The TPS22971 is a space-saving single-channel load switch with controlled and adjustable turn-on slew rate and an integrated power good indicator. the device contains an n-channel mosfet that can operate over a low input voltage range of 0.65 v to 3.6 V and can support a maximum continuous current of 3 A. A low on-resistance of 6.7-mΩ minimizes the power loss and voltage drop across the load switch. The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals.
By default, the TPS22971 has a fast turn-on time to minimize system startup and wait time. The adjustable slew rate can also be reduced to limit inrush current. A power good (PG) signal internally monitors the gate threshold and indicates when the switch is fully on. When the switch is disabled, a 150-Ω on-chip resistor quickly discharges the output to ground and keeps it from floating.
The TPS22971 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to 105°C and integrates thermal shutdown to turn off in case of overheating.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS22971 3.6-V, 3-A, 6.7-mΩ On-Resistance Load Switch with Adjustable Fast Turn-ON and Power Good datasheet (Rev. C) | PDF | HTML | 17 Feb 2020 |
| Application note | Basics of Power Switches (Rev. A) | PDF | HTML | 26 Apr 2019 | |
| Application note | Load Switch Thermal Considerations (Rev. A) | 11 Oct 2018 | ||
| Application note | Basics of Load Switches (Rev. A) | 05 Sep 2018 | ||
| Application note | Selecting a Load Switch to Replace a Discrete Solution | 30 Apr 2017 | ||
| Application note | Timing of Load Switches | 27 Apr 2017 | ||
| EVM User's guide | TPS22971 Load Switch Evaluation Module User's Guide | 12 Apr 2017 | ||
| Application note | Fundamentals of On-Resistance in Load Switches | 09 Jun 2016 | ||
| Application note | Quiescent Current vs Shutdown Current for Load Switch Power Consumption | 30 Mar 2016 | ||
| 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.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YZP) | 8 | Ultra Librarian |
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