The TPS22910A, TPS22912C, and TPS22913B/C are small, low rON load switches with controlled turn on. The device contains a P-channel MOSFET that can operate over an input voltage range of 1.4 V to 5.5 V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage GPIO control signals.
The TPS22910A, TPS22912C, and TPS22913B/C devices provide reverse current protection in ON and OFF states. An internal reverse voltage comparator disables the power-switch when the output voltage (VOUT) is driven higher than the input voltage (VIN), by VRCP, to quickly (10 µs typ) stop the flow of current towards the input side of the switch. Reverse current protection is always active, even when the power-switch is disabled. Additionally, under-voltage lockout (UVLO) protection turns the switch off if the input voltage is too low.
The TPS22913B/C contains a 150-Ω on-chip load resistor for quick output discharge when the switch is turned off.
This family of devices have various slew rate options to avoid inrush current (see for details), are available in an ultra-small, space-saving 4-pin WCSP packages, and are characterized for operation over the free-air temperature range of –40°C to 85°C.
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | TPS2291xx Ultra-small, Low On Resistance Load Switch With Controlled Turn-on datasheet (Rev. F) | PDF | HTML | 07 Jan 2015 |
| E-book | 11 Ways to Protect Your Power Path | 03 Jul 2019 | ||
| Application note | Load Switch Thermal Considerations (Rev. A) | 11 Okt 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 | Reverse Current Protection in Load Switches | 19 Mai 2016 | ||
| Application note | Managing Inrush Current (Rev. A) | 28 Mai 2015 | ||
| EVM User's guide | TPS22910-13 EVM User's Guide (Rev. A) | 09 Jan 2012 |
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