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LM317MQ Status: ACTIVE

4 Pin 500mA Adjustable Positive Voltage Regulator


      
         
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Datasheet

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 LM317M LM317MQ
Vout(Min)(V)1.25  1.25  
Vout(Max)(V)37  37  
Iout(Max)(A)0.5  0.5  
Vdo(Max)(V)3  3  
Vin(Min)(V)4.2  3  
Vin(Max)(V)40  40  
Pin/Package3PFM, 4SOT-223  4SOT-223  
Approx. Price (US$) 0.36 | 1ku   0.34 | 1ku  
 SamplesSamples
 InventoryInventory

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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
LM317MQDCYRACTIVE-40 to 1250.34 | 1kuSOT-223 (DCY) | 4 View 2500 Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
LM317MQDCYRG4ACTIVE-40 to 1250.34 | 1kuSOT-223 (DCY) | 4 View 2500 Download CAD Format for this Symbol Download CAD Format for this Footprint
LM317MQKTPROBSOLETE-40 to 125 (KTP) | 2    Download CAD Format for this Symbol Download CAD Format for this FootprintNot 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 11:57 AM GMT, 26 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksLM317MQDCYR
AmericasArrow >1k
Newark >1k
Rochester Electronics >1k
TI Lead Time*: 20 WeeksLM317MQDCYRG4
AmericasArrow >1k
Avnet >1k
Rochester Electronics >1k
AsiaWPI >1k
Call**LM317MQKTPR
AmericasRochester 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
LM317MQDCYR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
LM317MQDCYRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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 LM317MQ Help

Datasheet

Application Notes

View Application Notes for Standard Voltage Regulators

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LM317L 3/8 Pin 100mA Adjustable Positive Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
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