Product details

Vin (Min) (V) 2.9 Vin (Max) (V) 5.5 Product type Fixed current limit, Power switch, Switch with LDO Operating temperature range (C) -40 to 85 Rating Catalog
Vin (Min) (V) 2.9 Vin (Max) (V) 5.5 Product type Fixed current limit, Power switch, Switch with LDO Operating temperature range (C) -40 to 85 Rating Catalog
HVSSOP (DGN) 8 9 mm² 3 x 3
  • 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.

  • 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.

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. The switches and the LDO are designed with controlled rise times and fall times to minimize current surges.

The TPS2148 has active-low enables while the TPS2158 has active-high enables.

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. The switches and the LDO are designed with controlled rise times and fall times to minimize current surges.

The TPS2148 has active-low enables while the TPS2158 has active-high enables.

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* Data sheet 3.3-V LDO and Dual Switch for USB Peripheral Power Management datasheet 08 Aug 2001

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