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TPS2149

ACTIVE

2-ch, 0.15A loading, 340mΩ USB power switch, active-low + 3.3V LDO shared input with switches

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Data sheet

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TPS25221 ACTIVE 0.275-2.7A adj. ILIMIT, 2.5-5.5V, 70mΩ USB power switch, active-high, reverse blocking This product is a single channel adjustable current limit switch that can cover the same current limit requirement.

TPS2149

ACTIVE
Data sheet Order now

Product details

Product type Fixed current limit, Power switch, Switch with LDO Vin (min) (V) 2.9 Vin (max) (V) 5.5 Operating temperature range (°C) -40 to 100 Current limit accuracy at 1 A 0.33 Rating Catalog
Product type Fixed current limit, Power switch, Switch with LDO Vin (min) (V) 2.9 Vin (max) (V) 5.5 Operating temperature range (°C) -40 to 100 Current limit accuracy at 1 A 0.33 Rating Catalog
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9
  • Complete Power Management Solution for USB Bus-Powered Hubs
  • 3.3-V 200 mA Low-Dropout Voltage Regulator
  • Two 5-V 340-m (Typ) High-Side MOSFETs
  • Independent Thermal- and Short-Circuit Protection for LDO and Each Switch
  • Overcurrent Indicator With Transient Filter
  • 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 Bus-Powered Hubs
      • Keyboards
      • Monitors
      • Hub Boxes

PowerPAD is a trademark of Texas Instruments.
  • Complete Power Management Solution for USB Bus-Powered Hubs
  • 3.3-V 200 mA Low-Dropout Voltage Regulator
  • Two 5-V 340-m (Typ) High-Side MOSFETs
  • Independent Thermal- and Short-Circuit Protection for LDO and Each Switch
  • Overcurrent Indicator With Transient Filter
  • 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 Bus-Powered Hubs
      • Keyboards
      • Monitors
      • Hub Boxes

PowerPAD is a trademark of Texas Instruments.

The TPS2149 incorporates two power distribution switches and an LDO in one small package, providing a USB bus-powered hub power management solution that saves up to 60% in board space over typical implementations.

The TPS2149 meets USB 2.0 bus-powered hub requirements. An integrated LDO regulates the 5-V bus power down to 3.3 V for the USB controller. The two MOSFET switches provide power to the downstream ports. With independent enables, the downstream ports remain unpowered until the hub completes enumeration.

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 TPS2149 has active-low enables while the TPS2159 has active-high enables.

The TPS2149 incorporates two power distribution switches and an LDO in one small package, providing a USB bus-powered hub power management solution that saves up to 60% in board space over typical implementations.

The TPS2149 meets USB 2.0 bus-powered hub requirements. An integrated LDO regulates the 5-V bus power down to 3.3 V for the USB controller. The two MOSFET switches provide power to the downstream ports. With independent enables, the downstream ports remain unpowered until the hub completes enumeration.

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 TPS2149 has active-low enables while the TPS2159 has active-high enables.
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* Data sheet 3.3-V LDO and Dual Switch For USB Bus-Powered Hub Power Management datasheet 08 Aug 2001

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