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LM237 Status: ACTIVE

3 Pin 1.5A Adjustable Negative Voltage Regulator


      
         
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Datasheet

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 LM237
Vout(Min)(V)-1.2  
Vout(Max)(V)-37  
Iout(Max)(A)1.5  
Vdo(Max)(V)3  
Vin(Min)(V)-4.2  
Vin(Max)(V)-40  
Pin/Package3TO-220  
Approx. Price (US$) 0.90 | 1ku  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

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Product Information

Features

  • Output Voltage Range Adjustable From –1.2 V to –37 V
  • Output Current Capability of 1.5 A Max
  • Input Regulation Typically 0.01% Per Input-Voltage Change
  • Output Regulation Typically 0.3%
  • Peak Output Current Constant Over Temperature Range of Regulator
  • Ripple Rejection Typically 77 dB
  • Direct Replacement for Industry-Standard LM237 and LM337

PowerFLEX is a trademark of Texas Instruments.

DESCRIPTION/ORDERING INFORMATION

The LM237 and LM337 are adjustable 3-terminal negative-voltage regulators capable of supplying in excess of –1.5 A over an output voltage range of –1.2 V to –37 V. They are exceptionally easy to use, requiring only two external resistors to set the output voltage and one output capacitor for frequency compensation. The current design has been optimized for excellent regulation and low thermal transients. In addition, the LM237 and LM337 feature internal current limiting, thermal shutdown, and safe-area compensation, making them virtually immune to failure by overloads.

The LM237 and LM337 serve a wide variety of applications, including local on-card regulation, programmable output-voltage regulation, and precision current regulation.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
LM237KCOBSOLETE-25 to 1500.90 | 1kuTO-220 (KC) | 3 View   Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
LM237KCE3OBSOLETE-25 to 1500.90 | 1kuTO-220 (KC) | 3 View    Not Available
LM237KCSE3ACTIVE-25 to 1500.90 | 1kuTO-220 (KCS) | 3  50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
LM237KTEROBSOLETE-25 to 1501.98 | 1ku(KTE) | 3     Not Available

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:54 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
Call**LM237KC
AmericasRochester Electronics 173
AsiaFarnell Asia 37
EuropeFarnell 35
Call**LM237KCE3
AmericasRochester Electronics 450
TI Lead Time*: 12 WeeksLM237KCSE3
AsiaWPI 51
EuropeAvnet-SILICA 350
WorldwideDigiKey >1k
Mouser Electronics 88
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
LM237KCSE3 RoHS Compliant Pb-Free (RoHS) CU SN N/A for Pkg TypeViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for LM237 Help

Datasheet

Application Notes

View Application Notes for Standard Voltage Regulators

Selection Guides

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
LM337 3 Pin 1.5A Adjustable Negative Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
LM317 3/4 Pin 1.5A Adjustable Positive Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
LM317M 3/4 Pin 500mA Adjustable Positive Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
UA79M05 3 Pin 500mA Fixed (-5V) Negative Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
LM317L 3/8 Pin 100mA Adjustable Positive Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.

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