LM337BTG

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LM337BTG

IC REG LIN NEG ADJ 1.5A TO220

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사양

Part Status Active
Output Configuration Negative
Output Type Adjustable
Number of Regulators 1
Voltage - Input (Max) -40V
Voltage - Output (Min/Fixed) -1.2V
Voltage - Output (Max) -37V
Current - Output 1.5A
Current - Quiescent (Iq) 6 mA
PSRR 77dB (120Hz)
Protection Features Over Current, Over Temperature
Operating Temperature -40°C ~ 125°C
Mounting Type Through Hole
Package / Case TO-220-3
Supplier Device Package TO-220
Base Product Number LM337
Current - Supply (Max) 10 mA

개요

Description

The LM337BTG is a popular adjustable voltage regulator used to supply variable output voltages. It can provide output voltages ranging from -1.25V to -37V, with a maximum output current of 1.5A. The device is particularly useful for applications that require negative voltage regulation, making it ideal for bipolar power supplies and various electronic projects.
The LM337BTG features thermal overload protection, short-circuit protection, and safe-area compensation, ensuring reliable operation and protection against excessive temperatures and currents. It employs external resistors to set the desired output voltage, allowing flexibility in design.
Common applications include power supplies for op-amps, analog circuits, and sensor systems. The LM337BTG is housed in a TO-220 package, which facilitates easy heat dissipation. Additionally, it operates over a wide temperature range, making it suitable for various environmental conditions. Overall, the LM337BTG is a versatile and essential component for any electronic designer looking for adjustable negative voltage solutions.

Features

The LM337BTG is a versatile adjustable voltage regulator designed for use in various applications, providing negative voltage regulation. Key features include:
1. Adjustable Output Voltage: It can output voltages from -1.25V to -37V, allowing flexibility in design.
2. Output Current: Capable of delivering up to 1.5A of output current, making it suitable for a wide range of loads.
3. Thermal Overload Protection: The device includes built-in thermal shutdown, enhancing reliability and protecting against overheating.
4. Short Circuit Protection: It features short-circuit and overload protection to prevent damage during fault conditions.
5. Ease of Use: Requires only two external resistors to set the output voltage, simplifying design and implementation.
6. Low Dropout Voltage: Designed for low dropout operation, allowing it to function effectively even with minimal input-output voltage differential.
These features make the LM337BTG a popular choice in power supply circuits, audio applications, and battery management systems.

Package

The LM337BTG is typically packaged in a TO-220 form factor, which is a common package type for high-power voltage regulators. This package allows for efficient heat dissipation and easy mounting on heatsinks.

Pinout

The LM337BTG is a voltage regulator with a total of 3 pins. The pin functions are as follows:
1. Adjust (Adj): This pin is used to adjust the output voltage by connecting external resistors. The output voltage can be set from -1.25V to -37V relative to the ground.
2. Output (Vout): This pin provides the regulated output voltage. It is connected to the load that requires a negative voltage supply.
3. Input (Vin): This pin receives the input voltage, which must be more negative than the desired output voltage.
The LM337BTG is typically used for providing adjustable negative voltage supplies in various electronic applications.

Manufacturer

The LM337BTG is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and producing semiconductors and various integrated circuits. Founded in 1930, the company is well-known for its innovations in analog electronics, embedded processing, and digital signal processing. TI serves a wide range of industries, including automotive, communication, computing, consumer electronics, and industrial applications. The LM337BTG is a popular adjustable voltage regulator used in various electronic circuits, showcasing TI's expertise in power management solutions.

Application

The LM337BTG is a voltage regulator used for adjustable output voltage applications. Common application areas include power supplies for electronics, battery chargers, and DC motor control circuits. It can also be used in test equipment, audio amplifiers, and adjustable power supplies for prototypes and custom circuits, providing stable negative voltage regulation in various electronic devices.

Equivalent

Equivalent products to the LM337BTG include the LM317 (for positive voltage regulation), LT1084, LM338, and LM350, which are also adjustable voltage regulators. For similar performance in negative voltage regulation, consider the LM337, LM337L, or the LT1083. Always check the specifications for voltage range, current limits, and thermal characteristics to ensure compatibility.

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