TPS22922 具有快速输出放电功能的 3.6V,2A,14mΩ 负载开关 | 德州仪器

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具有快速输出放电功能的 3.6V,2A,14mΩ 负载开关


Special Note

No EVM exists for the TPS22922, however, similar EVM TPS22922BEVM is available.


TPS22921, TPS22922, and TPS22922B are small, low rON load switches with controlled turnon. The TPS22921/2/2B contains a P-channel MOSFET that can operate over an input voltage range of 0.9 V to 3.6 V. The switch is controlled by an on/off input (ON), which can interface directly with low-voltage control signals. In TPS22922 and in TPS22922B, a 65-Ω on-chip load resistor is added for output quick discharge when the switch is turned off. The rise time (slew rate) of the device is internally controlled in order to avoid inrush current: TPS22921 and TPS22922 feature a 30-µs rise time, whereas TPS22922B is 200 µs.

TPS22921, TPS22922, and TPS22922B feature low quiescent and shutdown currents and are available in space-saving 6-pin wafer-chip-scale packages DSBGA (WCSP: YZP and YZT with 0.5-mm pitch and YFP with 0.4-mm pitch) which make them ideal for portable electronics. The devices are characterized for operation over the free-air temperature range of –40°C to 85°C.


  • Integrated P-Channel Load Switch
  • Input Voltage: 0.9 V to 3.6 V
  • ON-Resistance (Typical Values)
    • rON = 14 mΩ at VIN = 3.6 V
    • rON = 20 mΩ at VIN = 2.5 V
    • rON = 33 mΩ at VIN = 1.8 V
    • rON = 67 mΩ at VIN = 1.2 V
    • rON = 116 mΩ at VIN = 1.0 V
  • 2-A Maximum Continuous Switch Current
  • Quiescent Current:
    • Typical 78 nA at 1.8 V
  • Shutdown Current:
    • Typical 35 nA at 1.8 V
  • Low Threshold Control Input Enable the use of
    1.2 V, 1.8 V, 2.5 V, or 3.3 V Logic
  • Controlled Slew Rate to Avoid Inrush Currents
    • tR = 30 µs at VIN = 1.8 V
    • tR = 200 µs at VIN = 1.8 V
  • Quick Output Discharge (TPS22922/2B)
  • ESD Performance Tested Per JESD 22
    • 3000-V Human Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Six Terminal Wafer-Chip-Scale DSBGA Package
    (nominal dimensions shown - see Mechanical,
    Packaging, and Orderable Information
    for details)
    • 0.9-mm × 1.4-mm, 0.5-mm Pitch,
      0.5 mm Height (YZP)
    • 0.9-mm × 1.4-mm, 0.5-mm Pitch,
      0.625 mm Height (YZT)
    • 0.8-mm × 1.2-mm, 0.4-mm Pitch,
      0.5-mm Height (YFP)


与其它产品相比 负载开关 邮件 下载到电子表格中
Part number 立即下单 Number of channels (#) Vin (Min) (V) Vin (Max) (V) Imax (A) Ron (Typ) (mOhm) Shutdown current (ISD) (Typ) (uA) Quiescent current (Iq) (Typ) (uA) Soft start Rise time (Typ) (us) Features Operating temperature range (C)
TPS22922 立即下单 1     0.9     3.6     2     16     0.13     0.2     Fixed Rise Time     20
Quick Output Discharge     -40 to 85