RP170N501D-TR-FE

Product Overview

The RP170N501D-TR-FE from Nisshinbo Micro Devices Inc. is a single-channel linear voltage regulator for fixed positive output regulation. The device provides a fixed 5 V output at 300 mA and accepts input voltages up to 10 V, with a maximum dropout of 0.75 V at 300 mA. A 40 µA quiescent current is specified, and an enable control allows the output to be managed by system logic. The regulator includes over-current and over-temperature protection features. It is offered in a surface-mount SOT-23-5 package and is specified for an ambient operating temperature range of -40°C to 85°C.

Key Features

• Fixed positive 5 V output with an output current of 300 mA.
• Input voltage up to 10 V and maximum dropout of 0.75 V at 300 mA.
• Single regulator channel with enable control for output activation and deactivation.
• Quiescent current of 40 µA.
• Integrated over-current and over-temperature protection.
• Surface-mount SOT-23-5 package, also identified as SC-74A or SOT-753.
• Specified ambient operating temperature range of -40°C to 85°C.

Applications

• Fixed 5 V rail generation for microcontroller and digital logic boards.
• Regulated 5 V power for sensors, communication modules, or peripheral circuits.
• Controlled 5 V subsystem power using the enable input.

Design & Procurement Notes

Designers should verify that the input supply remains within the 10 V maximum and that the available headroom above 5 V exceeds the 0.75 V dropout specification at the required load current. The 40 µA quiescent current and enable function should be evaluated where quiescent load and output sequencing are important. The 300 mA output limit should be checked against total load current. The SOT-23-5 surface-mount package and -40°C to 85°C ambient range should be considered with board layout, thermal dissipation, and enclosure conditions. Procurement should match the exact part number to avoid substituting different output voltage, current, or package variants.