LM2990SX-5.0

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LM2990SX-5.0

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IC REG LINEAR -5V 1.8A TO263

  • HerstellerTexas Instruments

  • Herstellerteil #LM2990SX-5.0

  • Auf Lager2903

365 Tage Qualitätsgarantie

7*24 Stunden-Servicegarantie

90-Tage Kundendienstgarantie

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Spezifikationen

Attribut Wert
Part Status Obsolete
Output Configuration Negative
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) -26V
Voltage - Output (Min / Fixed) -5V
Voltage Dropout (Max) 1V @ 1A
Current - Output 1.8A
Current - Quiescent (Iq) 1 mA
Current - Supply (Max) 5 mA
PSRR 58dB (1kHz)
Protection Features Over Temperature, Short Circuit
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
Supplier Device Package TO-263 (DDPAK-3)
Base Product Number LM2990

Übersicht

Description

The LM2990SX-5.0 is a negative voltage regulator designed by Texas Instruments. It provides a fixed -5.0V output with a maximum current of 1.5A. This linear regulator is particularly suitable for applications requiring a stable negative voltage supply. Key features include a low dropout voltage of typically 0.6V at 1A load, ensuring efficient performance even when the input voltage is close to the output voltage. The LM2990SX-5.0 also offers features like thermal shutdown and short-circuit protection, ensuring reliability and safety under various operating conditions. Its low quiescent current and precise voltage regulation make it suitable for battery-operated devices, industrial equipment, and other electronic applications. The device comes in a TO-263 surface-mount package, facilitating easy integration into circuit boards. Overall, the LM2990SX-5.0 is a robust choice for designers needing a dependable negative voltage regulation solution.

Equivalent

The LM2990SX-5.0 is a negative voltage regulator. Equivalent products include:
1. LT3015: A low-noise, low-dropout negative regulator.
2. MIC5265: A high-performance negative voltage regulator.
3. TPS7A33: A low-dropout voltage regulator for negative voltages.
4. LM337: An adjustable negative voltage regulator.
These alternatives may differ in specifications, so always check the datasheet for compatibility with your application.

Features

The LM2990SX-5.0 is a negative voltage regulator designed to provide a fixed output voltage of -5.0V. Key features include:
1. Wide Input Voltage Range: It can handle an input voltage range from -26V to -6V.

2. Output Current Capability: Delivers up to 1.5A of output current, suitable for high-power applications.
3. Low Dropout Voltage: Typically around 0.6V at full load, which improves efficiency.
4. Low Quiescent Current: Consumes minimal quiescent current, typically around 1mA, enhancing battery life in portable applications.
5. Thermal Protection: Includes over-temperature shutdown to prevent damage from overheating.
6. Short-Circuit Protection: Ensures robustness by preventing excessive current draw in case of output short circuits.
7. Reverse Polarity Protection: Guards against damage due to incorrect polarity connections.
8. Package Options: Comes in a surface-mount TO-263 package, facilitating compact PCB designs.
These features make the LM2990SX-5.0 ideal for applications requiring stable negative voltage regulation with high efficiency and protection against typical electrical hazards.

Pinout

The LM2990SX-5.0 is a voltage regulator with a negative output voltage. It comes in a TO-263-5 package, which has 5 pins. Here is a brief description of its pin count and functions:
1. Input (Pin 1): This is the pin where the unregulated input voltage is applied.
2. Ground (Pin 2): This pin is connected to the ground of the circuit.
3. Output (Pin 3): The regulated negative voltage output is provided at this pin.
4. Shutdown (Pin 4): This pin is used to enable or disable the regulator. Applying a specific logic level (typically high) will shut the regulator down.
5. N/C (Pin 5): This pin is not connected internally, sometimes used for mechanical support or heat dissipation.
The LM2990SX-5.0 provides a fixed -5.0V output and is commonly used in applications requiring negative voltage regulation.

Manufacturer

The LM2990SX-5.0 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a broad range of analog and embedded processing chips. TI's products are fundamental in a variety of applications, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. The company is known for its innovation in technology and focus on creating products that enhance global connectivity and efficiency.

Application

The LM2990SX-5.0 is a voltage regulator designed for applications requiring a fixed -5.0V output. It is commonly used in power management for negative voltage rails in electronic circuits. Key application areas include:
1. Telecommunications: Used in networking equipment and telecom infrastructure for stable power supply.
2. Industrial Equipment: Powers control systems and sensors requiring negative voltages.
3. Consumer Electronics: Supports audio equipment and other devices needing specific voltage levels.
4. Automotive Systems: Used in automotive electronics for reliable voltage regulation.
5. Instrumentation: Ensures precision in measurement devices by providing constant voltage.
Its high performance and reliability make it valuable in any application demanding a stable -5.0V output.

Package

The LM2990SX-5.0 is a negative voltage regulator from Texas Instruments, typically available in a TO-263 surface-mount package. This package type is designed for efficient thermal performance and is commonly used in power management applications.

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