R1180Q331B-TR-FE

Product Overview

The R1180Q331B-TR-FE from Nisshinbo Micro Devices Inc. is a single-output linear voltage regulator that provides a fixed positive 3.3 V rail from an input voltage up to 6 V. It is intended for compact surface-mount designs that require a 3.3 V supply from a higher voltage source. The device includes an enable control feature and over-current protection, and it operates over a temperature range of -40°C to 85°C. Its SC-82AB, SOT-343 package supports space-constrained board layouts.

Key Features

• Fixed positive 3.3 V output with one regulator channel.
• Maximum input voltage of 6 V.
• Output current of 150 mA.
• Maximum dropout voltage of 0.4 V at 150 mA.
• Quiescent current of 1.5 µA.
• Enable control feature.
• Over-current protection.
• Surface-mount SC-82AB, SOT-343 package.
• Operating temperature range of -40°C to 85°C.

Applications

• 3.3 V rail generation from an input up to 6 V in battery-powered portable devices.
• Low-current 3.3 V supply for sensor modules and small digital subsystems.
• Fixed-output supply in compact boards using the SOT-343 footprint.
• Enable-controlled 3.3 V rail in designs that require output activation control.

Design & Procurement Notes

When selecting this regulator, verify that the input remains at or below 6 V and that sufficient headroom exists above 3.3 V, especially near 150 mA where dropout can reach 0.4 V. The fixed 3.3 V output means the selected part provides a single defined voltage rather than an adjustable output. The load must remain within the 150 mA output current limit. The 1.5 µA quiescent current is relevant for low standby-power designs, while the enable control allows the output to be enabled or disabled by control. The SC-82AB, SOT-343 surface-mount package and -40°C to 85°C operating range should be checked against the board assembly and environmental requirements.