TPS2159

Input voltage range: V_I(VIN),V_I(ENx), . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 6 V
Output voltage range: V_O(OUTx), V_{O(LDO_OUT)}, V_{O(OC )} . . . . . . . . . . . 0.3 V to 6 V
Maximum output current, I_O(OC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±10 mA
Continuous output current, I_O(OUT), I_{O(LDO_OUT)} . . . . . . . . . . . . .  Internally limited
Continuous total power dissipation . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating virtual-junction temperature range, T_J . . . . . . . . . . . . .40°C to 110°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . .  65°C to 150°C
Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds . .260°C
Electrostatic discharge (ESD) protection: Human body model . . . . . . . . . . . . . . 2 kV
Charged device model (CDM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1 kV

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 TPS2149 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.