TPS2047 and TPS2057 are triple current limited power distribution switches for applications where heavy capacitive loads and short circuits are likely to occur. These devices incorporate in single packages three 135-mΩ N-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches. Each switch is controlled by a logic enable compatible with 5-V and 3-V logic. Gate drive is provided by an internal charge pump that controls the power-switch rise times and fall times to minimize current surges during switching. The charge pump, requiring no external components, allows operation from supplies as low as 2.7 V. When the output load exceeds the maximum current limit, an internal protection circuit will turn off the switch to prevent overheating.
The TPS2047 and TPS2057 are triple power‑distribution switches designed for applications with heavy capacitive loads and possible short circuits. Each device contains three independent N‑channel MOSFET high‑side switches, each limited to 0.44 A continuous current and protected by over‑current, thermal and undervoltage lockout circuits.
The devices operate from 2.7 V to 5.5 V supply voltage, are available in a 16‑pin SOIC package, and function over an ambient temperature range of –40 °C to 85 °C. Internal charge‑pump circuitry provides gate drive without external components, and the logic enable input is compatible with both TTL and CMOS levels.
| On‑state resistance (RDS(on)) | 135 mΩ |
|---|---|
| Continuous output current per channel | 0.44 A |
| Operating temperature range (ambient) | –40 °C to 85 °C |
| Package type | 16‑pin SOIC |
Each channel is limited to a continuous output current of 0.44 A.
Each device contains three independent N‑channel MOSFET high‑side power switches.