R1172N221D-TR-FE

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

The R1172N221D-TR-FE is a fixed-output low dropout (LDO) voltage regulator manufactured by Nisshinbo Micro Devices. It belongs to the R1172N series and provides a nominal output voltage of 2.2 V with a maximum continuous output current of 1 A. The device utilizes an SOT-23-5 surface-mount package and operates within a junction temperature range of -40°C to +85°C. Key electrical characteristics include a typical ripple rejection ratio of 70 dB, a line regulation of 0.05%/V, and a power dissipation capability of 420 mW. The quiescent operating current is specified at 60 µA.

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

• CMOS-based LDO architecture for efficient power management
• Fixed output voltage configuration for stable supply rails
• High ripple rejection performance for noise-sensitive applications

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

• Portable electronic devices requiring low quiescent current
• Battery-powered systems needing efficient voltage regulation
• Embedded circuits requiring stable 2.2 V logic supplies

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

Verify the specific suffix codes against the official datasheet to confirm pinout compatibility and thermal specifications. Ensure that the ordering quantity aligns with the manufacturer's standard reel packaging requirements. Cross-reference the RoHS compliance status with current regulatory standards before finalizing procurement decisions.

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

Select this component when a fixed 2.2 V output is required with high current capability in a compact footprint. Consider the SOT-23-5 package constraints for thermal management under full load conditions. Evaluate the 60 µA quiescent current against system standby power budgets to ensure optimal efficiency.

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

This part is a member of the R1172N family of low dropout regulators designed for general-purpose power management. The series offers various fixed output voltages to support diverse digital and analog circuit requirements. The R1172N221D variant specifically targets applications needing a 2.2 V rail with robust transient response and low noise characteristics.

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

Consult the official Nisshinbo Micro Devices replacement guide for verified cross-references. Ensure any substitute part matches the SOT-23-5 package and maintains equivalent electrical parameters.