NCP715SQ30T2G

Product Overview

The NCP715SQ30T2G from onsemi is a linear voltage regulator IC with a positive fixed 3 V output and a single regulator channel. It is packaged in a surface-mount SC-88A package, also identified as SC-70-5 or SOT-353, and provides 50 mA output current. The device has a maximum input voltage of 24 V and a maximum dropout voltage of 0.4 V at 50 mA. Its quiescent current is 4.2 µA, with a maximum supply current of 5.8 µA, while power-supply rejection is 60 dB at 100 kHz. Integrated protection features include over-current, over-temperature, and under-voltage lockout, and the junction temperature operating range is -40°C to 125°C.

Key Features

• Fixed positive 3 V output from a single linear regulator channel.
• 50 mA output current with 0.4 V maximum dropout at 50 mA.
• 24 V maximum input voltage.
• 4.2 µA quiescent current and 5.8 µA maximum supply current.
• 60 dB power-supply rejection at 100 kHz.
• Over-current, over-temperature, and under-voltage lockout protection.
• Surface-mount SC-88A (SC-70-5/SOT-353) package.

Applications

• Low-current 3 V supply rail for compact control or sensing boards.
• Fixed 3 V linear regulation for circuitry sensitive to supply noise around 100 kHz.
• Protected 3 V supply rail for low-current loads requiring basic regulator fault protection.

Design & Procurement Notes

Designers should verify that the input supply stays within the 24 V maximum limit and provides enough headroom above the fixed 3 V output, especially near the 50 mA load current where the maximum dropout is 0.4 V. The 4.2 µA quiescent current and 5.8 µA maximum supply current are relevant for low-current rails where quiescent and supply current are design constraints. Layout and input filtering should be evaluated to preserve the 60 dB PSRR at 100 kHz in applications where supply noise is a concern. Thermal considerations should be based on the -40°C to 125°C junction temperature range and the SC-88A (SC-70-5/SOT-353) surface-mount footprint. The integrated over-current, over-temperature, and UVLO protections address basic regulator fault conditions, but system-level requirements should still be checked against the final load and supply architecture.