STMicroelectronics LD2980CM33TR Linear Voltage Regulator 3.3V 50mA
- Brand: STMicroelectronics
- Product Code: LD2980CM33TR
- Availability: In Stock
$0.14
- Ex Tax: $0.14
Introducing the STMicroelectronics LD2980CM33TR Linear Voltage Regulator
In today's rapidly evolving electronics landscape, precision and reliability are paramount. The LD2980CM33TR from STMicroelectronics emerges as a critical component for engineers and designers seeking efficient voltage regulation in compact applications. This linear regulator delivers a fixed 3.3V output with exceptional stability, making it ideal for powering sensitive electronics in industrial, automotive, and consumer devices.
Key Features and Technical Excellence
Engineered with advanced CMOS technology, the LD2980CM33TR combines low quiescent current (150µA) with high power efficiency. Its 16V maximum input voltage capability ensures compatibility with diverse power sources while maintaining a minimal dropout voltage of just 0.225V at 50mA load. This performance profile enables reliable operation across challenging environments with temperature ranges from -40°C to 125°C.
Technical highlights include:
| Parameter | Specification |
|---|---|
| Output Voltage | 3.3V Fixed |
| Output Current | 50mA Max |
| Dropout Voltage | 225mV @ 50mA |
| PSRR | 63dB at 1kHz |
| Package | SOT-23-5 |
Design Advantages
The SOT-23-5 package provides significant space savings for modern PCB designs while maintaining excellent thermal performance. Its integrated protection features - including over-current and over-temperature safeguards - ensure robust operation in demanding conditions. The enable control function allows precise power management, making it perfect for battery-powered devices where energy conservation is critical.
This regulator's 63dB power supply rejection ratio (PSRR) at 1kHz significantly reduces noise from power sources, ensuring clean power delivery to downstream components. The 1.2mA maximum supply current further enhances efficiency, particularly in low-power applications.
Applications and Use Cases
Engineers in various fields leverage the LD2980CM33TR for:
- I²C and SPI interface power supplies
- Portable medical devices
- Industrial sensor systems
- Automotive telematics modules
- Smart home automation equipment
Its automotive-grade temperature rating (-40°C to 125°C) makes it particularly suitable for vehicle electronics systems requiring ASIL-rated components. The surface-mount packaging simplifies automated assembly processes while maintaining serviceability.
Technical Considerations
When implementing this regulator in circuit designs, engineers should consider:
- Input capacitor selection (recommended 1µF ceramic)
- Thermal vias in PCB layout
- Noise-sensitive applications requiring additional filtering
- Load transient response requirements
Compared to competitors' offerings, the LD2980CM33TR stands out with its combination of ultra-low dropout voltage and high PSRR in such a compact package. This makes it particularly effective in noise-sensitive RF applications and precision analog circuits.
Why Choose STMicroelectronics?
As a global semiconductor leader with over 30 years' experience, STMicroelectronics delivers components that combine innovation with proven reliability. Their regulators are engineered to meet rigorous AEC-Q100 standards for automotive applications and comply with RoHS environmental directives. The LD2980CM33TR exemplifies their commitment to delivering energy-efficient solutions that reduce system power consumption by up to 30% compared to traditional regulators.
Tags: Low-Dropout Regulator, Surface Mount IC, Industrial Power Management, Automotive Electronics, Compact Voltage Regulator