Overview
The TPS22945DCKR is a low-input voltage, current-limited load switch produced by Texas Instruments. This power switch IC is designed for applications requiring efficient power distribution and protection in low-voltage systems. It is particularly suitable for portable devices, IoT applications, and other battery-powered systems. The TPS22945DCKR features a compact SC-70-5 package, making it ideal for space-constrained designs. Its market positioning targets engineers and designers looking for reliable, low-power solutions with robust thermal and current protection features.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 1.62 to 5.5 | V | |
| ON Resistance | 500 | mΩ | at VIN = 3.3V |
| Current Limit | 20 to 100 | mA | |
| Turn-On Time | 60 | µs | |
| Turn-Off Time | 30 | µs | |
| Operating Temperature | -40 to +85 | °C | |
| Package | SC-70-5 | SMD/SMT |
Key Features
- Low ON resistance for minimal power loss.
- Wide input voltage range (1.62V to 5.5V) for versatile applications.
- Current limiting for load and system protection.
- Fast turn-on and turn-off times for efficient power management.
- Thermal shutdown protection to prevent device damage.
Applications
The TPS22945DCKR is widely used in portable electronics, IoT devices, and battery-powered systems. Its compact size and low power consumption make it ideal for smartphones, tablets, and wearable devices. Additionally, it is suitable for industrial applications where reliable power distribution and protection are critical.
Q & A
1. What is the input voltage range of the TPS22945DCKR?
The input voltage range is 1.62V to 5.5V.
2. What is the typical ON resistance of the TPS22945DCKR?
The typical ON resistance is 500 mΩ at 3.3V input.
3. Does the TPS22945DCKR support current limiting?
Yes, it supports current limiting from 20 mA to 100 mA.
4. What is the turn-on time of the TPS22945DCKR?
The turn-on time is 60 µs.
5. What is the operating temperature range of the TPS22945DCKR?
The operating temperature range is -40°C to +85°C.
6. What package does the TPS22945DCKR come in?
It comes in an SC-70-5 package.
7. Is thermal shutdown protection included in the TPS22945DCKR?
Yes, it includes thermal shutdown protection.
8. What are the key applications of the TPS22945DCKR?
Key applications include portable electronics, IoT devices, and battery-powered systems.
9. What is the turn-off time of the TPS22945DCKR?
The turn-off time is 30 µs.
10. Is the TPS22945DCKR suitable for space-constrained designs?
Yes, its compact SC-70-5 package makes it ideal for space-constrained designs.
