Microchip Technology

LX8213-33ISE-TR

LX8213-33ISE-TR Description

The LX8213-33ISE-TR is a linear positive voltage regulator designed by Microchip Technology, offering a fixed 3.3V output voltage with a maximum output current of 300mA. This regulator is housed in a surface-mount SOT23 package, making it suitable for compact and space-constrained applications. The device features a maximum input voltage of 6V and a low dropout voltage of 0.3V at 300mA, ensuring efficient power conversion even under low input-to-output voltage differentials.

LX8213-33ISE-TR Features

• Low Quiescent Current: The regulator maintains a low quiescent current of 90 µA, which is crucial for battery-powered and low-power applications, minimizing power consumption during standby or low-load conditions.
• High PSRR: With a power supply rejection ratio (PSRR) ranging from 68dB at 100Hz to 54dB at 10kHz, the LX8213-33ISE-TR effectively filters out noise from the input power supply, ensuring a clean and stable output voltage.
• Enable Control Feature: The regulator includes an enable pin, allowing for dynamic control of the output voltage, which can be used to turn the regulator on and off or to manage power sequencing in complex systems.
• Protection Features: The LX8213-33ISE-TR incorporates over-current, over-temperature, and short-circuit protection mechanisms, safeguarding the regulator and downstream components from potential damage due to abnormal operating conditions.
• RoHS3 Compliant: The regulator meets the stringent environmental standards of RoHS3, ensuring it is free from hazardous substances and suitable for environmentally conscious designs.
• Moisture Sensitivity Level (MSL): With an MSL rating of 3 (168 hours), the LX8213-33ISE-TR is suitable for manufacturing processes that require protection from moisture, ensuring reliability during assembly and storage.

LX8213-33ISE-TR Applications

The LX8213-33ISE-TR is ideal for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current and high PSRR make this regulator suitable for portable electronics, such as smartphones, tablets, and wearable devices, where power efficiency and noise reduction are critical.
• Embedded Systems: In embedded systems, the regulator's enable feature and protection mechanisms provide flexibility and reliability, making it a robust choice for microcontroller power supplies.
• Industrial Control Systems: The regulator's compact size and surface-mount package make it suitable for space-constrained industrial applications, such as PLCs and automation controllers.
• Consumer Electronics: The regulator's ability to handle short circuits and over-current conditions makes it a reliable choice for consumer electronics, ensuring safe operation even under fault conditions.

Conclusion of LX8213-33ISE-TR

The LX8213-33ISE-TR is a versatile and reliable linear voltage regulator, offering a combination of low quiescent current, high PSRR, and comprehensive protection features. Its compact SOT23 package and surface-mount design make it suitable for a wide range of applications, from portable devices to industrial systems. While the product is marked as obsolete, it remains a valuable component for existing designs and systems where its unique features and performance benefits are still relevant. For new designs, engineers may consider exploring alternative regulators from Microchip Technology that offer similar or enhanced capabilities.