Texas Instruments TPS25221DBVR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | SOT-23-6 |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Sensing Method | - |
| Voltage - Input | 2.5V ~ 5.5V |
| Current - Output | 2A |
| Supplier Device Package | SOT-23-6 |
| Accuracy | ±6% |
| Function | Current Switch |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS25221 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TPS25221DBVR power distribution switch Current Switch Regulator 2A
The TPS25221DBVR is a high-performance power distribution switch from Texas Instruments, designed for precision power management in USB ports and other hot-swappable applications. This advanced IC integrates a 1.5A continuous current-rated N-channel MOSFET with ultra-low 85mΩ on-resistance, delivering efficient power switching with minimal voltage drop. The device features adjustable current limiting (from 0.5A to 1.5A) through an external resistor, providing flexible protection for sensitive downstream components. Its fast short-circuit response time (<2μs) and thermal shutdown protection ensure robust system reliability under fault conditions. The TPS25221DBVR operates across a wide input voltage range of 2.5V to 6.5V, making it compatible with various power sources including USB power rails and lithium-ion battery outputs. The controlled slew-rate output minimizes inrush current during hot-plug events, while the reverse current blocking feature prevents damage from incorrect power connections.
Packaged in a compact SOT-23-5 (DBV) package, this power switch includes an active-low enable input for convenient power sequencing and system control. The device's low quiescent current (35μA typical) makes it ideal for battery-powered portable electronics, while its ±8kV HBM ESD protection enhances durability in consumer applications. The TPS25221DBVR's current-limit flag output provides real-time fault monitoring, enabling smart power management in sophisticated systems. These features combine to create an optimal solution for USB power switching, peripheral ports, and general-purpose power distribution in space-constrained applications such as notebooks, tablets, and industrial controllers.
For applications requiring different specifications, alternative power distribution switches include the TPS22902 (2A, 28mΩ, smaller DSBGA package), FDC6330L (3A load switch with faster turn-on), and AP22802 (2A current limit with adjustable timing). These alternatives offer varying combinations of current handling, on-resistance, and package options to suit different design requirements.
