STMicroelectronics

L78L33ACZ-AP  

Linear & Switching Voltage Regulators

L78L33ACZ-AP Description

The L78L33ACZ-AP from STMicroelectronics is a fixed 3.3V linear voltage regulator designed for low-power applications. With a maximum input voltage of 30V and an output current capability of 100mA, it provides stable voltage regulation for a wide range of electronic circuits. This positive-output regulator is housed in a TO-92-3 package, making it suitable for through-hole mounting. It operates within a 0°C to 125°C temperature range, ensuring reliability in harsh environments. The device features over-current, over-temperature, and short-circuit protection, enhancing system durability. Its low quiescent current (5.5mA) and 49dB PSRR (120Hz) make it ideal for noise-sensitive applications.

L78L33ACZ-AP Features

• Fixed 3.3V Output: Ensures consistent voltage regulation without adjustable components.
• Wide Input Range (Up to 30V): Accommodates varying input sources.
• Low Quiescent Current (5.5mA): Minimizes power consumption in standby modes.
• High PSRR (49dB at 120Hz): Effectively suppresses input ripple and noise.
• Robust Protection: Includes over-current, over-temperature, and short-circuit safeguards.
• TO-92-3 Package: Compact and easy to integrate into through-hole designs.
• RoHS3 & REACH Compliant: Meets environmental and safety standards.

L78L33ACZ-AP Applications

• Consumer Electronics: Powering microcontrollers, sensors, and low-power ICs in devices like remote controls and smart home systems.
• Industrial Systems: Providing stable voltage to control circuits, PLCs, and instrumentation.
• Automotive Electronics: Suitable for non-critical automotive applications requiring reliable 3.3V supply.
• Battery-Powered Devices: Ideal for portable electronics due to low quiescent current and efficient regulation.
• Embedded Systems: Used in development boards and prototyping circuits for consistent voltage delivery.

Conclusion of L78L33ACZ-AP

The L78L33ACZ-AP is a versatile, cost-effective linear regulator offering high stability, low noise, and robust protection features. Its wide input range, compact package, and compliance with environmental standards make it a preferred choice for designers in consumer, industrial, and automotive applications. Whether for prototyping or mass production, this regulator delivers reliable performance in demanding conditions, ensuring long-term system integrity.

L78L33ACZ-AP Documents

Download datasheets and manufacturer documentation for L78L33ACZ-AP

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