Texas Instruments TPS2149 TPS2159 Data Sheet User Manual
Summary
A datasheet for the TPS2149 power management IC for USB bus-powered hubs from Texas Instruments. The device integrates a 3.3V 200mA LDO voltage regulator and two 5V high-side MOSFET switches with independent thermal and short-circuit protection. It meets USB 2.0 hub requirements with controlled rise/fall times to minimize current surges, overcurrent indication with transient filtering, and 75µA typical supply current. The manual covers functional description, application circuits, electrical specifications, and thermal considerations. Designed for engineers developing USB hubs, keyboards, monitors, and hub box products.
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 24 |
| File Size | 728.32 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What is the TPS2149 used for?
It is a complete power management solution for USB bus-powered hubs, keyboards, monitors, and hub boxes.
What are the key features of the TPS2149?
It has a 3.3V 200mA LDO, two 5V high-side MOSFET switches, independent thermal/short-circuit protection, and overcurrent indicators.
What is the operating voltage range?
It operates from 2.9V to 5.5V.
What package does the TPS2149 come in?
It is available in an 8-pin MSOP (PowerPAD) package.
What is the maximum continuous output current per switch?
Each power-distribution switch can supply 200mA of continuous current.