TPS2149 Series

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

Catalog

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

Part	Voltage - Supply (Vdd/Vcc)	Voltage - Supply (Vcc/Vdd)	Current - Output (Max)	Rds On (Typ)	Package Name	Operating Temperature (Max)	Operating Temperature (Min)	Output Type	Fault Protection	Output Configuration	Features	Mounting Type	Input Type	Number of Outputs	Input Ratio	Output Ratio	Voltage - Load (Max)	Voltage - Load (Min)	Switch Type	Interface	Package Length	Package Features	Package Width
Texas Instruments TPS2149IDGNR	Not Required	Not Required	200 mA	340 mOhm	8-HVSSOP 8-MSOP 8-TSSOP	100 °C	-40 °C	N-Channel	Current Limiting (Fixed) Over Temperature UVRO	High Side	Status Flag	Surface Mount	Non-Inverting	2	1	2	5.5 V	2.9 V	USB Switch	On/Off	0.118 in	Exposed Pad	3 mm
Texas Instruments TPS2149IDGN	Not Required	Not Required	200 mA	340 mOhm	8-HVSSOP 8-MSOP 8-TSSOP	100 °C	-40 °C	N-Channel	Current Limiting (Fixed) Over Temperature UVRO	High Side	Status Flag	Surface Mount	Non-Inverting	2	1	2	5.5 V	2.9 V	USB Switch	On/Off	0.118 in	Exposed Pad	3 mm
Texas Instruments TPS2149IDGNRG4	Not Required	Not Required	200 mA	340 mOhm	8-HVSSOP 8-MSOP 8-TSSOP	100 °C	-40 °C	N-Channel	Current Limiting (Fixed) Over Temperature UVRO	High Side	Status Flag	Surface Mount	Non-Inverting	2	1	2	5.5 V	2.9 V	USB Switch	On/Off	0.118 in	Exposed Pad	3 mm

Catalog

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

Description

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.