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TPS79433 Status: ACTIVE

Single Output LDO, 250mA, Fixed(3.3V), High PSRR, Low Noise


      
         
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 TPS79401 TPS79418 TPS79425 TPS79428 TPS79430 TPS79433
Iout(Max)(A)0.25  0.25  0.25  0.25  0.25  0.25  
Vdo(Typ)(mV)145  145  145  155  155  145  
Iq(Typ)(mA)0.172  0.172  0.172  0.172  0.172  0.172  
Vin(Min)(V)2.7  2.7  2.7  2.7  2.7  2.7  
Vin(Max)(V)5.5  5.5  5.5  5.5  5.5  5.5  
Vout(Min)(V) 1.8  2.5  2.8  3  3.3  
Vout(Max)(V) 1.8  2.5  2.8  3  3.3  
Vout Adj(Min)(V)1.22       
Vout Adj(Max)(V)5.5       
Accuracy(%)3  3  3  3  3  3  
Output Capacitor(uF)2.2  2.2  2.2  2.2  2.2  2.2  
Output Capacitor TypeCeramic  Ceramic  Ceramic  Ceramic  Ceramic  Ceramic  
Fixed Output Options(V) 1.8  2.5  2.8  3  3.3  
Pin/Package6SOT-223, 8MSOP-PowerPAD  6SOT-223, 8MSOP-PowerPAD  6SOT-223, 8MSOP-PowerPAD  6SOT-223, 8MSOP-PowerPAD  6SOT-223, 8MSOP-PowerPAD  6SOT-223, 8MSOP-PowerPAD  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  
Regulated Outputs(#)1  1  1  1  1  1  
 SamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS55383: 3A, Dual Non-Synchronous Buck Converter w/ High-Side MOSFET and External Compensation, 300 kHz

    • Product Information

    Features

    • 250-mA Low-Dropout Regulator With Enable
    • Available in Fixed and Adjustable (1.2 V to
      5.5 V) Versions
    • High PSRR (60 dB at 10 kHz)
    • Ultralow Noise (32 µVrms, TPS79428)
    • Fast Start-Up Time (50 µs)
    • Stable With a 2.2-µF Ceramic Capacitor
    • Excellent Load/Line Transient Response
    • Very Low Dropout Voltage (155 mV at Full Load)
    • Available in MSOP-8 and SOT223-6 Packages
    • APPLICATIONS
      • RF: VCOs, Receivers, ADCs
      • Audio
      • Bluetooth™, Wireless LAN
      • Cellular and Cordless Telephones
      • Handheld Organizers, PDAs

    PowerPAD is a trademark of Texas Instruments.
    Bluetooth is a trademark of Bluetooth SIG, Inc.
    All trademarks are the property of their respective owners.

    Description

    The TPS794xx family of low-dropout (LDO) linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses in small outline, MSOP-8 PowerPAD™ and SOT223-6 packages. Each device in the family is stable with a small 2.2-µF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 155 mV at 250 mA). Each device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming low quiescent current (170 µA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than µA. The TPS79428 exhibits approximately 32 µVRMS of output voltage noise at 2.8 V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low noise features as well as the fast response time.

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
    TPS79433DCQACTIVE-40 to 850.70 | 1kuSOT-223 (DCQ) | 6 View 78 | TUBE Download CAD Format for this Symbol Purchase Samples
    TPS79433DCQG4ACTIVE-40 to 850.70 | 1kuSOT-223 (DCQ) | 6 View 78 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    TPS79433DCQRACTIVE-40 to 850.65 | 1kuSOT-223 (DCQ) | 6 View 2500 | LARGE T&R Download CAD Format for this Symbol 
    TPS79433DCQRG4ACTIVE-40 to 850.65 | 1kuSOT-223 (DCQ) | 6 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
    TPS79433DGNRACTIVE-40 to 850.65 | 1kuMSOP-PowerPAD (DGN) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
    TPS79433DGNRG4ACTIVE-40 to 850.65 | 1kuMSOP-PowerPAD (DGN) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
    TPS79433DGNTACTIVE-40 to 850.70 | 1kuMSOP-PowerPAD (DGN) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol 
    TPS79433DGNTG4ACTIVE-40 to 850.70 | 1kuMSOP-PowerPAD (DGN) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol 

    * 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 9:52 AM GMT, 06 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 6 WeeksTPS79433DCQ
    AmericasArrow >1k
    Avnet 71
    Rochester Electronics 468
    AsiaWPI 78
    WorldwideDigiKey  Available
    Mouser Electronics 371
    TI Lead Time*: 6 WeeksTPS79433DCQG4
    AmericasAvnet 168
    EuropeEBV Elektronik 16
    WorldwideDigiKey  Available
    Mouser Electronics 346
    TI Lead Time*: 20 WeeksTPS79433DCQR
    AmericasAvnet >1k
    WorldwideDigiKey 270
    Mouser Electronics 349
    TI Lead Time*: 20 WeeksTPS79433DCQRG4
    WorldwideDigiKey  Available
    TI Lead Time*: 20 WeeksTPS79433DGNR
    AmericasAvnet >1k
    WorldwideDigiKey 460
    Mouser Electronics >1k
    TI Lead Time*: 20 WeeksTPS79433DGNRG4
    WorldwideDigiKey  Available
    TI Lead Time*: 4 WeeksTPS79433DGNT
    AmericasRochester Electronics >1k
    AsiaFarnell Asia 322
    WPI 200
    EuropeCompel 368
    Farnell 322
    WorldwideDigiKey >1k
    Mouser Electronics 401
    TI Lead Time*: 4 WeeksTPS79433DGNTG4
    EuropeEBV Elektronik 250
    WorldwideDigiKey  Available
    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
    TPS79433DCQ RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    TPS79433DCQG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    TPS79433DCQR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    TPS79433DCQRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    TPS79433DGNR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    TPS79433DGNRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    TPS79433DGNT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    TPS79433DGNTG4 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

    Most useful technical documents for TPS79433 Help

    Datasheet

    Application Notes

    View Application Notes for Single Channel LDO

    User Guides

    View User Guides for Single Channel LDO

    Tools & Software

    NamePart # Company Tool / Software Type
    DEM-SOT223LDO Compatible with Most Positive Output LDOs in SOT223 (DCQ) PackageDEM-SOT223LDOTexas InstrumentsDevelopment Boards/EVMs

    Customers Who Evaluated This Product Also Evaluated...
    Part # Name Product Family Comments
    TPS55383 3A, Dual Non-Synchronous Buck Converter w/ High-Side MOSFET and External Compensation, 300 kHz DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.

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