TPS2500

TPS2500, TPS2501 www.ti.com SLVS886C – OCTOBER 2008 – REVISED AUGUST 2010 INTEGRATED USB POWER SWITCH WITH BOOST CONVERTER Check for Samples: TPS2500, TPS2501 TPS2500 Boost Efficiency − % FEATURES 1 23 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 ms 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 TYPICAL APPLICATION CIRCUIT 2.2 mH 1.8-V to 5.25-V Input IN EN 10 mF SW AUX ENUSB FAULT RFAULT 5 V Auxiliary Load Power, 100 mA(2) 22 mF USB FAULT Flag RILIM ILIM GND USB PGND POWER PAD 5 V USB Power 120 mF(1) Data Data (1) Requirement for USB applications only; downstream facing ports should be bypassed with 120 mF minimum per hub. (2) Additional current can be supplied from AUX if <1 A is required for USB ports; total current should not exceed 1.1 A at VIN = 3 V. 5 V USB Port #1 500 mA 5 V USB Port #2 500 mA S0380-02 APPLICATIONS Portable Applications Using Single Li+ Cell USB Hosts Without Native 5-V Supplies DESCRIPTION The TPS2500 and TPS2501 provide an integrated solution to meet USB 5-V ...