LDK220U33R Linear Voltage Regulator 3.3V 200mA SOT-89 STMicroelectronics

Advanced Voltage Regulation for Modern Electronics

In today's demanding electronic environments, precision power management remains critical for system reliability. The LDK220U33R linear voltage regulator from STMicroelectronics delivers exceptional performance in a compact SOT-89 package, providing engineers with a robust solution for voltage stabilization requirements. This fixed-output 3.3V regulator combines low dropout operation with comprehensive protection features, making it ideal for both industrial and consumer applications.

Key Performance Specifications

Engineered for efficiency, this regulator maintains stable output even under varying load conditions. Its 55dB PSRR (120Hz-10kHz) ensures noise-sensitive circuits receive clean power, while the built-in enable control allows for power sequencing in complex systems. The integrated overcurrent and thermal protection mechanisms provide fail-safe operation in demanding environments.

Design Flexibility and Reliability

Operating across the full industrial temperature range (-40°C to 125°C), the LDK220U33R accommodates thermal variations in automotive, industrial automation, and embedded systems. The SOT-89 package offers excellent thermal dissipation while maintaining PCB space efficiency. With tape & reel packaging for automated assembly, this component streamlines manufacturing processes while maintaining RoHS compliance.

This voltage regulator excels in applications requiring stable 3.3V supply for microcontrollers, sensors, and communication interfaces. Its low quiescent current (100µA max) makes it particularly suitable for battery-powered devices where power conservation is critical. The device's stability across wide operating conditions reduces design complexity by eliminating external compensation requirements.

Tags: Voltage Regulator, Linear Regulator, SOT-89 Package, Low Dropout Regulator, Industrial Electronics