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The TPS2051CDBVR from Texas Instruments is a single-channel, N-channel power distribution switch designed for applications such as USB, where heavy capacitive loads and short circuits are common. It features a fixed current limit of 500mA, protecting the power supply from overloads.
This device operates with an input voltage range of 4.5V to 5.5V and has a low on-resistance of 97mOhm typical. The switch type is a USB Switch, with an active-high enable and high-side output configuration. Key fault protection mechanisms include current limiting, over-temperature protection, reverse current blocking, and undervoltage lockout (UVLO).
The TPS2051CDBVR is available in a compact SOT-23-5 surface mount package. It includes features like load discharge and a status flag for monitoring. The operating temperature range is -40°C to 125°C.
This power switch is part of the TPS20xxC family, offering pin-for-pin compatibility with existing TI switch portfolios. It provides a predictable fault current under all conditions and a fast overload response time of 2µs.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.19 | $0.19 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
4.5V to 5.5V.
SOT-23-5 (SC-74A, SOT-753) surface-mount package.
Ambient operating temperature range of -40°C to 85°C and junction temperature range of -40°C to 125°C.
0.5A.
Fixed current limiting, over-temperature protection, reverse current protection, and undervoltage lockout (UVLO).
Active high enable input.
97mOhm typical.