NJM78M05SDL1-TE1

Product Overview

The NJM78M05SDL1-TE1 from Nisshinbo Micro Devices Inc. is a fixed-output linear voltage regulator in a surface-mount TO-252-3 DPAK package. It provides a positive 5V output from a single regulator channel and supports up to 500mA output current. The device accepts input voltages up to 35V and specifies a maximum dropout of 1.8V at 500mA, with over-current and over-temperature protection included.

Key Features

• Fixed positive 5V output from a single regulator channel.
• Rated output current of 500mA.
• Input voltage maximum of 35V.
• Maximum dropout voltage of 1.8V at 500mA.
• Quiescent current of 6mA and PSRR of 80dB at 120Hz.
• Over-current and over-temperature protection.
• Operating temperature range of -40°C to 125°C in a TO-252-3 surface-mount package.

Applications

• 5V rail generation for embedded control boards and peripheral logic sections.
• Regulated supply for sensors and small digital modules requiring a fixed 5V output.
• Board-level power conditioning where a single linear regulator derives 5V from a higher DC input.

Design & Procurement Notes

The fixed 5V output and 500mA current rating address board power rails that do not require adjustable output selection. Design should account for the 1.8V maximum dropout at 500mA, ensuring enough input headroom under full-load conditions. Because the device is a linear regulator, input-to-output voltage difference and load current affect heat, so thermal evaluation should include the TO-252-3 package, PCB copper, and the -40°C to 125°C operating range. The 80dB PSRR at 120Hz specifies ripple rejection at that frequency, while the 6mA quiescent current should be considered in power-budget analysis.