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TPS2151 Status: ACTIVE

Adjustable LDO Plus 5V Switch with Dual Current Limit for High Power USB Peripherals


      
         
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 TPS2140 TPS2141 TPS2150 TPS2151
Number of FETs1  1  1  1  
Vin(Min)(V)2.7  4.1  2.7  4.1  
Vin(Max)(V)5.5  5.5  5.5  5.5  
Switch EnableL  L  H  H  
rDS(on) per FET, Bus Power(Typ)(mOhms) 40  40  40  
ApplicationUSB high power peripheral, DSP  USB high power peripheral  USB peripheral, DSP  USB peripheral  
Switch Current Limit, Bus Power(Min)(A)0.8  0.8  0.8  0.8  
LDO Output Range(V)0.9 to 3.3  0.9 to 3.3  0.9 to 3.3  0.9 to 3.3  
LDO Output Current(mA)250  250  250  250  
Ports(Max)1  1  1  1  
Pin/Package14HTSSOP  14HTSSOP  14HTSSOP  14HTSSOP  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

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    • Product Information

    Features

    • Complete Power Management Solution for USB High-Power Peripherals
    • 250 mA Low-Dropout Regulator (LDO) With Enable and 325 mA (Typ) Current Limit
    • LDO Supports 2.7 V to 5.5 V VIN and 0.9 V to 3.3 V Adjustable VOUT
    • 40 m (Typ) High-Side MOSFET With Dual Current Limit
    • Undervoltage Lockout and Power Good for LDO and Switch
    • CMOS- and TTL-Compatible Enable Inputs
    • 85 µA (Typ) Supply Current
    • 5 µA (Typ) Standby Supply Current
    • Available in 14-Pin HTSSOP (PowerPAD™)
    • –40°C to 85°C Ambient Temperature Range
    • Alternative to TPS2148/58 3.3-V LDO With 3.3-V Switch and 5-V Switch
    • APPLICATIONS
      • High-Power USB™ Peripherals
        • ADSL Modems
        • Digital Still and PC Cameras
        • Zip Drives
        • Speakers
      • DSP Sequencing

    PowerPAD is a trademark of Texas Instruments.
    USB is a trademark of Universal Serial Bus Association.

    Description

    The TPS2140/41/50/51 is a USB 1.0 and 2.0 Specification-compatible IC containing a dual-current-limiting power switch and an adjustable low dropout regulator (LDO). Both the switch and LDO limit inrush current by controlling the turnon slew rate. The unique dual-current-limiting feature of the switch allows USB peripherals to utilize high-value capacitance at the output of the switch, while keeping the inrush current low. During turn on, the switch limits the current delivered to the capacitive load to less than 100 mA. When the output voltage from the switch reaches about 93% of the input voltage, the switch power good output goes high, and the switch current limit increases to 800mA (minimum), at which point higher current loads can be turned on. The higher current limit provides short circuit protection while allowing the peripheral to draw maximum current from the USB bus.

    The switch and LDO function independently, providing flexibility in DSP applications requiring separate core and I/O voltages. For example, in a DSP application operating from a 3.3-V rail, the LDO can supply the DSP core voltage down to 0.9 V, while the switch powers the 3.3-V (typical) DSP I/O supply. If supply sequencing is required, the LDO power good output can be used to enable the switch.

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
    TPS2151IPWPACTIVE-40 to 851.55 | 1kuHTSSOP (PWP) | 14 View 90 | TUBE Download CAD Format for this Symbol
    TPS2151IPWPG4ACTIVE-40 to 851.55 | 1kuHTSSOP (PWP) | 14 View 90 | TUBE Download CAD Format for this Symbol
    TPS2151IPWPRACTIVE-40 to 851.40 | 1kuHTSSOP (PWP) | 14 View 2000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
    TPS2151IPWPRG4ACTIVE-40 to 851.40 | 1kuHTSSOP (PWP) | 14 View 2000 | LARGE T&R Download CAD Format for this SymbolPurchase 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 10:13 AM GMT, 08 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 8 WeeksTPS2151IPWP
    AsiaWPI 73
    TI Lead Time*: 8 WeeksTPS2151IPWPG4
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksTPS2151IPWPR
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksTPS2151IPWPRG4
    None Reported
    View Distributors
    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
    TPS2151IPWP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    TPS2151IPWPG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    TPS2151IPWPR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    TPS2151IPWPRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

    * 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 TPS2151 Help

    Datasheet

    Application Notes

    View Application Notes for USB Power Controllers

    User Guides

    View User Guides for USB Power Controllers

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