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LP2985A-33 Status: ACTIVE

Single Output LDO, 150mA, Fixed(3.3V), 1.0% Tolerance, Low Quiescent Current, Low Noise

      
         
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Datasheet

Download - PDF Icon
  • 150-mA Low-Noise, Low-Dropout Regulator With Shutdown (Rev. L) (lp2985a-33.pdf, 642 KB)
    18 Aug 2008 Download

 LP2985-18 LP2985-25 LP2985-28 LP2985-29 LP2985-33 LP2985-50 LP2985A-18 LP2985A-25 LP2985A-28 LP2985A-29 LP2985A-30 LP2985A-33LP2985A-50 
Iout(Max)(A)0.15  0.15  0.15  0.15  0.15  0.15  0.15  0.15  0.15  0.15  0.15  0.15  0.15  
Vdo(Typ)(mV)280  280  280  280  280  280  280  280  280  280  280  280  280  
Iq(Typ)(mA)0.85  0.85  0.85  0.85  0.85  0.85  0.85  0.85  0.85  0.85  0.85  0.85  0.85  
Vin(Min)(V)2.05  2.5  2.5  2.5  2.5  2.5  2.05  2.5  2.5  2.5  2.5  2.5  2.5  
Vin(Max)(V)16  16  16  16  16  16  16  16  16  16  16  16  16  
Vout(Min)(V)1.8  2.5  2.8  2.9  3.3  5.0  1.8  2.5  2.8  2.9  3.0  3.3  5.0  
Vout(Max)(V)1.8  2.5  2.8  2.9  3.3  5.0  1.8  2.5  2.8  2.9  3.0  3.3  5.0  
Accuracy(%)1.5  1.5  1.5  1.5  1.5  1.5  1  1  1  1  1  1  1  
Output Capacitor(uF)4.7  4.7  4.7  4.7  4.7  4.7  4.7  4.7  4.7  4.7  4.7  4.7  4.7  
Output Capacitor TypeCeramic  Ceramic  Ceramic  Ceramic  Ceramic  Ceramic  Ceramic  Ceramic  Ceramic  Ceramic  Ceramic  Ceramic   
Fixed Output Options(V)1.8  2.5  2.8  2.9  3.3  5.0  1.8  2.5  2.8  2.9  3.0  3.3  5.0  
Pin/Package5SOT-23  5SOT-23  5SOT-23  5SOT-23  5DSBGA,5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  5SOT-23  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Regulated Outputs(#)1  1  1  1  1  1  1  1  1  1  1  1  1  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • LP2985-33: Single Output LDO, 150mA, Fixed(3.3V), 1.5% Tolerance, Low Quiescent Current, Low Noise
  • TPS61040: 28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications
  • TPS60400: 60mA Charge Pump Voltage Inverter with Variable Switching Frequency

Product Information

Features

  • Output Tolerance of
    • 1% (A Grade)
    • 1.5% (Standard Grade)
  • Ultra-Low Dropout, Typically
    • 280 mV at Full Load of 150 mA
    • 7 mV at 1 mA
  • Wide VIN Range . . . 16 V Max
  • Low IQ . . . 850 µA at Full Load at 150 mA
  • Shutdown Current . . . 0.01 µA Typ
  • Low Noise . . . 30 µVRMS With 10-nF Bypass Capacitor
  • Stable With Low-ESR Capacitors, Including Ceramic
  • 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
    • Cellular Phones
    • Palmtop and Laptop Computers
    • Personal Digital Assistants (PDAs)
    • Digital Cameras and Camcorders
    • CD Players
    • MP3 Players

DESCRIPTION/ORDERING INFORMATION

The LP2985 family of fixed-output, low-dropout regulators offers exceptional, cost-effective performance for both portable and nonportable applications. Available in voltages of 1.8 V,
2.5 V, 2.8 V, 2.9 V, 3 V, 3.1 V, 3.3 V, 5 V and 10 V, the family has an output tolerance of 1% for the A version (1.5% for the non-A version) and is capable of delivering 150-mA continuous load current. Standard regulator features, such as overcurrent and overtemperature protection, are included.

The LP2985 has a host of features that makes the regulator an ideal candidate for a variety of portable applications:

  • Low dropout: A PNP pass element allows a typical dropout of 280 mV at 150-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.
  • Low-ESR-capacitor friendly: The regulator is stable with low-ESR capacitors, allowing the use of small, inexpensive, ceramic capacitors in cost-sensitive applications.
  • Low noise: A BYPASS pin allows for low-noise operation, with a typical output noise of
    30 µVRMS, with the use of a 10-nF bypass capacitor.
  • 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
LP2985A-33DBVRACTIVE-40 to 1250.24 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
LP2985A-33DBVRE4ACTIVE-40 to 1250.24 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
LP2985A-33DBVRG4ACTIVE-40 to 1250.24 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
LP2985A-33DBVTACTIVE-40 to 1250.44 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
LP2985A-33DBVTE4ACTIVE-40 to 1250.44 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
LP2985A-33DBVTG4ACTIVE-40 to 1250.44 | 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
LP2985A-33DBVRAs 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 | 31 Mar 12 Weeks AmericasArrow >1k
  DigiKey >1k
  Mouser Electronics >1k
  Rochester Electronics >1k
  AsiaWPI >1k
LP2985A-33DBVRE4As 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 | 31 Mar 12 Weeks None Reported
View Distributors		   
LP2985A-33DBVRG4As 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 | 31 Mar 12 Weeks None Reported
View Distributors		   
LP2985A-33DBVTAs of 10:01 AM GMT, 09 Jan 2009As of 10:01 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2226 | 22 Jan 11 Weeks AmericasMouser Electronics 740
 >10k | 6 Apr Newark 99
  EuropeEBV Elektronik >1k
LP2985A-33DBVTE4As of 10:01 AM GMT, 09 Jan 2009As of 10:01 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2226 | 22 Jan 11 Weeks EuropeFarnell >1k
 >10k | 6 Apr     
LP2985A-33DBVTG4As of 10:01 AM GMT, 09 Jan 2009As of 10:01 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2226 | 22 Jan 11 Weeks AmericasMouser Electronics 26
 >10k | 6 Apr     
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
LP2985A-33DBVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
LP2985A-33DBVRE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
LP2985A-33DBVRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
LP2985A-33DBVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
LP2985A-33DBVTE4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
LP2985A-33DBVTG4 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

  • 150-mA Low-Noise, Low-Dropout Regulator With Shutdown (Rev. L) (lp2985a-33.pdf, 642 KB)
    18 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 LP2985A-33
Customers Who Evaluated This Product Also Evaluated...
Part #Name Comments
LP2985-33Single Output LDO, 150mA, Fixed(3.3V), 1.5% Tolerance, Low Quiescent Current, Low NoiseTI customers also evaluated this product.
 Complementary Products - Can be used with LP2985A-33
Customers Who Evaluated This Product Also Evaluated...
Part #NameProduct FamilyComments
TPS6104028-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED ApplicationsLIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERSTI customers also evaluated this product.
TPS6040060mA Charge Pump Voltage Inverter with Variable Switching FrequencyINDUCTORLESS DC/DC REGULATORS (CHARGE PUMPS)-INVERTING CHARGE PUMP REGULATORSTI customers also evaluated this product.

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