R1191N050D-TR-FE

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

The R1191N050D-TR-FE is a fixed-output low-dropout (LDO) voltage regulator manufactured by Nisshinbo Micro Devices. It provides a stable 5 V output with a maximum continuous current of 300 mA. The device operates within an input voltage range of 3.5 V to 16 V and features a typical dropout voltage of 550 mV at full load. It includes reverse current protection and maintains a quiescent current of 50 uA. The unit offers high power supply rejection ratio (PSRR) of 60 dB, line regulation of 0.02 %/V, and load regulation of 50 mV. Voltage accuracy is specified at 1.5 %. It functions reliably between -40 C and +85 C in a compact SOT-23-5 surface-mount package.

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

• Integrates manual ECO mode shift functionality for optimized power consumption management
• Includes built-in reverse current protection to prevent backflow from output to input
• Provides stable linear regulation with low noise characteristics suitable for sensitive circuits

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

• Battery-powered portable electronic devices requiring efficient power management
• Embedded systems utilizing microcontrollers or sensors needing clean 5 V rails
• Industrial control modules operating within standard commercial temperature ranges

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

Verify the complete part number including suffixes such as TR-FE against official datasheets to ensure correct packaging and pin configuration. Confirm RoHS compliance status through manufacturer documentation prior to integration. Cross-reference thermal dissipation requirements with PCB layout capabilities to maintain operation within the specified -40 C to +85 C ambient temperature limits during final assembly validation.

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

Select this component when a fixed 5 V output is required with moderate current capability up to 300 mA. It is suitable for applications where input voltages vary between 3.5 V and 16 V. Consider its reverse current protection feature if the system design requires isolation against potential back-powering scenarios. Ensure the SOT-23-5 package footprint aligns with existing board space constraints and thermal management strategies.

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

This device belongs to the R1191N series of LDO regulators from Nisshinbo Micro Devices. The series is characterized by low quiescent current and integrated safety features like reverse current protection. It serves as a power management solution for general-purpose electronics, offering reliability in compact form factors while maintaining precise voltage regulation under varying load conditions.

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

Consult official substitution guides for compatible parts within the same family or equivalent performance tiers. Verify pin compatibility and electrical specifications before replacing components in existing designs.