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TPS77028 Status: ACTIVE

Single Output LDO, 50mA, Fixed(2.8V), Low Quiescent Current


      
         
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 TPS77001 TPS77012 TPS77015 TPS77018 TPS77025 TPS77027 TPS77028TPS77030 TPS77033 TPS77050 
Iout(Max)(A)0.05  0.05  0.05  0.05  0.05  0.05  0.05  0.05  0.05  0.05  
Vdo(Typ)(mV)35  35  35  35  35  35  60  57  48  35  
Iq(Typ)(mA)0.017  0.017  0.017  0.017  0.017  0.017  0.017  0.017  0.017  0.017  
Vin(Min)(V)2.7  2.7  2.7  2.7  2.7  2.7  2.86  3.057  3.348  5.035  
Vin(Max)(V)10  10  10  10  10  10  10  10  10  10  
Vout(Min)(V) 1.2  1.5  1.8  2.5  2.7  2.8  3  3.3  5  
Vout(Max)(V) 1.2  1.5  1.8  2.5  2.7  2.8  3  3.3  5  
Vout Adj(Min)(V)1.2           
Vout Adj(Max)(V)5.5           
Accuracy(%)3  3  3  3  3  3  3  3  3  3  
Output Capacitor(uF)4.7  4.7  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  Tantalum  Tantalum  
Fixed Output Options(V) 1.2  1.5  1.8  2.5  2.7  2.8  3  3.3  5  
Pin/Package5SOT-23  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  
Regulated Outputs(#)1  1  1  1  1  1  1  1  1  1  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS71501: Single Output LDO, 50mA, Adj(1.2 to 15V), High Input Voltage, Low Quiescent Current
  • TPS2051B: Single, Current-Limited, Power-Distribution Switch
  • TPS61041: 28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications
  • TPS54231: 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™

Product Information

Features

  • 50-mA Low-Dropout Regulator
  • Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and Adjustable Versions
  • Only 17 uA Quiescent Current at 50 mA
  • 1 uA Quiescent Current in Standby Mode
  • Dropout Voltage Typically 35 mV at 50 mA
  • Over Current Limitation
  • �40°C to 125°C Operating Junction Temperature Range
  • 5-Pin SOT-23 (DBV) Package

Description

The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low � typically 35 mV at 50 mA of load current (TPS77050) � and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 uA maximum) and is stable over the entire range of output load current (0 mA to 50 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.

The TPS770xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS770xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.2 V to 5.5 V).

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusPrice | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
TPS77028DBVRACTIVE0.35 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
TPS77028DBVRG4ACTIVE0.35 | 1kuSOT-23 (DBV) | 5 View 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
TPS77028DBVTACTIVE0.39 | 1kuSOT-23 (DBV) | 5 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TPS77028DBVTG4ACTIVE0.39 | 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

Reported Distributor Inventory as of 9:58 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS77028DBVR
AmericasRochester Electronics >1k
AsiaWPI >1k
WorldwideDigiKey >1k
TI Lead Time*: 20 WeeksTPS77028DBVRG4
WorldwideDigiKey  Available
TI Lead Time*: 1 WeekTPS77028DBVT
AmericasAvnet 250
Rochester Electronics >1k
WorldwideDigiKey 1
TI Lead Time*: 1 WeekTPS77028DBVTG4
EuropeEBV Elektronik 125
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
TPS77028DBVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS77028DBVRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS77028DBVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS77028DBVTG4 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 TPS77028 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-SOT23LDO Compatible with Most Positive-Output LDO Regulators in 5- or 6-Lead SOT23 (DBV) PkgDEM-SOT23LDOTexas InstrumentsDevelopment Boards/EVMs
TPS76xxxEVM-125 Universal SOT-23 LDO Evaluation ModuleTPS76XXXEVM-125Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS71501 Single Output LDO, 50mA, Adj(1.2 to 15V), High Input Voltage, Low Quiescent Current LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS2051B Single, Current-Limited, Power-Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS61041 28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS54231 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™ DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS60500 250-mA Adjustable (0.8V-3.3V) High-Efficiency Step-Down Charge Pump INDUCTORLESS DC/DC REGULATORS (CHARGE PUMPS)-STEP-DOWN CHARGE PUMP REGULATORS TI customers also evaluated this product.
TPS61040 28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
UC3906 Linear Lead-Acid Battery Charger BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.

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