LM1085IS-3.3

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LM1085IS-3.3

LM1085 3A FIXED / ADJUSTABLE OUT

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Spécifications

Package Bulk
ProductStatus Active
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 LM1085IS-3.3 is a low-dropout (LDO) linear voltage regulator designed for applications requiring a reliable 3.3V output. It is part of the LM1085 series, which is known for its high output current capability, up to 3A. This specific model, the "IS-3.3," indicates the fixed output voltage version at 3.3V. The regulator features a low dropout voltage, typically around 1.3V at full load, which makes it suitable for systems where the input voltage is close to the output voltage.
Key features of the LM1085IS-3.3 include short-circuit protection, thermal overload protection, and a built-in current limiting to ensure robust performance under various operating conditions. It is often used in applications such as power supplies for microprocessors, digital systems, and other circuits requiring a stable 3.3V source.
Housed in a TO-263 package, the LM1085IS-3.3 is designed for easy mounting and effective heat dissipation. Its simplicity and reliability make it a popular choice for engineers designing systems that require efficient and dependable voltage regulation.

Features

The LM1085IS-3.3 is a low dropout (LDO) voltage regulator specifically designed to provide a fixed output voltage of 3.3V. Key features include:
1. Output Current: It can deliver up to 3A of output current, making it suitable for powering moderate loads in various applications.
2. Low Dropout Voltage: With a dropout voltage of approximately 1.5V at full load, it efficiently regulates output even with small differences between input and output voltages.
3. Thermal Protection: It includes built-in thermal shutdown protection to prevent overheating, enhancing the device's reliability and safety.
4. Current Limiting: The device is equipped with current limiting protection to safeguard against overcurrent conditions.
5. Stability: The LM1085IS-3.3 is stable with tantalum and aluminum electrolytic capacitors, allowing flexibility in output capacitor selection.
6. Package: It is available in an industry-standard TO-220 package, facilitating easy mounting and heat dissipation.
7. Applications: Suitable for use in post-regulation for switching supplies, battery chargers, and as a constant voltage source for digital and analog circuits.
These features make the LM1085IS-3.3 an effective choice for a wide range of power supply solutions in electronic devices.

Package

The LM1085IS-3.3 is a low dropout (LDO) linear voltage regulator from Texas Instruments. It is typically packaged in a TO-263 package, which is a surface-mount, 3-pin configuration designed for easy mounting and efficient thermal management.

Pinout

The LM1085IS-3.3 is a fixed output voltage linear voltage regulator with a 3.3V output. It typically comes in a TO-263 package and has a pin count of 3. The functions of the pins are as follows:
1. Input (IN): This is the pin where the input voltage is applied. The input voltage must be higher than the 3.3V output by at least the dropout voltage to ensure proper regulation.
2. Ground (GND): This pin is the ground reference for the input and output voltages. It is typically connected to the system ground.
3. Output (OUT): This pin provides the regulated 3.3V output voltage. It supplies power to the load circuit.
The LM1085IS-3.3 is designed to provide a regulated output with low dropout voltage, excellent line and load regulation, and low noise, making it suitable for various applications where a stable 3.3V power supply is required.

Manufacturer

The LM1085IS-3.3 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. The company is well-known for its focus on innovation and development in various sectors, including industrial, automotive, personal electronics, and communications equipment. Texas Instruments is recognized for producing high-quality products that are integral to the functioning of modern electronic systems, with a reputation for reliability and performance in the technology industry.

Application

The LM1085IS-3.3 is a low-dropout linear voltage regulator, suitable for various applications requiring stable 3.3V power supply. Its application areas include powering microprocessors, microcontrollers, digital signal processors, and sensitive analog circuits in communication devices, industrial equipment, and consumer electronics. It is also used in networking hardware, automotive electronics, and any system requiring efficient power management with low noise and high current capability.

Equivalent

The LM1085IS-3.3 is a low dropout voltage regulator providing a fixed 3.3V output. Equivalent products include:
- LT1085CT-3.3 by Analog Devices
- KA3085R33 by Samsung
- MIC39100-3.3 by Microchip Technology
- NCP1117-3.3 by ON Semiconductor
- TLV1117-33 by Texas Instruments
These alternatives offer similar output voltage, current capabilities, and package options. Always verify the electrical specifications and pin configurations for compatibility.

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UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

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