LM337LM

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LM337LM

IC REG LIN NEG ADJ 100MA 8SOIC

  • Fabricant
  • Mfr. Partie #LM337LM
  • Paquet SOIC (D)-8
  • Fiche de données
  • En stock5709

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Spécifications

Package Bulk
ProductStatus Not For New Designs
OutputConfiguration Negative
OutputType Adjustable
NumberofRegulators 1
Voltage-Input(Max) -40V
Voltage-Output(Min/Fixed) -1.2V
Voltage-Output(Max) -37V
Current-Output 100mA
PSRR 60dB (120Hz)
ProtectionFeatures Over Temperature, Short Circuit
OperatingTemperature -25°C ~ 125°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Vue d'ensemble

Description

The LM337LM is a three-terminal adjustable negative voltage regulator, part of the LM137/LM237/LM337 family. It is designed to provide output voltages ranging from -1.2V to -37V, with a maximum output current of 100 mA, making it suitable for various applications requiring a regulated negative voltage. The device features line regulation of typically 0.01% and load regulation of 0.3%, ensuring stable performance across different load and input voltage conditions.
The LM337LM is commonly used in power supply circuits where a stable negative voltage is required. It incorporates current limiting, thermal overload protection, and safe operating area protection, making it robust against overload conditions. The TO-92 package is compact, allowing for easy integration into various designs. It requires only two external resistors to set the output voltage, offering simplicity and flexibility for designers.
Overall, the LM337LM is valued for its reliability, ease of use, and versatility in applications such as industrial power supplies, battery chargers, and other systems needing adjustable negative voltage regulation.

Features

The LM337 is a versatile, adjustable negative voltage regulator designed for a range of applications. It can deliver an output voltage between -1.25V and -37V with a current capability of up to 1.5A. The device features excellent line and load regulation, which ensures stable performance across varying input voltages and loads.
Key features include a typical line regulation of 0.01%/V and load regulation of 0.3%, contributing to its reliability in maintaining consistent output. The LM337 also offers thermal overload protection, short-circuit protection, and safe area compensation, enhancing its durability and safety in operation.
Adjustability is achieved using two external resistors, making it flexible for different output voltage needs. The LM337 is commonly used in power supply designs where a stable and adjustable negative output voltage is required. It comes in a variety of package types, including TO-220, TO-263, and TO-252, suited for different thermal and space requirements. Overall, the LM337 provides a robust solution for negative voltage regulation needs in both commercial and industrial applications.

Package

The LM337LM is typically available in a TO-243AA package, which is also known as SOT-223. This package type is a surface-mount option that is commonly used for linear voltage regulators like the LM337LM, allowing for efficient thermal management and compact design in electronic circuits.

Pinout

The LM337LM is an adjustable negative voltage regulator with a 3-pin configuration. The pins are typically assigned as follows:
1. Input (VIN): This is where the unregulated negative input voltage is applied.
2. Output (VOUT): This pin provides the regulated negative output voltage.
3. Adjust (ADJ): This pin is used to set the output voltage. By connecting a resistor network between the output and adjust pins, you can adjust the output voltage to the desired level.
The LM337LM is capable of supplying a steady output current and is often used to create a negative voltage supply in electronic circuits. It maintains a stable output voltage over a range of input voltages and load conditions. The device is commonly used in power supply designs where a negative output voltage is required.

Manufacturer

The LM337LM is manufactured by Texas Instruments, an American technology company that designs and manufactures semiconductors and various integrated circuits. Texas Instruments is known for its significant role in the electronics industry, providing a wide range of components used in consumer electronics, automotive, industrial, and communications equipment. The LM337LM is a voltage regulator, which indicates Texas Instruments' involvement in producing essential components for managing electrical power in various applications.

Application

The LM337LM is a versatile negative voltage regulator used in various applications. Key areas include power supply circuits for electronics requiring a stable negative voltage, such as operational amplifiers and analog circuits. It is also used in adjustable power supplies where various output voltages are needed. The device is suitable for battery-powered devices, telecom equipment, and industrial automation systems, where precise voltage regulation and thermal overload protection are crucial. Its ability to provide adjustable voltage output makes it useful in testing and prototyping environments as well.

Equivalent

The LM337LM is a negative adjustable voltage regulator. Equivalent products include the L79xx series (like L7912 or L7915 for specific fixed outputs), the UA79 series, and other adjustable negative voltage regulators such as the LT1033, LM2990, and LM337T (for higher current applications). It's important to verify the specifications like input voltage range, current rating, and package type to ensure compatibility.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

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.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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