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LP2981A-50 Status: ACTIVE

Single Output LDO, 100mA, Fixed(5.0V), Shutdown, 0.75% Tolerance

      
         
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Datasheet

Download - PDF Icon
  • 100-mA Ultra-Low Dropout Regulator With Shutdown (Rev. F) (lp2981a-50.pdf, 391 KB)
    21 Aug 2008 Download

 LP2981-28 LP2981-30 LP2981-33 LP2981-50 LP2981A-28 LP2981A-30 LP2981A-33 LP2981A-50
Iout(Max)(A)0.1  0.1  0.1  0.1  0.1  0.1  0.1  0.1  
Vdo(Typ)(mV)200  200  200  200  200  200  200  200  
Iq(Typ)(mA)0.6  0.6  0.6  0.6  0.6  0.6  0.6  0.6  
Vin(Min)(V)2.2  2.2  2.2  2.2  2.2  2.2  2.2  2.2  
Vin(Max)(V)16  16  16  16  16  16  16  16  
Vout(Min)(V)2.8  3.0  3.3  5  2.8  3.0  3.3  5  
Vout(Max)(V)2.8  3.0  3.3  5  2.8  3.0  3.3  5  
Accuracy(%)1.25  1.25  1.25  1.25  0.75  0.75  0.75  0.75  
Output Capacitor(uF)4.7  4.7  4.7  4.7  4.7  4.7  4.7  4.7  
Output Capacitor TypeTantalum  Tantalum  Tantalum  Tantalum  Tantalum  Tantalum  Tantalum  Tantalum  
Fixed Output Options(V)2.8  3.0  3.3  5  2.8  3  3.3  5  
Pin/Package5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Regulated Outputs(#)1  1  1  1  1  1  1  1  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • LP2981-50: Single Output LDO, 100mA, Fixed(5.0V), Shutdown, 1.25% Tolerance
  • TPS71550: Single Output LDO, 50mA, Fixed(5.0V), High Input Voltage, Low Quiescent Current
  • LT1009: 2.5-V Integrated Reference Circuit
  • MC34063A: 1.5-A Boost/Buck/Inverting Switching Regulator
  • TLV431B: Low-Voltage Adjustable Precision Shunt Regulator

Product Information

Features

  • Output Tolerance of
    • 0.75% (A Grade)
    • 1.25% (Standard Grade)
  • Ultra-Low Dropout, Typically
    • 200 mV at Full Load of 100 mA
    • 7 mV at 1 mA
  • Wide VIN Range . . . 16 V Max
  • Low IQ . . . 600 µA Typ at Full Load of 100 mA
  • Shutdown Current . . . 0.01 µA Typ
  • Fast Transient Response to Line and Load
  • Overcurrent and Thermal Protection
  • High Peak Current Capability
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
  • Portable Applications
    • Mobile Phones
    • Laptops
    • Personal Digital Assistants (PDAs)
    • Digital Cameras and Camcorders
    • CD and MP3 Players

DESCRIPTION/ORDERING INFORMATION

The LP2981 family of fixed-output, low-dropout regulators offers exceptional, cost-effective performance for both portable and nonportable applications. Available in fixed voltages of
2.8 V, 3 V, 3.3 V, and 5 V, the family has an output tolerance of 0.75% for the A-grade devices (1.25% for the standard grade) and is capable of delivering 100-mA continuous load current. Standard regulator features, such as overcurrent and overtemperature protection, are included.

The LP2981 has features that make the regulator an ideal candidate for a variety of portable applications:

  • Low dropout: A PNP pass element allows a typical dropout of 200 mV at 100-mA load current and 7 mV at 1-mA load.
  • Low quiescent current: The use of a vertical PNP process allows for quiescent currents that are considerably lower than those associated with traditional lateral PNP regulators.
  • Shutdown: A shutdown feature is available, allowing the regulator to consume only 0.01 µA when the ON/OFF pin is pulled low.
  • Small packaging: For the most space-constrained needs, the regulator is available in the SOT-23 package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
LP2981A-50DBVRACTIVE-40 to 1250.36 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
LP2981A-50DBVRG4ACTIVE-40 to 1250.36 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
LP2981A-50DBVTACTIVE-40 to 1250.63 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
LP2981A-50DBVTG4ACTIVE-40 to 1250.63 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* 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

  TI Inventory Status Reported Distributor Inventory
LP2981A-50DBVRAs of 10:01 AM GMT, 09 Jan 2009As of 10:01 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 23 Feb 11 Weeks AmericasArrow >1k
  DigiKey >1k
  AsiaWPI >1k
LP2981A-50DBVRG4As of 10:01 AM GMT, 09 Jan 2009As of 10:01 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 23 Feb 11 Weeks None Reported
View Distributors		   
LP2981A-50DBVTAs of 10:01 AM GMT, 09 Jan 2009As of 10:01 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1500 | 22 Jan 11 Weeks AmericasArrow >1k
 >10k | 23 Feb     
LP2981A-50DBVTG4As of 10:01 AM GMT, 09 Jan 2009As of 10:01 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1500 | 22 Jan 11 Weeks AmericasMouser Electronics >1k
 >10k | 23 Feb     
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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
LP2981A-50DBVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
LP2981A-50DBVRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
LP2981A-50DBVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
LP2981A-50DBVTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* 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

Datasheets

  • 100-mA Ultra-Low Dropout Regulator With Shutdown (Rev. F) (lp2981a-50.pdf, 391 KB)
    21 Aug 2008 Download

Application Notes

View Application Notes for Single Channel LDO

User Guides

View User Guides for Single Channel LDO

More Literature

View More Literature for Single Channel LDO

 Alternative Products - Are similar to LP2981A-50
Customers Who Evaluated This Product Also Evaluated...
Part #Name Comments
LP2981-50Single Output LDO, 100mA, Fixed(5.0V), Shutdown, 1.25% ToleranceTI customers also evaluated this product.
TPS71550Single Output LDO, 50mA, Fixed(5.0V), High Input Voltage, Low Quiescent CurrentTI customers also evaluated this product.
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