LM79L05F

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LM79L05F

+Nomenclature

IC REG LINEAR -5V 100MA SOT89

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Spécifications

Attribut Valeur
PartStatus Active
OutputConfiguration Negative
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) -20V
Voltage-Output(Min/Fixed) -5V
VoltageDropout(Max) 1.7V @ 40mA
Current-Output 100mA
Current-Quiescent(Iq) 6 mA
PSRR 49dB (120Hz)
ProtectionFeatures Over Current, Over Temperature, Short Circuit
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case TO-243AA
SupplierDevicePackage SOT-89

Présentation

Description

The LM79L05F is a low-dropout linear voltage regulator designed to provide a stable output voltage of -5V with a maximum output current of 100mA. It is part of the LM79 series, which is known for its negative voltage regulation capabilities. The device features a low dropout voltage, typically around 0.3V, which allows it to operate efficiently even with a small difference between input and output voltages.
Key specifications include a wide input voltage range, typically from -7V to -20V, and built-in thermal overload protection and short-circuit protection, enhancing its reliability. The LM79L05F is commonly used in applications requiring negative voltage supplies, such as operational amplifiers or analog circuits.
Its compact package, often available in TO-220 or SOT-89, makes it suitable for space-constrained designs. Overall, the LM79L05F is an essential component for providing efficient negative voltage regulation in various electronic applications.

Equivalent

The LM79L05F is a low-dropout voltage regulator that provides a fixed output of -5V. Equivalent products include the LM7912 (for -12V), LM7905, and the LD1117-5.0, among others. Other alternatives are the MCP1700-5.0 or the LT1086-5.0, depending on specific requirements like current rating and package type. Always check for similar specifications to ensure compatibility with your circuit.

Features

The LM79L05F is a low-dropout voltage regulator designed to provide a stable output voltage of -5V. Key features include:
1. Output Current: Capable of delivering up to 100 mA of output current.
2. Dropout Voltage: Low dropout voltage, typically around 0.3V, allowing efficient operation when the input is close to the output voltage.
3. Thermal Protection: Integrated thermal shutdown to prevent damage from overheating.
4. Short-Circuit Protection: Built-in short-circuit protection ensures reliability under fault conditions.
5. Low Noise: Designed to minimize output noise, making it suitable for sensitive applications.
6. Package Options: Available in various packages, including TO-92 and SOT-223, for flexibility in design.
7. Temperature Range: Operates within a wide temperature range, typically from -40°C to +125°C.
These features make the LM79L05F ideal for powering analog circuits and other sensitive electronic devices that require a stable negative voltage supply.

Pinout

The LM79L05F is a low-dropout voltage regulator with a pin count of 5. It is designed to provide a stable output voltage of -5V.
Pin Functions:
1. Input (Pin 1): This pin receives the unregulated input voltage.
2. Ground (Pin 2): This pin is connected to the ground reference.
3. Output (Pin 3): This pin delivers the regulated -5V output voltage.
4. Adjust (Pin 4): This pin can be used to adjust the output voltage if desired, although it is typically fixed.
5. NC (Pin 5): No connection; this pin is not used in the circuit.
The LM79L05F is typically used in various electronic applications requiring a stable negative voltage supply.

Manufacturer

The LM79L05F is manufactured by Texas Instruments, a prominent technology company. Texas Instruments (TI) is known for its development and production of semiconductors and various integrated circuits (ICs), including analog, embedded processing, and digital signal processing. Founded in 1930 and headquartered in Dallas, Texas, TI serves a wide range of markets, including automotive, industrial, and consumer electronics. The company is recognized for its innovation in electronic components and plays a significant role in the semiconductor industry, providing solutions that enhance connectivity, efficiency, and overall performance in electronic devices.

Application

The LM79L05F is a low-dropout (LDO) linear voltage regulator primarily used for providing stable output voltage in low-power applications. Its main application areas include:
1. Consumer Electronics: Powering devices like audio equipment, gaming consoles, and home appliances.
2. Microcontroller Circuits: Supplying voltage to microcontrollers and logic circuits.
3. Telecommunication Devices: Used in modems, routers, and communication modules.
4. Embedded Systems: Regulating voltage in various embedded applications.
5. Battery-Powered Devices: Ensuring efficient power management in portable electronics.
These applications benefit from the LM79L05F’s reliability and low noise characteristics.

Package

The LM79L05F is typically packaged in a surface-mount SO-8 package. This compact package type is designed for efficient thermal performance and ease of integration into electronic circuits.