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LM317M Status: ACTIVE

3/4 Pin 500mA Adjustable Positive Voltage Regulator


      
         
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 LM317 LM317L LM317MLM317MQ 
Vout(Min)(V)1.25  1.2  1.25  1.25  
Vout(Max)(V)37  32  37  37  
Iout(Max)(A)1.5  0.1  0.5  0.5  
Vdo(Max)(V)3  2.5  3  3  
Vin(Min)(V)4.2  3.7  4.2  3  
Vin(Max)(V)40  38  40  40  
Pin/Package2PFM, 3DDPAK/TO-263, 3TO-220, 4SOT-223  3SOT-89, 3TO-92, 8SOIC, 8TSSOP  3PFM, 4SOT-223  4SOT-223  
Approx. Price (US$) 0.36 | 1ku   0.14 | 1ku   0.36 | 1ku   0.34 | 1ku  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • LM317: 3/4 Pin 1.5A Adjustable Positive Voltage Regulator
  • LM317L: 3/8 Pin 100mA Adjustable Positive Regulator
  • LM337: 3 Pin 1.5A Adjustable Negative Voltage Regulator
  • TL431A: Adjustable Precision Shunt Regulator

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Product Information

Features

  • Output Voltage Range Adjustable From 1.25 V to 37 V
  • Output Current Greater Than 500 mA
  • Internal Short-Circuit Current Limiting
  • Thermal-Overload Protection
  • Output Safe-Area Compensation
  • Q Devices Meet Automotive Performance Requirements
  • Customer-Specific Configuration Control Can Be Supported for Q Devices Along With Major-Change Approval

PowerFLEX Is a trademark of Texas Instruments

DESCRIPTION/ORDERING INFORMATION

The LM317M is an adjustable 3-terminal positive-voltage regulator capable of supplying more than 500 mA over an output-voltage range of 1.25 V to 37 V. The LM317M is exceptionally easy to use and requires only two external resistors to set the output voltage. Furthermore, both line and load regulation are better than standard fixed regulators.

In addition to having higher performance than fixed regulators, the device includes on-chip current limiting, thermal-overload protection, and safe-operating-area protection. All overload protection remains fully functional if the ADJUST terminal is disconnected.

Normally, no capacitors are needed unless the device is more than six inches from the input filter capacitors, in which case an input bypass capacitor is needed. An optional output capacitor can be added to improve transient response. The ADJUST terminal can be bypassed to achieve high ripple-rejection ratios, which are difficult to achieve with standard three-terminal regulators.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
LM317MDCYACTIVE0 to 1250.40 | 1kuSOT-223 (DCY) | 4 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
LM317MDCYG3ACTIVE0 to 1250.40 | 1kuSOT-223 (DCY) | 4 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
LM317MDCYRACTIVE0 to 1250.36 | 1kuSOT-223 (DCY) | 4 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
LM317MDCYRG3ACTIVE0 to 1250.36 | 1kuSOT-223 (DCY) | 4 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
LM317MKTPROBSOLETE0 to 1250.36 | 1ku(KTP) | 2    Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
LM317MKTPRG3OBSOLETE0 to 1250.40 | 1ku(KTP) | 2    Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
LM317MKVURG3ACTIVE0 to 1250.40 | 1kuPFM (KVU) | 3  2500 | LARGE T&R  

* 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
TI Lead Time*: 12 WeeksLM317MDCY
AmericasArrow >1k
Newark 619
Rochester Electronics >1k
WorldwideDigiKey  Available
Mouser Electronics 301
TI Lead Time*: 12 WeeksLM317MDCYG3
AmericasArrow 960
Avnet 144
Rochester Electronics 160
EuropeAvnet-SILICA >1k
WorldwideDigiKey  Available
TI Lead Time*: 12 WeeksLM317MDCYR
WorldwideDigiKey >1k
TI Lead Time*: 12 WeeksLM317MDCYRG3
AmericasNewark 691
WorldwideDigiKey  Available
Call**LM317MKTPR
AmericasRochester Electronics >1k
WorldwideDigiKey 321
Call**LM317MKTPRG3
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 12 WeeksLM317MKVURG3
AmericasAvnet >1k
Newark >1k
WorldwideDigiKey 1
Mouser Electronics >1k
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
LM317MDCY RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView
LM317MDCYG3 RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView
LM317MDCYR RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView
LM317MDCYRG3 RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView
LM317MKVURG3 RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-3-260C-168 HRViewView

* 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 LM317M Help

Datasheet

Application Notes

View Application Notes for Standard Voltage Regulators

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
LM317 3/4 Pin 1.5A Adjustable Positive 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.
LM337 3 Pin 1.5A Adjustable Negative Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
TL317 3/8 Pin 100mA Adjustable Positive Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
LM317MQ 4 Pin 500mA Adjustable Positive Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
TL431A Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.

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