LF33ABDT-TR

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LF33ABDT-TR

IC REG LINEAR 3.3V 500MA DPAK

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 16V
Voltage-Output(Min/Fixed) 3.3V
VoltageDropout(Max) 0.7V @ 500mA
Current-Output 500mA
Current-Quiescent(Iq) 1 mA
Current-Supply(Max) 12 mA
PSRR 80dB ~ 65dB (120Hz ~ 65dB)
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case TO-252-3, DPak (2 Leads + Tab), SC-63

概述

Description

The LF33ABDT-TR is a low-dropout (LDO) linear voltage regulator designed for applications requiring a stable and regulated output voltage. It is part of the LF33 series, which is known for its low dropout voltage of approximately 0.45V at the full load of 3A, making it efficient for powering circuits from a higher voltage source. The device typically offers a fixed output voltage, commonly 3.3V, and can handle various input voltages, typically up to 20V.
Key features include thermal shutdown, current limiting, and short circuit protection, enhancing its reliability in demanding conditions. The LF33ABDT-TR is packaged in a D2PAK, suitable for surface-mount applications, which provides good thermal performance due to its larger thermal pad.
Applications of the LF33ABDT-TR include powering microcontrollers, microprocessors, and other digital logic circuits where a stable 3.3V supply is essential. Its efficiency and protective features make it popular in consumer electronics, industrial equipment, and telecommunications.

Features

The LF33ABDT-TR is a low-dropout, linear voltage regulator that provides a fixed output voltage of 3.3V. It is designed for applications requiring a stable and regulated power supply with a low input-to-output voltage differential. Here are some key features:
1. Low Dropout Voltage: The device typically exhibits a dropout voltage of 1.2V at 3A load current, which allows it to maintain regulation with minimal headroom.
2. Output Current: It is capable of delivering up to 3A of output current, making it suitable for high-power applications.
3. Thermal Protection: The regulator includes thermal shutdown protection that prevents damage due to overheating.
4. Output Voltage Precision: The output voltage is maintained with high accuracy, typically ±1% over temperature and load variations.
5. Short-Circuit Protection: It is equipped with a current limiting feature to protect against overload conditions.
6. Operating Temperature Range: The device operates within a temperature range of -40°C to +125°C, which suits various environmental conditions.
7. Package: It is available in a surface-mount D2PAK package, facilitating easy integration into PCB designs.
These features make the LF33ABDT-TR well-suited for powering microprocessors, microcontrollers, and other digital circuits.

Package

The LF33ABDT-TR is a voltage regulator packaged in a D²PAK surface-mount type. It's designed for efficient power management in electronic devices.

Pinout

The LF33ABDT-TR is a low-dropout (LDO) linear voltage regulator designed to provide a stable 3.3V output. It typically comes in a DPAK (TO-252) package, which has 3 pins. The pin functions are as follows:
1. Input (Vin): This pin receives the input voltage, which should be higher than the regulated output voltage for proper operation.
2. Ground (GND): This pin serves as the common ground reference for the input and output voltages.
3. Output (Vout): This pin provides the regulated output voltage of 3.3V.
The LF33ABDT-TR is designed for applications requiring a stable voltage supply and is capable of delivering up to 3 Amps of output current with a low dropout voltage, making it suitable for use in various electronic circuits.

Manufacturer

The LF33ABDT-TR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a broad range of semiconductor products. These products are used in various applications, including automotive, industrial, personal electronics, and communication equipment. The company is known for its innovation and focus on technology solutions that drive efficient energy use and enable smarter devices. STMicroelectronics operates globally, serving customers worldwide with a diverse portfolio of products and services.

Application

The LF33ABDT-TR is a low-dropout voltage regulator commonly used in applications requiring stable and precise voltage regulation. Its typical application areas include battery-powered devices, microcontroller power supplies, automotive electronics, and portable communication equipment. It is suited for systems that need a reliable power source with low noise and high efficiency.

Equivalent

The LF33ABDT-TR is a low-dropout (LDO) voltage regulator. Equivalent products include:
1. LM1117-3.3 by Texas Instruments
2. MIC5205-3.3 by Microchip Technology
3. NCP1117-3.3 by ON Semiconductor
4. AMS1117-3.3 by Advanced Monolithic Systems
These alternatives offer similar voltage regulation capabilities and are suited for comparable applications. Always check the datasheets for compatibility in terms of electrical characteristics and package type.

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