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LM337BTG
+Lista de MateriaisIC REG LIN NEG ADJ 1.5A TO220
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Fabricanteonsemi
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Peça do Fabricante #LM337BTG
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Ficha Técnica LM337BTG DataSheet
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Especificações
| Atributo | Valor |
| PartStatus | 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 |
| PSRR | 77dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Through Hole |
| Package/Case | TO-220-3 |
| SupplierDevicePackage | TO-220 |
| BaseProductNumber | LM337 |
| Current-Supply(Max) | 10 mA |
Visão Geral
Description
The LM337BTG operates with a wide input voltage range, typically from -40V to -15V, allowing it to function effectively in various circuits. It is commonly used in power supplies, battery chargers, and for creating reference voltages in circuits requiring negative power.
When using the LM337BTG, external resistors are necessary to set the desired output voltage, and additional capacitors may be required for stability and transient response. Its versatility and robustness make it a popular choice for electronic designers looking to implement reliable negative voltage solutions in their projects.
Equivalent
Features
1. Output Voltage Adjustment: It provides an adjustable output voltage range from -1.25V to -37V, allowing flexibility in applications.
2. Output Current: Capable of delivering up to 1.5A of output current, making it suitable for various loads.
3. Line Regulation: It offers good line regulation, which ensures stable output voltage despite variations in input voltage.
4. Load Regulation: Excellent load regulation allows for consistent performance under changing load conditions.
5. Thermal Protection: Includes built-in thermal overload protection to prevent damage from overheating.
6. Short-Circuit Protection: Features internal current limiting to safeguard against short circuits.
7. Package Type: Available in TO-220 and other packages for versatile mounting options.
The LM337BTG is widely used in power supply circuits, audio equipment, and other electronic devices requiring adjustable negative voltage outputs.
Pinout
1. Adjust (ADJ): This pin is used to set the output voltage by connecting a resistor divider network. It allows for adjustable output voltage ranging from -1.25V to -37V, making it suitable for various applications.
2. Output (VOUT): This pin provides the regulated output voltage. The output voltage can be adjusted according to the resistors connected to the ADJ pin.
3. Input (VIN): This pin is connected to the input voltage supply, which must be at least 3V higher than the desired output voltage for proper regulation.
The LM337BTG is popular for providing negative voltage regulation in power supply circuits, enabling designers to create stable and adjustable negative voltage sources efficiently.
Manufacturer
Application
1. Power Supply Design: It allows adjustable output voltages, making it suitable for custom power supplies.
2. Battery Chargers: Used in chargers to provide a stable voltage for various battery types.
3. Voltage Regulation in Circuits: Provides a regulated output in sensitive electronic circuits.
4. Test Equipment: Used in laboratory power supplies for testing and development.
5. Embedded Systems: Powers microcontrollers and other digital devices.
6. Audio Equipment: Ensures stable voltage for high-fidelity audio systems.
These applications leverage the LM337BTG's versatility and efficiency in voltage regulation.