STMicroelectronics

LE40CZ

LE40CZ Description

The LE40CZ is a linear voltage regulator designed by STMicroelectronics, a leading manufacturer in the power management integrated circuit (PMIC) category. This IC regulator offers a fixed output voltage of 4V and can deliver a maximum output current of 100mA. It is housed in a TO92-3 package, making it suitable for through-hole mounting. The regulator is designed to operate with an input voltage ranging up to 18V, ensuring compatibility with a variety of power sources.

LE40CZ Features

• Fixed Output Voltage: The LE40CZ provides a stable 4V output, ensuring consistent power delivery to connected devices.
• High Input Voltage Range: With a maximum input voltage of 18V, the regulator can handle a wide range of input sources, enhancing its versatility.
• Low Dropout Voltage: The maximum dropout voltage is only 0.5V at 100mA, which is advantageous for applications where the input voltage is close to the output voltage.
• Low Quiescent Current: The regulator operates with a quiescent current of just 1mA, making it energy-efficient and suitable for battery-powered applications.
• Protection Features: The LE40CZ includes over-current and over-temperature protection, safeguarding both the regulator and connected components from damage.
• High Power Supply Rejection Ratio (PSRR): The PSRR ranges from 78dB at 120Hz to 60dB at 10kHz, ensuring minimal noise and ripple in the output voltage.
• Compliance and Packaging: The regulator is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It is available in bulk packaging, facilitating convenient storage and handling.

LE40CZ Applications

The LE40CZ is ideal for a range of applications that require a stable and efficient power supply. Some specific use cases include:

• Consumer Electronics: Ideal for powering small electronic devices such as portable audio players, digital cameras, and remote controls.
• Industrial Equipment: Suitable for low-power industrial sensors and control modules where reliability and efficiency are paramount.
• Telecommunications: Can be used in low-power communication devices and peripherals, ensuring stable operation under varying input voltage conditions.
• Medical Devices: Applicable in medical monitoring equipment where low noise and high reliability are critical.

Conclusion of LE40CZ

The LE40CZ from STMicroelectronics is a robust and versatile linear voltage regulator designed to meet the demands of modern electronics. Its combination of a fixed 4V output, low dropout voltage, and comprehensive protection features make it an excellent choice for applications requiring stable and efficient power management. Despite its obsolete status, the LE40CZ remains a reliable option for designers and engineers looking for a dependable power solution.