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TPS22949A Status: ACTIVE

Current Limited Load Switch With Low Noise Regulation Capability and Inrush Current Limit


      
         
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 TPS22941 TPS22942 TPS22943 TPS22944 TPS22945 TPS22946 TPS22949 TPS22949A
Adjustable Current Limit(Min)(A)0.04  0.1  0.04  0.1  0.1  0.155 ,0.07 ,0.03  0.1  0.1  
rDS(on) per FET(Typ)(mOhms)400  400  400  400  400  300  300  300  
Number of FETs1  1  1  1  1  1  2  2  
Enable/ShutdownActive Low  Active Low  Active High  Active High  Active High  Active High  Active High  Active High  
Vin(Min)(V)1.62  1.62  1.62  1.62  1.62  1.62  1.62  1.62  
Vin(Max)(V)5.5  5.5  5.5  5.5  5.5  5.5  4.5  4.5  
Iq(Typ)(uA)40  40  40  40  40  1  85  85  
Pin/Package5SC70  5SC70  5SC70  5SC70  5SC70  6DSBGA  8DSBGA  8DSBGA, 8SON  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS22946: Ultra-Low Power, Low Input Voltage, Current Limited Load Switch
  • TPS22941: Low-Input Voltage 40mA Current Limited Load Switch with Shut-Off and Auto-Restart Features
  • TPS2082: 0.7A, 2.7 to 5.5V Dual (2 Input/ 2 Output) High-Side MOSFET Switch IC, Fault Reporting, 2 Act-Lo En

Product Information

Features

  • Integrated Current Limiter
    • Input Voltage Range: 1.62 V to 4.5 V
    • Low ON-Resistance
      • rON = 300-m at VIN = 4.5 V
      • rON = 350-m at VIN = 3.3 V
      • rON = 400-m at VIN = 2.5 V
      • rON = 600-m at VIN = 1.8 V
    • Integrated 100-mA Minimum Current Limit
    • Undervoltage Lockout
    • Fast-Current Limit Response Time
    • Integrated Fault Blanking and Auto Restart
  • Stable Without Current Limiter Output Capacitor (TPS22949A Only)
  • Integrated Low-Noise RF LDO
    • Input Voltage Range: 1.62 V to 4.5 V
    • Low Noise: 50 µVrms (10 Hz to 100 kHz)
    • 80-dB VIN PSRR (10 Hz to 10 kHz)
    • Fast Start-Up Time: 130 µs
    • Low Dropout 100 mV at Iload =100 mA
    • Integrated Output Discharge
    • Stable With 2.2-µF Output Capacitor

View All Features in Datasheet

Description

The TPS22949 and TPS22949A are devices that provides protection to systems and loads in high-current conditions. The device contains a 500-m current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 4.5 V as well as a low-dropout (LDO) regulator with a fixed output voltage of 1.8 V.

The switch is controlled by an on/off input (EN1), which is capable of interfacing directly with low-voltage control signals. When the switch current reaches the maximum limit, the TPS22949/TPS22949A operates in a constant-current mode to prohibit excessive currents from causing damage. If the constant current condition still persists after 12 ms, these devices shut off the switch and pull the fault signal pin (OC) low.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TPS22949ADRGRACTIVE-40 to 850.70 | 1kuSON (DRG) | 8 3000 | LARGE T&R
TPS22949AYZPRACTIVE-40 to 850.70 | 1kuDSBGA (YZP) | 8 3000 | LARGE T&R

* 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 10:16 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 16 WeeksTPS22949ADRGR
WorldwideMouser Electronics >1k
TI Lead Time*: 14 WeeksTPS22949AYZPR
WorldwideDigiKey >1k
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
TPS22949ADRGR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS22949AYZPR RoHS Compliant Green (RoHS & no Sb/Br) SNAGCU 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 TPS22949A Help

Datasheet

Application Notes

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS22946 Ultra-Low Power, Low Input Voltage, Current Limited Load Switch POWER MUXES AND CURRENT LIMITED SWITCHES-CURRENT LIMITED SWITCHES TI customers also evaluated this product.
TPS22941 Low-Input Voltage 40mA Current Limited Load Switch with Shut-Off and Auto-Restart Features POWER MUXES AND CURRENT LIMITED SWITCHES-CURRENT LIMITED SWITCHES TI customers also evaluated this product.
TPS2082 0.7A, 2.7 to 5.5V Dual (2 Input/ 2 Output) High-Side MOSFET Switch IC, Fault Reporting, 2 Act-Lo En POWER MUXES AND CURRENT LIMITED SWITCHES-CURRENT LIMITED SWITCHES TI customers also evaluated this product.

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