LM337IMP/NOPB

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LM337IMP/NOPB

IC REG LIN NEG ADJ 1.5A SOT223-4

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사양

Package Bulk
ProductStatus Active
OutputConfiguration Negative
OutputType Adjustable
NumberofRegulators 1
Voltage-Input(Max) -40V
Voltage-Output(Min/Fixed) -1.2V
Voltage-Output(Max) -37V
Current-Output 1.5A
PSRR 60dB (120Hz)
ProtectionFeatures Over Temperature, Short Circuit
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case TO-261-4, TO-261AA

개요

Description

The LM337IMP/NOPB is a negative voltage regulator integrated circuit designed to provide adjustable output voltages ranging from -1.2V to -37V when used in conjunction with external resistors. Manufactured by Texas Instruments, this component can supply up to 1.5A of current, making it suitable for applications that require reliable and precise voltage regulation. It operates with a dropout voltage of approximately 3V, ensuring efficient performance over a wide range of input voltages.
The LM337IMP/NOPB features internal current limiting, thermal shutdown, and safe area compensation, which enhance its reliability and protect it from damage due to overheating and overloading. The package type for this model is typically SOT-223, which is compact and allows for surface mounting on printed circuit boards (PCBs), making it ideal for space-constrained applications.
Common uses for the LM337IMP/NOPB include power supply designs, battery chargers, and other electronic circuits requiring negative voltage regulation. Its versatility and robustness make it a popular choice among engineers and designers working on a wide range of electronic projects.

Features

The LM337IMP/NOPB is a negative adjustable voltage regulator with several key features:
1. Output Voltage Range: It provides an adjustable output voltage ranging from -1.2V to -37V. This flexibility allows it to be used in a variety of applications requiring different voltage levels.
2. Output Current: The regulator can deliver an output current of up to 1.5A, making it suitable for moderate power applications.
3. Thermal Regulation: It includes thermal regulation which ensures stable operation over varying temperature conditions.
4. Short-Circuit Protection: Built-in current limiting and thermal shutdown features protect the device from damage due to short circuits or overloads.
5. Low Output Noise: The LM337IMP/NOPB is designed to provide low output noise, which is beneficial in sensitive electronic applications.
6. Line and Load Regulation: It offers excellent line and load regulation, maintaining consistent performance despite fluctuations in input voltage or load current.
7. Package Type: This regulator is available in a TO-252 (DPAK) surface-mount package, facilitating compact designs and efficient heat dissipation.
Overall, the LM337IMP/NOPB is a reliable choice for applications requiring a versatile and robust negative voltage regulation solution.

Package

The LM337IMP/NOPB is a negative adjustable voltage regulator available in a SOT-223 package. This package type is a surface-mount option that provides compact size and efficient thermal handling, suitable for various electronic applications.

Pinout

The LM337IMP/NOPB is a negative adjustable voltage regulator. It typically comes in a SOT-223 package, which has three pins. Here’s a concise description of the pin functions:
1. Input (Pin 3): This pin is where the unregulated negative voltage is supplied to the regulator.
2. Output (Pin 2): This pin provides the regulated negative voltage output. The voltage level can be adjusted using external resistors.
3. Adjust (Pin 1): This pin is used to set the output voltage. By connecting a resistor between the adjust pin and the output pin, and a second resistor between the adjust pin and ground, the output voltage can be configured.
The LM337IMP/NOPB can regulate output voltages from -1.2V to -37V with a maximum output current of 1.5A, making it versatile for various applications.

Manufacturer

The LM337IMP/NOPB is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits and analog chips. TI is known for its innovation in the electronics industry, providing solutions for various sectors such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company focuses on manufacturing products that help designers create smaller, more efficient, and more cost-effective devices.

Application

The LM337IMP/NOPB is a negative voltage regulator commonly used in applications requiring adjustable negative output voltages. Its typical application areas include power supply units, battery chargers, and dual-polarity power supply designs in electronic devices. It is also utilized in operational amplifier circuits, analog signal processing, and instrumentation equipment where stable and adjustable negative voltage is needed. The device's ability to provide a constant voltage output makes it suitable for protecting sensitive electronic components from voltage fluctuations.

Equivalent

The LM337IMP/NOPB is a negative adjustable voltage regulator. Equivalent products include:
1. LM337 series from other manufacturers (e.g., ON Semiconductor, Fairchild)
2. L79xx series, which are similar negative voltage regulators
3. LT1033 from Analog Devices
4. MC7905 from ON Semiconductor
These parts offer similar functionalities, with variations in current capacity and packaging options. Always verify electrical characteristics and pin configurations when substituting.

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