LDK120M33R Linear Voltage Regulator 3.3V 200mA SOT23-5
- Brand: STMicroelectronics
- Product Code: LDK120M33R
- Availability: In Stock
$0.16
- Ex Tax: $0.16
Advanced Low-Dropout Voltage Regulation with LDK120M33R
In modern electronics design, precision power management remains a critical challenge across industries. The LDK120M33R linear voltage regulator from STMicroelectronics emerges as a sophisticated solution for applications demanding stable 3.3V output at 200mA current capacity. This SOT23-5 packaged device combines low dropout performance with comprehensive protection features, making it ideal for battery-powered systems, industrial controllers, and portable measurement equipment.
Technical Excellence in Compact Form
Operating within a 1.5V to 5.5V input range, this fixed-output regulator maintains exceptional stability through its 0.3V dropout voltage at maximum load. Its 55dB PSRR (120Hz-10kHz) specification ensures minimal noise interference in sensitive analog circuits, while the 60µA quiescent current contributes to extended battery life in mobile applications. The device's thermal shutdown and overcurrent protection mechanisms guarantee reliability even under adverse operating conditions.
Engineers will appreciate the integrated enable function that facilitates power sequencing in complex systems. The SOT23-5 package strikes an optimal balance between space efficiency and thermal performance, supporting surface-mount assembly processes. With operating temperature range from -40°C to 125°C, the component meets automotive and industrial environmental requirements.
| Parameter | Specification |
|---|---|
| Output Voltage | 3.3V Fixed |
| Max Output Current | 200mA |
| Dropout Voltage | 300mV @ 200mA |
| PSRR | 55dB (120Hz-10kHz) |
| Quiescent Current | 60µA |
Design Flexibility Across Applications
The LDK120M33R's versatility shines in diverse implementations: from powering microcontrollers in IoT devices to regulating voltage in precision sensor interfaces. Its low noise characteristics benefit RF transceivers and audio circuits, while the compact footprint supports high-density PCB layouts. The device's stability with ceramic capacitors simplifies external component selection, reducing overall BOM costs.
Key advantages include:
- Space-saving SOT23-5 packaging
- Active overtemperature protection
- Automotive temperature compliance
- Low noise for precision analog circuits
- Cost-effective tape & reel manufacturing
Reliability and Compliance
STMicroelectronics' rigorous quality control ensures this regulator meets RoHS and REACH standards while maintaining parametric stability across production batches. The device's robust design withstands common industrial stress factors including voltage spikes, thermal cycling, and mechanical vibration. Designers can implement it with confidence in both commercial and extended temperature environments.
Tags: Low Dropout Regulator, Fixed Voltage Regulator, SOT23 Package, STMicroelectronics IC, Linear Power Management