The TPS22959 is a small, ultra-low RON, single channel load switch with controlled turn on. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.8 V to 5.5 V and supports a maximum continuous current of 15 A.
The combination of ultra-low RON and high current capability of the device makes it ideal for driving processor rails with very tight voltage dropout tolerances. The controlled rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating voltage droop on the power supply. The switch can be independently controlled via the ON pin, which is capable of interfacing directly with low-voltage control signals originating from microcontrollers or low voltage discrete logic. The device further reduces the total solution size by integrating a 224-Ω pull-down resistor for quick output discharge (QOD) when the switch is turned off.
The TPS22959 is available in a small 3.00 mm x 3.00 mm WSON-8 package (DNY). The DNY package integrates a thermal pad which allows for high power dissipation in high current and high temperature applications. The device is characterized for operation over the free-air temperature range of –40°C to 105°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS22959 5.5-V, 15-A, 4.4-mΩ On-Resistance Load Switch datasheet (Rev. B) | PDF | HTML | 27 Jul 2015 |
| 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 | ||
| Application note | Managing Inrush Current (Rev. A) | 28 May 2015 | ||
| EVM User's guide | TPS22959EVM-079 15 A Load Switch IC | 21 Jul 2014 |
For additional terms or required resources, click any title below to view the detail page where available.
The TPS22959EVM is a two sided PCB containing the TPS22959 load switch device. The VIN and VOUT connections to the device and the PCB layout routing are capable of handling high continuous currents and provide a low resistance pathway into and out of the device under test. Test point connections (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DNY) | 8 | Ultra Librarian |
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