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LM337TG
+Lista de MateriaisIC REG LIN NEG ADJ 1.5A TO220
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Fabricanteonsemi
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Peça do Fabricante #LM337TG
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Pacote TO-220
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Especificações
| Atributo | Valor |
| Package | Bulk,Tube |
| 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 | Through Hole |
| Package/Case | TO-220-3 |
Visão Geral
Description
The LM337TG is commonly used in power supply designs for providing stable and adjustable negative voltage rails. Its thermal overload protection, short-circuit protection, and safe area compensation make it a robust choice for many circuits. The "TG" designation typically refers to specific packaging, with TO-220 being a common variant, offering good heat dissipation properties.
Ideal for use in a wide range of applications, including battery chargers, operational amplifiers, and precision current regulators, the LM337TG offers flexibility and ease of use in designing reliable power supply solutions.
Equivalent
Features
1. Adjustable Output Voltage: It can deliver an output voltage ranging from -1.2V to -37V, which is set using two external resistors.
2. Output Current: The device can supply up to 1.5A of current.
3. Load and Line Regulation: It offers good regulation characteristics, maintaining stable output despite variations in input voltage or load current.
4. Thermal Overload Protection: Protects the device from overheating.
5. Short-Circuit Current Limiting: Provides protection against output short circuits.
6. Safe Operating Area (SOA) Protection: Ensures the device operates within its safe limits, preventing damage under all conditions.
7. Dropout Voltage: Typically around 3V, allowing the regulator to maintain regulation with a reasonable difference between input and output voltages.
8. Temperature Range: Suitable for operation from -40°C to +125°C.
These features make the LM337TG suitable for a variety of applications where a stable and adjustable negative voltage supply is required.
Pinout
1. Input (PIN 3): This pin is connected to the input voltage, which should be more negative than the output voltage by at least 3 volts.
2. Output (PIN 2): This pin provides the regulated negative output voltage. The output voltage can be adjusted using external resistors.
3. Adjust (PIN 1): This pin is used to set the output voltage. By connecting a resistor divider network between the output and the adjust pin, you can set the desired output voltage.
The LM337TG can output a negative voltage ranging from -1.2V to -37V, with a typical current capability of 1.5A, making it suitable for various applications requiring negative voltage regulation.