STMicroelectronics

L78L33ABD-TR  

Linear & Switching Voltage Regulators

The L78L33ABD-TR is a linear voltage regulator integrated circuit (IC) manufactured by STMicroelectronics. It is designed to provide a stable and reliable voltage output for various electronic applications. Here is a brief description of the model, its features, and applications:

Description:

The L78L33ABD-TR is a member of the L78 family of linear voltage regulators, which are designed to provide a regulated output voltage from an unregulated input voltage source, such as a battery or a power supply. This particular model is a low-dropout (LDO) voltage regulator, which means it can operate efficiently even with a small input-to-output voltage differential.

Features:

1. Output Voltage: The L78L33ABD-TR provides a fixed output voltage of 3.3V.
2. Input Voltage Range: It can accept input voltages ranging from 4V to 35V, making it suitable for a wide range of power sources.
3. Low Dropout Voltage: The low dropout voltage characteristic allows the regulator to maintain a stable output voltage even when the input voltage is close to the output voltage.
4. Output Current: The regulator can supply a continuous output current of up to 100mA.
5. Thermal Protection: It features internal thermal shutdown protection to prevent damage due to overheating.
6. Package Type: The L78L33ABD-TR comes in a TO-252 package, which is a standard surface-mount package for linear voltage regulators.
7. Wide Operating Temperature Range: It operates over a wide temperature range of -40°C to +125°C, making it suitable for various environmental conditions.

Applications:

The L78L33ABD-TR is commonly used in a variety of electronic applications where a stable 3.3V output is required. Some of the typical applications include:

1. Power supply for microcontrollers and other digital circuits.
2. Voltage regulation in battery-powered devices, such as smartphones, tablets, and portable electronics.
3. Voltage conversion in power supply circuits for providing a stable output voltage to sensitive electronic components.
4. Voltage regulation in automotive and industrial electronics, where reliability and stability are crucial.
5. Use in test and measurement equipment, where precise voltage regulation is essential.

In summary, the L78L33ABD-TR is a versatile and reliable linear voltage regulator that provides a stable 3.3V output for a wide range of electronic applications. Its low dropout voltage, thermal protection, and wide operating temperature range make it a popular choice for designers looking for a robust and efficient voltage regulation solution.

L78L33ABD-TR Documents

Download datasheets and manufacturer documentation for L78L33ABD-TR

Datasheets :

L78L Datasheet      

PCN Packaging :

Cover Tape 07/Sep/2019      

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HTML Datasheet :

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