RP101K251B-TR

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

The RP101K251B-TR is a low-dropout (LDO) voltage regulator manufactured by Nisshinbo Micro Devices. It provides a fixed output voltage of 2.5V with high accuracy. The device operates with an input voltage range up to 6.0V and delivers a maximum output current of 150mA. Key electrical characteristics include a typical dropout voltage of 180mV at full load and a quiescent current of 35µA. It features built-in protection mechanisms such as thermal shutdown and current limit.

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

• Fixed 2.5V output voltage with high precision regulation
• Low dropout operation for efficient power management
• Integrated thermal shutdown and over-current protection
• Stable performance with small ceramic capacitors

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

• Portable battery-powered devices requiring stable low-voltage rails
• Embedded systems needing precise reference voltages
• IoT sensors and modules with strict power constraints

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

Verify the exact suffix 'B-TR' corresponds to the specific tape-and-reel packaging and temperature grade required for your assembly process. Confirm that the 2.5V output aligns with your system's voltage requirements, as this is a fixed-output variant. Ensure compatibility with your PCB layout guidelines regarding capacitor placement for stability.

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

Select this component when a fixed 2.5V supply is needed with minimal external components. It is suitable for applications prioritizing low quiescent current and compact footprint. Consider the 150mA current limit and dropout voltage specifications against your load profile and input voltage variations to ensure adequate headroom and efficiency.

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

This part belongs to the RP101 series of LDO regulators from Nisshinbo Micro Devices. The series is designed for portable electronics, offering high reliability and low noise. The RP101K251B-TR specifically denotes the 2.5V output version in a compact SOT-25 or similar small package, optimized for space-constrained designs.

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

Check for direct pin-compatible alternatives within the same series offering different output voltages if 2.5V is unsuitable. Verify that substitute parts maintain similar dropout characteristics and current capabilities. Ensure any replacement supports the same operating temperature range and packaging format for seamless integration.