Allicdata Part #: | LM337T/LF01-ND |
Manufacturer Part#: |
LM337T/LF01 |
Price: | $ 0.82 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG LIN NEG ADJ 1.5A TO220-3 |
More Detail: | Linear Voltage Regulator IC Negative Adjustable 1 ... |
DataSheet: | LM337T/LF01 Datasheet/PDF |
Quantity: | 1000 |
450 +: | $ 0.74340 |
Specifications
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Output Configuration: | Negative |
Output Type: | Adjustable |
Number of Regulators: | 1 |
Voltage - Input (Max): | -50V |
Voltage - Output (Min/Fixed): | -1.2V |
Voltage - Output (Max): | -37V |
Voltage Dropout (Max): | -- |
Current - Output: | 1.5A |
PSRR: | 77dB (120Hz) |
Control Features: | -- |
Protection Features: | Over Temperature, Short Circuit |
Operating Temperature: | 0°C ~ 125°C |
Mounting Type: | Through Hole |
Package / Case: | TO-220-3 |
Supplier Device Package: | TO-220-3 |
Base Part Number: | LM337 |
Description
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LM337T/LF01 Application Field and Working Principle
Linear voltage regulators, such as LM337T/LF01, are widely used in the design and construction of electronic devices, including but not limited to medical devices, industrial machines, communications equipment, and consumer products. This article will provide a brief overview of the LM337T/LF01 and its common application fields and working principles.LM337T/LF01 Overview
The LM337T/LF01 is a three-terminal adjustable negative voltage regulator that works independently from external components or the supply voltage to produce an output voltage of -1.2 V to -37 V. It is designed to regulate the output current of up to 500mA at various outputs. The LM337T/LF01 is available in surface-mount, lead configuration and TO-245-3L, TO-220-3L, and TO-3P packages.In terms of its features, the LM337T/LF01 has both current and thermal limit protection. It offers excellent regulation, temperature stability, and isolation from the input voltage. It is able to regulate the output voltage accurately over a wide temperature range and can withstand an over-current condition of up to 1.5A. The LM337T/LF01 is also RoHS compliant, making it an ideal choice for applications in the medical, industrial, communications, and consumer markets.Application Fields
The LM337T/LF01 can be used in a wide variety of applications across many different industries. The most common application field for the LM337T/LF01 is as a negative voltage regulator, as it can provide a constant output for a wide range of input voltages. The device is typically used to supply negative voltage for power supplies, LED lighting, LCD panels, audio amplifiers, motor controllers, switching regulators, and more.In addition, the LM337T/LF01 can be used as a current regulator, such as in battery chargers and electric vehicles. The device can also be used in precision systems to avoid under-voltage lockout and during start-up voltage regulation. Furthermore, it can be found in more complex systems, such as voltage multipliers and inverters, in order to provide an adjustable output.Working Principle
The LM337T/LF01 uses a three-terminal adjustable negative voltage regulator technology to produce an output voltage from -1.2 V to -37 V. It is designed with a control terminal responsible for setting the output voltage, as well as two other terminals responsible for providing a constant reference voltage from ground.The LM337T/LF01 has two separate circuit paths connected in parallel. The first circuit path connects the input terminals, which come from the source, to the control terminal. In this circuit, the output voltage will be greater than the input voltage, and therefore, the output of the regulator will be negative. The second circuit path connects the output terminal and the control terminal, where an adjustable resistor is placed. This resistor is then used to modulate the voltage difference between the input and output terminals, allowing the circuit to generate a negative output voltage. The output voltage is maintained through a voltage reference and the voltage feedback loop.Conclusion
The LM337T/LF01 is an adjustable negative voltage regulator capable of providing a fixed negative voltage of -1.2 V to -37 V. This device is commonly used as a negative voltage regulator or current regulator in a wide range of applications, such as power supplies, LED lighting, LCD panels, audio amplifiers, motor controllers, and precision systems. The device uses a three-terminal adjustable negative voltage regulator technology and two separate circuit paths to control the output voltage.The specific data is subject to PDF, and the above content is for reference
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