R1191N020D-TR-FE

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

The R1191N020D-TR-FE is a fixed-output low-dropout (LDO) voltage regulator manufactured by Nisshinbo Micro Devices. It provides a stable 2V output with a maximum continuous current of 300mA. The device operates within an input voltage range of 3.5V to 16V and features a typical dropout voltage of 1V at full load. It offers high power supply rejection ratio (PSRR) of 70dB and maintains a line regulation of 0.02%/V. The component supports operation from -40°C to +85°C, consumes 50µA of operating supply current, and includes reverse current protection. It is housed in a compact SOT-23-5 surface-mount package.

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

• Integrated manual ECO mode shift function for optimized power consumption across varying load conditions
• Built-in reverse current protection mechanism to prevent backflow when input voltage drops below output
• High ripple rejection capability ensuring clean power delivery for sensitive analog circuits

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

• Battery-powered portable electronic devices requiring efficient power management
• RF modules and communication equipment needing low-noise stable voltage supplies
• Microcontroller systems requiring precise fixed voltage rails

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

Verify the specific suffix 'D' indicates the correct output voltage variant during procurement. Confirm that the SOT-23-5 package matches your PCB footprint requirements. Ensure the operating temperature range aligns with your environmental specifications. Check for RoHS compliance documentation if required by your manufacturing standards. Validate that the reel packaging quantity meets your production volume needs.

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

Select this component when a fixed 2V output is required with moderate current demands up to 300mA. Consider the 1V dropout voltage for applications where input voltage headroom is limited. The 50µA quiescent current makes it suitable for battery-operated devices. Verify that the 16V maximum input voltage covers your system's supply range. The reverse current protection feature is critical if the input may be disconnected while the output remains powered.

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

This part belongs to the R1191N series of LDO regulators from Nisshinbo Micro Devices. The series is characterized by its eco-function capability and reverse current protection. Other variants in the series offer different fixed output voltages while sharing similar electrical characteristics and package options. The manufacturer integrates these features into small surface-mount packages for space-constrained designs.

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

Direct substitutes include other R1191N series parts with identical 2V output specifications. Verify pin compatibility and thermal performance before swapping. Alternative manufacturers may offer similar LDOs but require validation of dropout voltage and PSRR specs.