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LM337LZ
+StücklisteIC REG LIN NEG ADJ 100MA TO92-3
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HerstellerNational Semiconductor
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Herstellerteil #LM337LZ
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Datenblatt LM337LZ DataSheet
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Auf Lager4153
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Spezifikationen
| Attribut | Wert |
| PartStatus | Active |
| OutputConfiguration | Negative |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | -40V |
| Voltage-Output(Min/Fixed) | -1.2V |
| Voltage-Output(Max) | -37V |
| Current-Output | 100mA |
| Current-Quiescent(Iq) | 5 mA |
| PSRR | 80dB ~ 65dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | -25°C ~ 125°C (TJ) |
| MountingType | Through Hole |
| Package/Case | TO-226-3, TO-92-3 (TO-226AA) |
| SupplierDevicePackage | TO-92-3 |
Übersicht
Description
The LM337LZ is a versatile adjustable voltage regulator designed to provide a negative output voltage. It can deliver output voltages ranging from -1.2V to -37V, with a maximum output current of 1.5A. The device features thermal overload protection, short-circuit protection, and safe area protection, ensuring reliable operation in various applications.
Typically, the LM337LZ is used in power supply circuits, audio equipment, and as a programmable power supply for sensitive electronic components. Its ability to adjust voltage output makes it ideal for custom applications requiring negative voltage solutions.
The regulator is housed in a standard TO-220 package, allowing for easy heat dissipation and integration into electronic designs. The LM337LZ also requires minimal external components, making it user-friendly for both hobbyists and professionals.
Overall, its combination of flexibility, protection features, and ease of use makes the LM337LZ a popular choice for a range of electronic projects and applications.
Typically, the LM337LZ is used in power supply circuits, audio equipment, and as a programmable power supply for sensitive electronic components. Its ability to adjust voltage output makes it ideal for custom applications requiring negative voltage solutions.
The regulator is housed in a standard TO-220 package, allowing for easy heat dissipation and integration into electronic designs. The LM337LZ also requires minimal external components, making it user-friendly for both hobbyists and professionals.
Overall, its combination of flexibility, protection features, and ease of use makes the LM337LZ a popular choice for a range of electronic projects and applications.
Equivalent
The LM337LZ is a low dropout adjustable voltage regulator. Equivalent products include the LT1085, LM317, MCP1700, and LM1117 For similar specifications, consider the MCP1825, LM1084, or the LM338 for higher current applications. Always verify the specific voltage, current ratings, and package type to ensure compatibility with your application.
Features
The LM337LZ is a low-dropout adjustable voltage regulator designed to provide a negative output voltage. Key features include:
1. Output Voltage Adjustment: The output voltage can be adjusted from -1.25V to -37V using external resistors.
2. Low Dropout Voltage: It offers a low dropout voltage of around 1.5V, allowing it to function effectively with minimal input-output voltage difference.
3. Current Capability: The LM337LZ can supply up to 1.5A of output current.
4. Thermal Regulation: It features thermal overload protection and safe operating area protection to prevent damage.
5. Wide Operating Temperature Range: It operates within a temperature range of -40°C to +125°C.
6. Compact Packaging: Available in a TO-220 package, facilitating easy integration into various designs.
7. High Ripple Rejection: The device provides good transient response and ripple rejection.
These features make the LM337LZ suitable for applications requiring adjustable negative voltage regulation, such as power supplies and battery management systems.
1. Output Voltage Adjustment: The output voltage can be adjusted from -1.25V to -37V using external resistors.
2. Low Dropout Voltage: It offers a low dropout voltage of around 1.5V, allowing it to function effectively with minimal input-output voltage difference.
3. Current Capability: The LM337LZ can supply up to 1.5A of output current.
4. Thermal Regulation: It features thermal overload protection and safe operating area protection to prevent damage.
5. Wide Operating Temperature Range: It operates within a temperature range of -40°C to +125°C.
6. Compact Packaging: Available in a TO-220 package, facilitating easy integration into various designs.
7. High Ripple Rejection: The device provides good transient response and ripple rejection.
These features make the LM337LZ suitable for applications requiring adjustable negative voltage regulation, such as power supplies and battery management systems.
Pinout
The LM337LZ is an adjustable negative voltage regulator with a pin count of 3.
Pin Functions:
1. Adjust (ADJ): This pin is used to set the output voltage by connecting a resistor divider from the output to this pin, allowing the user to adjust the output voltage within the specified range.
2. Output (VOUT): This pin provides the adjustable negative output voltage to the load. The output voltage can be varied from -1.25V to -37V with appropriate resistor values.
3. Input (VIN): This pin is connected to the input voltage source, which must be more negative than the output voltage.
The LM337LZ is typically used in applications requiring a stable negative voltage supply.
Pin Functions:
1. Adjust (ADJ): This pin is used to set the output voltage by connecting a resistor divider from the output to this pin, allowing the user to adjust the output voltage within the specified range.
2. Output (VOUT): This pin provides the adjustable negative output voltage to the load. The output voltage can be varied from -1.25V to -37V with appropriate resistor values.
3. Input (VIN): This pin is connected to the input voltage source, which must be more negative than the output voltage.
The LM337LZ is typically used in applications requiring a stable negative voltage supply.
Manufacturer
The LM337LZ is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including analog, digital signal processing, and embedded processing devices. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation in the semiconductor industry, focusing on developing integrated circuits (ICs) that enhance various electronic applications.
The LM337LZ is a voltage regulator that can provide adjustable output voltage and is often used in power management circuits for electronics. TI’s extensive portfolio includes products for various sectors such as automotive, industrial, communications, and consumer electronics. The company emphasizes research and development to advance technology and improve efficiency in electronic designs.
TI operates globally and is recognized for its commitment to quality, support, and sustainability in the semiconductor industry.
The LM337LZ is a voltage regulator that can provide adjustable output voltage and is often used in power management circuits for electronics. TI’s extensive portfolio includes products for various sectors such as automotive, industrial, communications, and consumer electronics. The company emphasizes research and development to advance technology and improve efficiency in electronic designs.
TI operates globally and is recognized for its commitment to quality, support, and sustainability in the semiconductor industry.
Application
The LM337LZ is a versatile adjustable voltage regulator commonly used in various applications, including:
1. Power Supply Circuits: Providing adjustable output voltages for custom power needs.
2. Battery Chargers: Regulating voltage for charging batteries safely.
3. LED Drivers: Supplying constant voltage for LED lighting applications.
4. Test Equipment: Offering adjustable voltage for testing components and circuits.
5. Consumer Electronics: Used in devices requiring specific voltage regulation.
6. Industrial Equipment: Providing stable voltage in machinery and automation systems.
Its features make it suitable for applications requiring precision voltage control and stability.
1. Power Supply Circuits: Providing adjustable output voltages for custom power needs.
2. Battery Chargers: Regulating voltage for charging batteries safely.
3. LED Drivers: Supplying constant voltage for LED lighting applications.
4. Test Equipment: Offering adjustable voltage for testing components and circuits.
5. Consumer Electronics: Used in devices requiring specific voltage regulation.
6. Industrial Equipment: Providing stable voltage in machinery and automation systems.
Its features make it suitable for applications requiring precision voltage control and stability.
Package
The LM337LZ is typically available in a TO-220 package. This package type features three leads and is designed for easy heat dissipation, making it suitable for voltage regulation applications.
