RP103K151B-TR

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

The RP103K151B-TR is a CMOS-based low dropout (LDO) voltage regulator from the Nisshinbo RP103K series. It provides a fixed 1.5 V output with a maximum load current of 150 mA. The device operates within an input voltage range of 1.7 V to 5.25 V and features a typical power supply rejection ratio (PSRR) of 75 dB. Quiescent current is specified at 36 uA, with line regulation at 0.02 %/V and load regulation at 10 mV. Voltage accuracy is maintained at 1%. Thermal performance includes a power dissipation rating of 400 mW. Dropout voltage ranges from 210 mV to 270 mV depending on conditions.

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

• CMOS LDO architecture for efficient power management
• High ripple rejection capability via 75 dB PSRR
• Fixed output voltage configuration for stable supply rails

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

• Portable electronic devices requiring low quiescent current
• Battery-powered systems needing stable 1.5 V logic levels
• General purpose linear regulation in consumer electronics

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

Verify the specific suffix and package marking against the official datasheet to ensure compatibility with design requirements. Confirm RoHS compliance status and environmental documentation availability prior to integration. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity and traceability. Ensure thermal management strategies align with the 400 mW power dissipation limit under expected operating conditions.

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

Select this component when a fixed 1.5 V rail is required with minimal static current consumption. The 150 mA output capacity suits moderate load applications. High PSRR makes it suitable for noise-sensitive circuits. Compare dropout characteristics against input voltage variations to ensure regulation stability. Consider the DFN-PLP-1010-4 package constraints for PCB layout and thermal relief.

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

This part belongs to the RP103K series of low dropout regulators manufactured by Nisshinbo Micro Devices. The series focuses on low power consumption and high ripple rejection for portable applications. The RP103K151B-TR specifically denotes the 1.5 V fixed output variant in reel packaging. It shares architectural similarities with other RP103K models differing primarily in output voltage and package options.

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

Direct substitutes include other RP103K series variants with matching 1.5 V output and 150 mA current ratings. Verify pinout compatibility and thermal resistance values before substitution. Alternative packages such as SC-82AB-4 may require footprint adaptation.