R1180N291B-TR-FE

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The R1180N291B-TR-FE is a fixed-output low-dropout (LDO) voltage regulator manufactured by Nisshinbo Micro Devices. It provides a stable 2.8V output with a maximum load current of 150mA. The device operates within an input voltage range of 1.7V to 6.0V and features a typical quiescent current of 1µA. Key electrical specifications include a dropout voltage of 250mV at 150mA, line regulation of 0.05%/V, and load regulation of 20mV. Voltage accuracy is maintained at ±2%. The component supports operation from -40°C to +85°C and is housed in a compact SOT-23-5 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Ultra-low power consumption with 1µA operating current for battery efficiency
• High stability with ceramic capacitor compatibility
• Compact surface-mount design for space-constrained applications

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable electronic devices requiring extended battery life
• Battery-powered sensor modules
• Low-power microcontroller supply rails

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific output voltage suffix against the datasheet, as 'B' typically denotes 2.8V while similar models like 'C' denote 2.9V. Confirm the manufacturer is Nisshinbo Micro Devices, not Ricoh, despite potential distributor listing errors. Ensure the SOT-23-5 package matches your PCB footprint requirements before ordering.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 2.8V rail is required with minimal ground current draw. It is suitable for systems where input voltage varies between 1.7V and 6.0V. Consider the 150mA limit for load requirements and ensure thermal dissipation stays within the 420mW power rating for the SOT-23-5 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the R1180N series of CMOS LDO regulators from Nisshinbo Micro Devices. The series is characterized by high precision and low noise, designed specifically for portable equipment. The R1180N291B variant is distinguished by its 2.8V fixed output, differentiating it from other voltage options in the same family.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Check for direct pin-compatible substitutes from Nisshinbo with identical 2.8V output and 150mA current ratings. Verify that alternative components maintain the same 1µA quiescent current and SOT-23-5 package dimensions to ensure mechanical and electrical compatibility.