Overview
The TPS22933ARSER is a compact and efficient power multiplexer designed by Texas Instruments. This device is a small, low ON-resistance, triple-input power multiplexer with auto-input selection and a low-dropout linear regulator (LDO). It contains three P-channel MOSFETs that can operate over an input voltage range of 2.5 V to 12 V. The TPS22933 automatically selects the highest input level (from BAT, USB, and DC_IN) and enables that input to source the LDO, ensuring optimal power distribution while minimizing energy loss. The device is available in a space-saving 8-pin µQFN package and is characterized for operation over the free-air temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of input channels | 3 | |
| Input voltage range | 2.5 to 12 | V |
| ON-resistance (rON) at VIN = 5.0 V | 2.4 | Ω |
| ON-resistance (rON) at VIN = 4.2 V | 2.6 | Ω |
| Maximum continuous current | 0.05 | A |
| Quiescent current (Iq) | 0.7 | µA |
| Operating temperature range | -40 to 85 | °C |
| Package type | 8-pin µQFN | |
| Switchover time (typical) | 18 | µs |
| Delay time - ON | 65 | µs |
| Delay time - OFF | 32 | µs |
Key Features
- Three integrated load switches that automatically choose the highest input level (BAT, USB, and DC_IN).
- Integrated 3.6-V fixed LDO with switched and always-on LDO outputs.
- Low ON-resistance (rON) for efficient power transfer.
- Compact µQFN package (1.5 mm × 1.5 mm) for space-saving designs.
- Low threshold control input (EN) for easy interface with low-voltage control signals.
- Reverse current blocking and smart switching for efficient power management.
- Simplified voltage regulation and automated load control for optimal efficiency.
Applications
The TPS22933ARSER is particularly suited for handheld and mobile devices due to its compact size, low power consumption, and efficient power management capabilities. It is ideal for applications requiring multiple power source selection and stable voltage regulation, such as smartphones, tablets, and other portable electronic devices.
Q & A
- What is the input voltage range of the TPS22933ARSER?
The input voltage range is from 2.5 V to 12 V.
- How many input channels does the TPS22933ARSER have?
The device has three input channels.
- What is the maximum continuous current of the TPS22933ARSER?
The maximum continuous current is 0.05 A.
- What type of package does the TPS22933ARSER come in?
The device is available in an 8-pin µQFN package.
- What is the operating temperature range of the TPS22933ARSER?
The operating temperature range is from -40°C to 85°C.
- Does the TPS22933ARSER have an integrated LDO?
Yes, it has an integrated 3.6-V fixed LDO.
- What is the typical switchover time of the TPS22933ARSER?
The typical switchover time is 18 µs.
- Is the TPS22933ARSER suitable for handheld devices?
Yes, it is particularly suited for handheld and mobile devices due to its compact size and efficient power management.
- Does the TPS22933ARSER support reverse current blocking?
Yes, it supports reverse current blocking.
- How does the TPS22933ARSER select the input power source?
The device automatically selects the highest input level among BAT, USB, and DC_IN.
