LM1085ISX-3.3

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LM1085ISX-3.3

IC REG LIN 3.3V 3A DDPAK/TO263-3

  • Fabricant
  • Mfr. Partie #LM1085ISX-3.3
  • Paquet TO263-3
  • Fiche de données
  • En stock7025

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Spécifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Not For New Designs
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 27V
Voltage-Output(Min/Fixed) 3.3V
VoltageDropout(Max) 1.5V @ 3A
Current-Output 3A
Current-Quiescent(Iq) 10 mA
PSRR 72dB (120Hz)
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case TO-263-4, D²Pak (3 Leads + Tab), TO-263AA

Vue d'ensemble

Description

The LM1085ISX-3.3 is a voltage regulator manufactured by Texas Instruments. It is part of the LM1085 series, known for its low dropout (LDO) voltage regulation capabilities. The "3.3" in its name indicates that it outputs a fixed 3.3 volts. This component is designed to provide a stable and reliable voltage supply, with a maximum output current of 3A. The "ISX" denotes the specific packaging and thermal characteristics.
The key feature of the LM1085 series is its low dropout voltage, typically around 1.5V at full load, which makes it efficient for applications where the input and output voltages are close. This regulator is equipped with internal current limiting, thermal shutdown, and safe area compensation, ensuring protection against overload conditions.
Common applications for the LM1085ISX-3.3 include powering microcontrollers, microprocessors, memory circuits, and other digital logic devices in both consumer electronics and industrial products. Its reliable performance in managing output voltage makes it a preferred choice for systems requiring efficient power supply solutions.

Features

The LM1085ISX-3.3 is a voltage regulator featuring a 3.3V fixed output. It is part of the LM1085 series, known for its low dropout (LDO) performance. Key features include:
1. Output Current: Capable of delivering up to 3A of output current, making it suitable for high-power applications.
2. Low Dropout Voltage: Provides a dropout voltage of approximately 1.5V at full load, improving efficiency.
3. Thermal Protection: Equipped with internal thermal shutdown to prevent overheating.
4. Current Limiting: Includes current limiting to protect against overcurrent conditions.
5. Stability: Requires only a small output capacitor for stability, reducing board space and cost.
6. Precision: Offers a maximum output voltage tolerance of ±1% under specified conditions, ensuring precise voltage regulation.
7. Package: Available in surface-mount TO-263 and TO-252 packages, providing flexibility in design and ease of assembly.
The LM1085ISX-3.3 is designed for applications requiring efficient, reliable, and stable power delivery, such as in computing, telecommunications, and consumer electronics.

Package

The LM1085ISX-3.3 is a low dropout voltage regulator with a fixed output of 3.3V. It is typically available in a TO-263 surface-mount package, which is suitable for applications requiring efficient heat dissipation.

Pinout

The LM1085ISX-3.3 is a voltage regulator with a fixed output voltage of 3.3V. It typically comes in a 3-pin package:
1. Pin 1 (ADJ/GND): This pin is used for adjusting the output voltage for the adjustable version of the LM1085, but for the fixed version like LM1085ISX-3.3, it functions as the ground terminal.
2. Pin 2 (Output): This pin provides the regulated output voltage of 3.3V.
3. Pin 3 (Input): This pin is where the input voltage is supplied to the regulator. It must be higher than the desired output voltage plus the dropout voltage.
The LM1085 is a low dropout linear regulator, meaning it can maintain the output voltage with a small difference between the input and output voltages. It is ideal for applications requiring a stable 3.3V supply with moderate current requirements, typically up to 3A.

Manufacturer

The LM1085ISX-3.3 is manufactured by Texas Instruments, a leading global semiconductor company. Texas Instruments designs and produces a wide range of semiconductor products, including analog and embedded processing chips. These components are vital in various applications, ranging from industrial machinery and automotive systems to consumer electronics and communication devices. The company is known for its innovation and focus on developing technologies that improve power efficiency and performance in electronic systems.

Application

The LM1085ISX-3.3 is a low-dropout (LDO) linear voltage regulator that provides a stable 3.3V output. Its application areas include powering microcontrollers, digital circuits, and other low-voltage electronic components. It's commonly used in telecommunications, medical devices, industrial automation, and consumer electronics due to its efficiency in regulating voltage with minimal heat dissipation. Additionally, it is suitable for battery-powered applications because of its low dropout voltage and low quiescent current, helping to extend battery life.

Equivalent

The LM1085ISX-3.3 is a low-dropout (LDO) linear voltage regulator. Equivalent products include:
1. LD1117-3.3 by STMicroelectronics
2. MIC29302WT by Microchip Technology
3. LT1086CT-3.3 by Analog Devices
4. NCP1117-3.3 by ON Semiconductor
These alternatives provide similar functionality, voltage output, and current ratings, but always check the datasheets for specific compatibility with your requirements.

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