Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT) |
| 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 |
| Current-Quiescent(Iq) | 6 mA |
| Current-Supply(Max) | 10 mA |
| PSRR | 77dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB |
Tổng quan
Description
The LM337D2TR4G is a negative voltage regulator designed to provide adjustable output voltage. It belongs to the LM337 series of voltage regulators, which are commonly used for power management in electronic circuits. This component is typically used to convert a higher input voltage into a stable, lower output voltage, which can be adjusted based on the needs of the specific application.
Key features of the LM337D2TR4G include:
- Adjustable output voltage range from -1.2V to -37V.
- Output current capability of up to 1.5A.
- Thermal overload protection and short-circuit current limiting for enhanced reliability and safety.
- A TO-263 surface-mount package for efficient heat dissipation and space-saving on PCBs.
The LM337D2TR4G is widely used in power supplies, battery chargers, and other applications requiring a stable negative voltage supply. Its flexibility and robust performance make it a popular choice among engineers and designers looking for efficient negative voltage regulation solutions.
Key features of the LM337D2TR4G include:
- Adjustable output voltage range from -1.2V to -37V.
- Output current capability of up to 1.5A.
- Thermal overload protection and short-circuit current limiting for enhanced reliability and safety.
- A TO-263 surface-mount package for efficient heat dissipation and space-saving on PCBs.
The LM337D2TR4G is widely used in power supplies, battery chargers, and other applications requiring a stable negative voltage supply. Its flexibility and robust performance make it a popular choice among engineers and designers looking for efficient negative voltage regulation solutions.
Equivalent
The LM337D2TR4G is a negative adjustable voltage regulator. Equivalent products include:
1. LM337T - Similar adjustable negative voltage regulator with different packaging.
2. L79LXX series - Offers fixed negative voltage outputs.
3. LT1033 - Another negative voltage regulator with various output options.
4. UA79 series - Fixed negative voltage regulators with varying output voltages.
Ensure to check the specific requirements like current capacity and packaging before substituting.
1. LM337T - Similar adjustable negative voltage regulator with different packaging.
2. L79LXX series - Offers fixed negative voltage outputs.
3. LT1033 - Another negative voltage regulator with various output options.
4. UA79 series - Fixed negative voltage regulators with varying output voltages.
Ensure to check the specific requirements like current capacity and packaging before substituting.
Features
The LM337D2TR4G is a negative voltage regulator designed for various applications requiring a stable voltage supply. Key features include:
1. Adjustable Output Voltage: It can be set to produce voltages between -1.2V and -37V, making it versatile for different requirements.
2. Output Current: Capable of delivering up to 1.5A, which suits moderate power applications.
3. Thermal Overload Protection: This feature prevents the device from overheating, enhancing reliability.
4. Short-Circuit Protection: It safeguards against overcurrent conditions, ensuring durability.
5. Package Type: Available in D2PAK (TO-263) which aids in efficient heat dissipation and ease of mounting.
6. Low Dropout Voltage: Allows the regulator to operate closer to the input voltage, improving efficiency.
7. Ripple Rejection: Offers good line and load regulation, minimizing output voltage variations.
8. Temperature Range: Operates effectively within a wide temperature range, typically from -40°C to +125°C.
These features make the LM337D2TR4G suitable for use in power supply designs where adjustable negative voltage output is needed.
1. Adjustable Output Voltage: It can be set to produce voltages between -1.2V and -37V, making it versatile for different requirements.
2. Output Current: Capable of delivering up to 1.5A, which suits moderate power applications.
3. Thermal Overload Protection: This feature prevents the device from overheating, enhancing reliability.
4. Short-Circuit Protection: It safeguards against overcurrent conditions, ensuring durability.
5. Package Type: Available in D2PAK (TO-263) which aids in efficient heat dissipation and ease of mounting.
6. Low Dropout Voltage: Allows the regulator to operate closer to the input voltage, improving efficiency.
7. Ripple Rejection: Offers good line and load regulation, minimizing output voltage variations.
8. Temperature Range: Operates effectively within a wide temperature range, typically from -40°C to +125°C.
These features make the LM337D2TR4G suitable for use in power supply designs where adjustable negative voltage output is needed.
Pinout
The LM337D2TR4G is a three-terminal adjustable negative voltage regulator. It typically comes in a D2PAK (TO-263) package with a pin count of three. The pins are as follows:
1. Input (VIN): This pin receives the unregulated negative input voltage.
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 pin and the adjust pin, the output voltage can be set to the desired level.
The LM337 can provide an output voltage range typically from -1.25V to -37V, depending on the input voltage and the resistor network connected to the adjust pin. It is widely used in various applications requiring a negative voltage regulation.
1. Input (VIN): This pin receives the unregulated negative input voltage.
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 pin and the adjust pin, the output voltage can be set to the desired level.
The LM337 can provide an output voltage range typically from -1.25V to -37V, depending on the input voltage and the resistor network connected to the adjust pin. It is widely used in various applications requiring a negative voltage regulation.
Manufacturer
The LM337D2TR4G is manufactured by ON Semiconductor. ON Semiconductor, now known as onsemi, is a leading semiconductor manufacturing company that specializes in power and signal management, logic, discrete, and custom devices for a variety of industries, including automotive, communications, computing, consumer electronics, industrial, LED lighting, medical, and military/aerospace. The company is known for providing innovative solutions to meet the demands of modern electronic systems.
Application
The LM337D2TR4G is a negative voltage regulator used in various applications requiring stable voltage supply. Its application areas include power supply for electronic devices, voltage regulation in battery chargers, and in operational amplifier circuits. It is also utilized in communication equipment, industrial automation systems, and consumer electronics to provide a reliable and adjustable negative voltage output. This component is suitable for voltage regulation in precision instruments and is commonly used in embedded systems and microcontroller-based applications where a consistent negative voltage is crucial for device performance.
Package
The LM337D2TR4G is typically available in a D2PAK surface-mount package. This package type is designed for efficient heat dissipation and is suitable for high-power applications where space is limited.
