TI Home > Semiconductors > Power Management > Hot Swap and Power Distribution > PCMCIA and USB > USB Power Controllers >

TPS2148 Status: ACTIVE

3.3V LDO + Dual Switch For USB Peripherals, Active-Low Enables


      
         
Alert me about changes<br/>to this product

 TPS2145 TPS2147 TPS2148TPS2149 TPS2155 TPS2158 TPS2159 
Number of FETs2  2  2  2  2  2  2  
Vin(Min)(V)2.9  2.9  2.9  2.9  2.9  2.9  2.9  
Vin(Max)(V)5.5  5.5  5.5  5.5  5.5  5.5  5.5  
Switch EnableL  L  L  L  H  H  H  
rDS(on) per FET, Bus Power(Typ)(mOhms)340  340  340  340  340  340  340  
ApplicationDSP, PDA  DSP, PDA  USB peripheral  USB 2-port hub  DSP, PDA  USB peripheral  USB 2-port hub  
Switch Current Limit, Bus Power(Min)(A)0.2  0.2  0.2  0.2  0.2  0.2  0.2  
LDO Output Range(V)3.3  3.3  3.3  3.3  3.3  3.3  3.3  
LDO Output Current(mA)200  200  200  200  200  200  200  
Ports(Max)2  2  2  2  2  2  2  
Pin/Package14HTSSOP  10MSOP-PowerPAD  8MSOP-PowerPAD  8MSOP-PowerPAD  14HTSSOP  8MSOP-PowerPAD  8MSOP-PowerPAD  
 SamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS2159: 3.3V LDO + Dual Switch For USB Hubs, Active-High Enables

Product Information

Features

  • Complete Power Management Solution for USB Bus-Powered Peripherals
  • 3.3-V 200 mA Low-Dropout Voltage Regulator With Enable
  • 3.3-V 340-m (Typ) High-Side MOSFET
  • 5-V 340-m (Typ) High-Side MOSFET
  • Independent Thermal- and Short-Circuit Protection for LDO and Each Switch
  • 2.9-V to 5.5-V Operating Range
  • CMOS- and TTL-Compatible Enable Inputs
  • 75-uA (Typ) Supply Current
  • Available in 8-Pin MSOP (PowerPAD™)
  • -40°C to 85°C Ambient Temperature Range
  • APPLICATIONS
    • USB Peripherals
      • Digital Cameras
      • Zip Drives
      • Speakers and Headsets

PowerPAD is a trademark of Texas Instruments.

Description

The TPS2148 incorporates two power distribution switches and an LDO in one small package, providing a USB peripheral power management solution that saves up to 60% in board space over typical implementations.

The TPS2148 meets USB 2.0 bus-powered peripheral requirements. An integrated LDO regulates the 5-V bus power down to 3.3 V for the USB controller, and a MOSFET switch that is internally connected to the output of the LDO simplifies meeting the suspend and enumeration current requirements imposed by the USB specification.

A second switch is available to support a downstream port, stage power to a second voltage regulator, or disable power to selected circuitry in power-save modes.

Each power-distribution switch is capable of supplying 200 mA of continuous current, and the independent logic enables are compatible with 5-V logic and 3-V logic.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS2148IDGNACTIVE-40 to 851.25 | 1kuMSOP-PowerPAD (DGN) | 8 View 80 | TUBE Download CAD Format for this Symbol
TPS2148IDGNG4ACTIVE-40 to 851.25 | 1kuMSOP-PowerPAD (DGN) | 8 View 80 | TUBE 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 10:19 AM GMT, 26 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 14 WeeksTPS2148IDGN
AmericasNewark 310
Rochester Electronics >1k
EuropeAvnet-SILICA 98
WorldwideDigiKey 155
TI Lead Time*: 14 WeeksTPS2148IDGNG4
EuropeEBV Elektronik 80
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
TPS2148IDGN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS2148IDGNG4 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 TPS2148 Help

Datasheet

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS2159 3.3V LDO + Dual Switch For USB Hubs, Active-High Enables PCMCIA AND USB-USB POWER CONTROLLERS TI customers also evaluated this product.

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here