RP170N331B-TR-FE

Product Overview

The RP170N331B-TR-FE from Nisshinbo Micro Devices Inc. is a positive fixed-output linear voltage regulator for single-output 3.3V supply conversion in compact surface-mount designs. The device provides one output at 3.3V and supports 300mA of load current, with an input voltage limit of 10V. Its maximum dropout voltage is 0.85V at 300mA, and quiescent current is 40 µA. An enable control feature and over-current and over-temperature protection are included. The regulator is offered in a SOT-23-5 package and is rated for an ambient operating temperature range of -40°C to 85°C.

Key Features

• Positive fixed 3.3V output with 300mA output current
• Input voltage up to 10V and 0.85V dropout at 300mA
• 40 µA quiescent current
• Enable control feature
• Over-current and over-temperature protection
• SOT-23-5 surface-mount package, SC-74A/SOT-753 case
• Operating temperature range -40°C to 85°C

Applications

• Fixed 3.3V load points in electronic assemblies
• Enable-controlled 3.3V power domains for peripheral sections
• Board-level linear regulation from a DC input up to 10V

Design & Procurement Notes

The regulator is a single-output fixed 3.3V linear device, so output voltage cannot be adjusted; choose it when the load requires 3.3V and 300mA. The 10V maximum input and 0.85V dropout at full load determine headroom and power dissipation, so verify input voltage and thermal behavior under worst-case load and ambient temperature. The enable feature allows the output to be controlled externally, while over-current and over-temperature protection support fault conditions. The SOT-23-5 surface-mount package is suitable for compact PCB layouts, and the -40°C to 85°C ambient range should be considered in thermal and enclosure design.