STMicroelectronics

LE30CZ

LE30CZ Description

The LE30CZ is a linear regulator IC designed by STMicroelectronics, featuring a fixed output voltage of 3V and a maximum output current of 100mA. This device is housed in a TO92-3 package, making it suitable for through-hole mounting. Despite its small form factor, the LE30CZ offers robust performance with a maximum dropout voltage of 0.5V at 100mA, ensuring efficient operation even under varying load conditions. The regulator is designed to operate with an input voltage up to 18V, providing a wide input range for diverse applications. It also features low quiescent current (1mA) and low supply current (3mA max), making it energy-efficient. The LE30CZ includes over-current and over-temperature protection, enhancing its reliability and safety. Although it is marked as obsolete, it remains a viable option for applications requiring a simple, reliable power solution.

LE30CZ Features

• Fixed Output Voltage: 3V, ensuring stable power supply for various electronic circuits.
• High Efficiency: With a maximum dropout voltage of 0.5V at 100mA, the LE30CZ minimizes power loss and heat generation.
• Low Quiescent Current: 1mA, contributing to energy efficiency and prolonged battery life in portable devices.
• Wide Input Voltage Range: Up to 18V, providing flexibility in power source selection.
• Protection Features: Over-current and over-temperature protection safeguard the regulator and connected circuits from damage.
• Low Supply Current: 3mA max, reducing power consumption during operation.
• High PSRR: 81dB to 60dB (120Hz to 10kHz), ensuring excellent noise rejection and stable output voltage.
• Compliance: REACH Unaffected and ROHS3 Compliant, meeting environmental and safety standards.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for various environmental conditions.
• Mounting Type: Through-hole, facilitating easy integration into PCB designs.

LE30CZ Applications

The LE30CZ is ideal for a range of applications where a stable, low-voltage power supply is required. Its compact size and efficient performance make it suitable for:

• Portable Devices: Powering small electronic gadgets and handheld devices that require a stable 3V supply.
• Consumer Electronics: Providing reliable power to low-power consumer electronics, such as radios, calculators, and remote controls.
• Industrial Equipment: Used in low-power industrial applications where a fixed voltage supply is necessary.
• Battery-Powered Systems: Ideal for applications where battery life is critical, thanks to its low quiescent and supply current.
• Automotive Applications: Suitable for low-power automotive electronics, such as dashboard indicators and sensors.

Conclusion of LE30CZ

The LE30CZ from STMicroelectronics is a reliable linear regulator IC that offers a stable 3V output with a maximum current of 100mA. Its low dropout voltage, low quiescent current, and wide input voltage range make it an efficient and versatile power solution. The inclusion of over-current and over-temperature protection ensures robustness and reliability in various applications. Although marked as obsolete, the LE30CZ remains a valuable component for applications requiring a simple, efficient, and stable power supply. Its compliance with environmental and safety standards further enhances its suitability for modern electronics.