The TPS22941/2/3/4/5 load switches provide protection to systems and loads in high-current conditions. The devices contain a 0.4-Ω current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V. Current is prevented from flowing when the MOSFET is off. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22941/2/3/4/5 includes thermal shutdown protection that prevents damage to the device when a continuous over-current condition causes excessive heating by turning off the switch.
These devices provide an integrated, robust solution to provide current limiting the output current to a safe level by switching into a constant-current mode when the ouptut load exceeds the current-limit threshold. The OC logic output asserts low during overcurrent, undervoltage, or overtemperature conditions. These additional features make the TPS22941/2/3/4/5 an ideal solution for applications where current limiting is necessary.
This family of devices are available in a SC70-5 (DCK) package. It is characterized for operation over the free-air temperature range of –40°C to 85°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS2294x Low-input-voltage Current-limited Load Switches With Shut Off And Auto-Restart Feature datasheet (Rev. D) | PDF | HTML | 10 Jul 2014 |
| Application note | Load Switch Thermal Considerations (Rev. A) | 11 Oct 2018 | ||
| Application note | Basics of Load Switches (Rev. A) | 05 Sep 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| Application note | Selecting a Load Switch to Replace a Discrete Solution | 30 Apr 2017 | ||
| Application note | Timing of Load Switches | 27 Apr 2017 | ||
| Application note | Managing Inrush Current (Rev. A) | 28 May 2015 |
For additional terms or required resources, click any title below to view the detail page where available.
The TPS22945EVM-082 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22945 load switch. The VIN and VOUT connections to the device and the PCB layout routing provide a low resistance pathway into and out of the device under test. Test point connections allow the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-SC70 (DCK) | 5 | Ultra Librarian |
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