Integrated USB Power Switch with Boost Converter - TPS2500


Integrated USB Power Switch with Boost Converter



The TPS2500 and TPS2501 provide an integrated solution to meet USB 5-V power requirements from a 1.8-V to 5.25-V input supply. The features include a Hi-Speed USB compliant power output, output switch enable, current limit, and overcurrent fault reporting.

The 1.8-V to 5.25-V input can be supplied by sources including dc/dc regulated supplies (e.g., 3.3 V), or batteries such as single-cell Li+ or three-cell NiCd, NiMH, or alkaline.

The USB power-switch current limit is programmable via an external resistor from as low as 130 mA to as high as 1400 mA (typical). Two standard USB ports can be supported from a single TPS2500 or TPS2501 at the 1400-mA setting.

Additionally, the boost converter output is available as an auxiliary 5.1-V output to power additional loads. The total current supplied by the USB output and the auxiliary cannot exceed 1148  mA at VIN = 3 V.


  • Integrated Synchronous Boost Converter and USB Current-Limit Power Switch
  • Light-Load, High-Efficiency Eco-mode™ Control Scheme (TPS2500)
    or Constant Frequency (TPS2501)
  • 1.8-V to 5.25-V Input Voltage (2.2-V Minimum Start-Up Voltage)
  • Adjustable USB Current Limit
    • 130 mA to 1400 mA (Typical)
  • Accurate 20% Current Limit at 1.4-A Setting
  • Powers up to Two Standard USB Ports
  • Auxiliary 5.1-V Output
  • Fast Overcurrent-Response Time – 5 µs Typical
  • Small 3-mm × 3-mm × 0.9-mm SON-10 Package
  • 15-kV / 8-kV System-Level ESD Capable
  • UL Listed - File No. E169910
    • Portable Applications Using Single Li+ Cell
    • USB Hosts Without Native 5-V Supplies

Eco-mode, PowerPAD are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.

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Parametrics Compare all products in Switch with Boost Converter

Vin (Min) (V)
Vin (Max) (V)
Number of Switches
Iout @ Vin=3V (max) (A)
Current Limit (A)
Current Limit Accuracy @ 1.4A (%)
Current Limit Topology
Boost Switch Current Limit (typ) (A)
Continuous Current (Max) (A)
Eco-Mode Light-Load Efficiency
Switching Frequency (Typ) (kHz)
USB Switch rDS(on) (mOhms)
Operating Temperature Range (C)
TPS2500 TPS2501
1.8    1.8   
5.25    5.25   
1    1   
1.15    1.15   
0.13 to 1.4    0.13 to 1.4   
+/-20    +/-20   
Constant-Current    Constant-Current   
4.5    4.5   
1.4    1.4   
Active High    Active High   
Enabled    Disabled   
1000    1000   
50    50   
-40 to 85    -40 to 85   
10VSON    10VSON