LD2980CU50TR

$1.12

Description：IC REG LINEAR 5V 50MA SOT89-3
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:873a0aa5a07a Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 5V 50MA SOT89-3
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：16V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.225V @ 50mA
Current - Output：50mA
Current - Quiescent (Iq)：150 µA
Current - Supply (Max)：1.2 mA
PSRR：63dB (1kHz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-243AA
Supplier Device Package：SOT-89-3
Grade：-
Qualification：-

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LD2980CU50TR

Overview

The LD2980CU50TR is a positive fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 5.0 V output with a maximum current capability of 50 mA. The device operates within an input voltage range up to 16 V and features a typical dropout voltage of 0.12 V at full load. Quiescent current is typically 80 µA in active mode, dropping below 1 µA in shutdown mode when the inhibit pin is activated. It includes internal thermal overload and short-circuit protection.

Feature Summary

Ultra-low dropout voltage performance suitable for battery-powered systems
Logic-controlled electronic shutdown via TTL-compatible inhibit pin
Stable operation with low ESR ceramic output capacitors
Integrated thermal and current limiting protection

Applications

Battery-powered portable electronics
Low noise power supply regulation
Post-regulation for switching power supplies
Industrial control board local regulation

Procurement Notes

Verify the specific suffix 'CU50' against the manufacturer's official datasheet to confirm the 5.0 V fixed output and SOT-23-5 package configuration. Ensure compatibility with low ESR ceramic capacitors as specified in the design guidelines. Confirm RoHS compliance status for the specific production batch prior to integration into final assemblies.

Selection Notes

Select this component for applications requiring precise 5 V regulation with minimal voltage drop under light loads. The low quiescent current makes it suitable for energy-efficient designs. Verify that the required output current does not exceed 50 mA and that the input voltage remains within the 16 V maximum limit. Consider the SOT-23-5 package constraints for thermal management in dense PCB layouts.

Part Context

This part belongs to the LD2980 series of ultra-low drop voltage regulators designed for low noise and low power consumption. The series is characterized by its ability to work efficiently with low ESR ceramic capacitors, distinguishing it from older LDOs requiring tantalum or aluminum electrolytic capacitors for stability.