This file introduces the characteristics of the TPS2148 product. TPS2148 is a chip used for USB peripheral power management. It integrates two power distribution switches and an LDO. It can work in the voltage range of 2.9V to 5.5V and can provide 200mA of continuous current for USB peripherals. It also supports an ambient temperature range of -40°C to 85°C.
The TPS2148 and TPS2158 integrate a 3.3 V low‑dropout regulator and two independent power‑distribution switches in a compact MSOP package. They provide a complete power‑management solution for USB bus‑powered peripherals, supporting input voltages from 2.9 V to 5.5 V and delivering up to 200 mA per switch.
Key features include active‑low (TPS2148) or active‑high (TPS2158) enable inputs, thermal and short‑circuit protection, and a 0.35 V dropout voltage for the LDO. The devices are offered in multiple package options (MSOP‑10, MSOP‑8, TSSOP‑14) and include detailed layout guidelines for the PowerPAD™ thermal pad.
| Regulated output voltage | 3.3 V |
|---|---|
| Maximum continuous output current (LDO) | 200 mA |
| Input voltage range | 2.9 V to 5.5 V |
| Switch continuous current rating | 150 mA |
| Maximum on‑state resistance of MOSFET switches | 580 mΩ |
The devices operate with an input voltage between 2.9 V and 5.5 V.
Each switch can supply up to 200 mA of continuous current.
TPS2148 uses active‑low enables, while TPS2158 uses active‑high enables.