation typically 0.3%
  • Excellent thermal regulation, 0.002%/W
  • 77 dB ripple rejection
  • Excellent rejection of thermal transients
  • 50 ppm/°C temperature coefficient
  • Temperature-independent current limit
  • Internal thermal overload protection
  • P+ Product Enhancement tested
  • Standard 3-lead transistor package
  • Output is short circuit protected

LM137 Series Packages and Power Capability

  RatedDesign
DevicePackagePowerLoad
  DissipationCurrent
LM137/337TO-3 (K)20W1.5A
 TO-39 (H)2W0.5A
LM337TO-220 (T)15W1.5A
LM337SOT-223 (MP)2W1A

Description

The LM137/LM337 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of -1.5A over an output voltage range of -1.2V to -37V. These regulators are exceptionally easy to apply, requiring only 2 external resistors to set the output voltage and 1 output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, the LM137 series features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads.

The LM137/LM337 serve a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM137/LM337 are ideal complements to the LM117/LM317 adjustable positive regulators.



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Typical Application
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Connection Diagram
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Typical Performance
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ParametersValues
Output Current 1500 mA
Output Min -37 Volt
Input Min Voltage -40 Volt
Input Max Voltage -4.2 Volt
Adjustable Output Yes
On/Off Pin No
Error Flag No
RegType Linear Regulator
Temperature Min -55 deg C
Temperature Max 150 deg C
Output Max -1.2 Volt

Datasheet
TitleSizeDateOther
Language
LM137/LM337 3-Terminal Adjustable Negative Regulators836
Kbytes		9-Nov-04 
LM137 Mil-Aero (DESC) Datasheet MDLM137-H12 Kbytes 
LM137 Mil-Aero (DESC) Datasheet MDLM137-K12 Kbytes 
LM137 Mil-Aero (JAN) Datasheet MJLM137-H104 Kbytes 
LM137 Mil-Aero (JAN) Datasheet MJLM137-K111 Kbytes 
LM137 Mil-Aero Datasheet MNLM137-K110 Kbytes 
LM137 Mil-Aero Datasheet MNLM137-WG126 Kbytes 
LM137 Mil-Aero Datasheet MNLM137-X197 Kbytes 
LM137 Mil-Aero Datasheet MNLM137A-H15 Kbytes 
LM137 Mil-Aero Datasheet MRLM137-K-RH113 Kbytes 
LM137 Mil-Aero Datasheet MRLM137-X-RH200 Kbytes 


Featured Application Notes
TitleSizeDateOther
Language
AN-285: Application Note 285 An Acoustic Transformer Powered Super‐High Isolation Amplifier172
Kbytes		4-Oct-04 
AN-293: Application Note 293 Control Applications of CMOS DACs385
Kbytes		4-Oct-04 
AN-298: Application Note 298 Isolation Techniques for Signal Conditioning379
Kbytes		2-Oct-02 
AN-225: Application Note 225 IC Temperature Sensor Provides Thermocouple Cold-Junction Compensation89
Kbytes		2-Oct-02 
AN-262: Application Note 262 Applying Dual and Quad FET Op Amps416
Kbytes		2-Oct-02 


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AN-292: Application Note 292 Applications of the LM3524 Pulse-Width-Modulator239
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AN-225: Application Note 225 IC Temperature Sensor Provides Thermocouple Cold-Junction Compensation89
Kbytes		2-Oct-02 
AN-262: Application Note 262 Applying Dual and Quad FET Op Amps416
Kbytes		2-Oct-02 
AN-298: Application Note 298 Isolation Techniques for Signal Conditioning379
Kbytes		2-Oct-02 
AN-D: Application Note D Versatile Monolithic V/Fs can Compute as Well as Convert with High Accuracy248
Kbytes		3-Oct-02 
AN-C: Application Note C V/F Converter ICs Handle Frequency-to-Voltage Needs187
Kbytes		3-Oct-02 
AN-293: Application Note 293 Control Applications of CMOS DACs385
Kbytes		4-Oct-04 
AN-211: Application Note 211 New Op Amp Ideas620
Kbytes		2-Oct-02 
AN-285: Application Note 285 An Acoustic Transformer Powered Super‐High Isolation Amplifier172
Kbytes		4-Oct-04 

Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LM137H/NOPB
LM137H

RoHS

Full production
Lead Time: 6 weeks

 
DistributorRegionQty
ARROWWorldwide63
AVNET-EMWorldwide252
DIGIKEYWorldwide317
FUTUREWorldwide226
$6.60 each at 250+ pcsbox
of
500
LM137H MD8

RoHS

Full production
Lead Time: 6 weeks

 

Contact your distributor
CALLtray
of
N/A
LM137KG MD8

RoHS

Full production
Lead Time: N/A

 

Contact your distributor
CALLtray
of
N/A
7703403XA
(LM137H-SMD)
Lifetime buy
Lead Time: 8 weeks

 

Contact your distributor
$16.40 each at 50+ pcstray
of
20
LM137H/883

RoHS

Full production
Lead Time: 8 weeks

 

Contact your distributor
$16.40 each at 50+ pcstray
of
20
LM137K/883

RoHS

Full production
Lead Time: 15 weeks

 

Contact your distributor
$34.00 each at 50+ pcstray
of
50
JM38510/11803BXA
(JL137BXA)
Full production
Lead Time: 6 weeks

 

Contact your distributor
$20.60 each at 50+ pcstray
of
20
JM38510/11803SXA
(JL137SXA)
Full production
Lead Time: 16 weeks

 

Contact your distributor
CALLtray
of
20
5962P9951701VXA
(LM137HPQMLV)
Full production
Lead Time: 16 weeks

 

Contact your distributor
CALLtray
of
20
JM38510/11804SYA
(JL137SYA)
Full production
Lead Time: 6 weeks

 

Contact your distributor
CALLtray
of
50

Obsolete Versions
Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM137AH/883
LM137H/883
NATIONAL SEMICONDUCTOR
07 Jun 2005
LM137AK/883
NONE
NONE
07 Jun 2001
LM137H-MLS
NONE
NONE
08 Dec 1998
LM137H-MPR
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM137H-SMD
LM137H/883
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM137H MDS
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137H MW8
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVH-MLS
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVH-SMD
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVH MD8
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVH MW8
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVK-SMD
LM137HVK/883
NATIONAL SEMICONDUCTOR
05 Mar 2008
LM137HVK/883
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137K-SMD
JL137BYA
NATIONAL SEMICONDUCTOR
05 Mar 2008
LM137KG MDA
LM137HBK MD8
NATIONAL SEMICONDUCTOR
09 Dec 2005
LM137KG MWA
LM137HBK MD8
NATIONAL SEMICONDUCTOR
09 Dec 2005
LM137KPQMLV
JL137SYA
NATIONAL SEMICONDUCTOR
06 Dec 2005
LM137WG-QMLV
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137WGPQMLV
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137WG/883
LM137H/883
NATIONAL SEMICONDUCTOR
03 Dec 2008

Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHSCAD SymbolsModelsPackage
Marking
Format
LM137H/NOPB
LM137H
TO-3931
1		NA
NA		RoHSDownloadN/A
NSZXYTTE# LM137HP+
LM137H MD8
Unpackaged DieN/A
-
LM137KG MD8
Unpackaged DieN/A
-
7703403XA
(LM137H-SMD)
TO-393RoHSDownloadN/A
NS ZSSXXYYA Q
27014 7703403XA
LM137H/883
TO-3931NARoHSDownloadN/A
NS ZSSXXYYA
LM137H/883 Q
LM137K/883
TO-321NARoHSDownloadN/A
NSZSSXXYYA
LM137K/883
Q
JM38510/11803BXA
(JL137BXA)
TO-393RoHSDownloadN/A
NS ZSSXXYYA 27014 Q
JM38510/11803BXA
JM38510/11803SXA
(JL137SXA)
TO-393RoHSDownloadN/A
NS ZSSXXYYA
JM38510/11803SXA
5962P9951701VXA
(LM137HPQMLV)
TO-393RoHSDownloadN/A
NSZSSXXYYA
9951701VXA LM137HPQV Q
JM38510/11804SYA
(JL137SYA)
TO-32RoHSDownloadN/A
NSZSSXXYYA
JM38510/
11804SYA
27014 Q

Obsolete Versions
Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM137AH/883
LM137H/883
NATIONAL SEMICONDUCTOR
07 Jun 2005
LM137AK/883
NONE
NONE
07 Jun 2001
LM137H-MLS
NONE
NONE
08 Dec 1998
LM137H-MPR
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM137H-SMD
LM137H/883
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM137H MDS
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137H MW8
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVH-MLS
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVH-SMD
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVH MD8
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVH MW8
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137HVK-SMD
LM137HVK/883
NATIONAL SEMICONDUCTOR
05 Mar 2008
LM137HVK/883
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137K-SMD
JL137BYA
NATIONAL SEMICONDUCTOR
05 Mar 2008
LM137KG MDA
LM137HBK MD8
NATIONAL SEMICONDUCTOR
09 Dec 2005
LM137KG MWA
LM137HBK MD8
NATIONAL SEMICONDUCTOR
09 Dec 2005
LM137KPQMLV
JL137SYA
NATIONAL SEMICONDUCTOR
06 Dec 2005
LM137WG-QMLV
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137WGPQMLV
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM137WG/883
LM137H/883
NATIONAL SEMICONDUCTOR
03 Dec 2008

[Information as of 21-Nov-2009]