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L78L33ABD-TR

Name: L78L33ABD-TR
Rating: 4.7 (12 reviews)

IC REG LINEAR 3.3V 100MA 8-SOIC

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資料表 L78L33ABD-TR DataSheet
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規格

Part Status	Active
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	30V
Voltage - Output (Min/Fixed)	3.3V
Current - Output	100mA
Current - Quiescent (Iq)	5.5 mA
Current - Supply (Max)	6 mA
PSRR	49dB (120Hz)
Protection Features	Over Current, Over Temperature, Short Circuit
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Base Product Number	L78L33

概述

Description

The L78L33ABD-TR is a low-dropout (LDO) linear voltage regulator that provides a fixed output voltage of 3.3V. It is designed for applications requiring low power consumption and compact size, making it ideal for battery-operated devices and other low-voltage electronic circuits. The device typically supports input voltages ranging from 4.75V to 20V and delivers a maximum output current of 100mA.
Key features include thermal overload protection, short-circuit protection, and a low dropout voltage that ensures efficient operation even with minimal headroom between input and output voltages. The L78L33ABD-TR is available in a TO-92 package, which facilitates easy integration into various circuit designs while maintaining a small footprint.
It’s commonly used in portable electronics, microcontrollers, and sensor applications, where stable voltage regulation is crucial for performance. Overall, the L78L33ABD-TR is a reliable choice for designers seeking efficient voltage regulation in small-scale electronic projects.

Features

The L78L33ABD-TR is a low-dropout (LDO) linear voltage regulator that provides a fixed output voltage of 3.3V. It is designed for low current applications, delivering up to 100 mA of output current. Key features include:
1. Input Voltage Range: Typically operates with input voltages from 4.75V to 30V.
2. Output Voltage: Fixed output of 3.3V with a tolerance of ±5%.
3. Dropout Voltage: Low dropout voltage, typically around 1.2V at full load, ensuring operation even with minimal voltage headroom.
4. Thermal Protection: Includes thermal shutdown to prevent damage in case of overheating.
5. Short-Circuit Protection: Provides current limiting to protect against short circuit conditions.
6. Package: Available in a compact TO-92 package, suitable for space-constrained applications.
7. Applications: Ideal for use in portable devices, sensors, and other low-power electronics.
This regulator is well-suited for battery-powered applications due to its efficiency and low operational current.

Package

The L78L33ABD-TR is packaged in a TO-92 casing, which is a small, cylindrical plastic package commonly used for low-power voltage regulators and similar devices.

Pinout

The L78L33ABD-TR is a voltage regulator from the L78L series, specifically designed to provide a fixed output voltage of 3.3V. It has a pin count of 3, with the following functions:
1. Input Pin (Vin): This pin receives the input voltage supply, typically ranging from 5V to 15V.
2. Ground Pin (GND): This pin serves as the ground reference for the circuit.
3. Output Pin (Vout): This pin delivers the regulated output voltage of 3.3V.
The L78L33ABD-TR is commonly used in low-power applications, facilitating stable voltage supply for microcontrollers, sensors, and other electronic components needing a steady 3.3V power source. It features thermal overload protection and short-circuit protection, making it a reliable choice for many electronic designs.

Manufacturer

The L78L33ABD-TR is manufactured by STMicroelectronics, a global semiconductor company. STMicroelectronics specializes in the design, development, and production of a wide range of semiconductor solutions, including microcontrollers, sensors, and power management devices. The company serves various markets, including automotive, industrial, personal electronics, and communications. Headquartered in Geneva, Switzerland, STMicroelectronics is known for its commitment to innovation and sustainability in the semiconductor industry.

Application

The L78L33ABD-TR is a low-dropout linear voltage regulator designed to provide a stable 3.3V output from a higher voltage input. Its application areas include powering microcontrollers, sensors, and other low-power digital devices, as well as providing voltage stability in battery-operated equipment, telecommunications, and automotive electronics. It is ideal for applications requiring low noise and minimal heat generation.

Equivalent

The L78L33ABD-TR is a low dropout voltage regulator (LDO) that outputs 3.3V. Equivalent products include the LM1117-3.3, MCP1700-3302E, AMS1117-3.3, and LT1763-3.3. Ensure to check specifications like output current, dropout voltage, and package type for compatibility in your application.