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LM2940CSX-15
+BOMIC REG LINEAR 15V 1A TO263
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ManufacturerTexas Instruments
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Mfr. Part #LM2940CSX-15
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In Stock5449
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Specifications
| Attribute | Value |
| Part Status | Obsolete |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 26V |
| Voltage - Output (Min / Fixed) | 15V |
| Voltage Dropout (Max) | 0.8V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 66dB (120Hz) |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | 0°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 | LM2940 |
Overview
Description
The LM2940CSX-15 is a low-dropout linear voltage regulator designed to provide a stable output of 15V. It features a low dropout voltage of around 0.5V at 1A output current, making it suitable for applications where the input voltage is close to the output voltage. The device can deliver up to 1A of output current while ensuring minimal heat generation due to its efficient design.
Key features include internal thermal shutdown, short-circuit protection, and reverse polarity protection, enhancing reliability and safety in various applications. The LM2940CSX-15 is ideal for powering sensitive electronic components, such as microcontrollers and analog devices, where stable voltage is crucial.
It operates over a wide temperature range and is available in a TO-220 package, facilitating easy integration into circuits. Overall, the LM2940CSX-15 is a reliable choice for applications requiring a fixed voltage regulation with low dropout characteristics.
Key features include internal thermal shutdown, short-circuit protection, and reverse polarity protection, enhancing reliability and safety in various applications. The LM2940CSX-15 is ideal for powering sensitive electronic components, such as microcontrollers and analog devices, where stable voltage is crucial.
It operates over a wide temperature range and is available in a TO-220 package, facilitating easy integration into circuits. Overall, the LM2940CSX-15 is a reliable choice for applications requiring a fixed voltage regulation with low dropout characteristics.
Equivalent
Equivalent products to the LM2940CSX-15 include the LDO regulators like the LT1085, LM1084, and MCP1700. The LM2940 is a low dropout voltage regulator, so alternatives should have similar dropout specifications and output voltage of 15V. Other options may include the MIC2940A and the TPS7A15, depending on specific application requirements such as current rating and thermal characteristics. Always check the datasheets for compatibility in your design.
Features
The LM2940CSX-15 is a low dropout (LDO) voltage regulator designed to provide a stable output voltage of 15V. Key features include:
1. Low Dropout Voltage: Typically 0.5V at 1A load, allowing efficient regulation even with minimal input-output voltage differential.
2. Output Current: Capable of delivering up to 1A of output current.
3. Thermal Overload Protection: Integrated thermal shutdown mechanism to prevent damage under excessive heat.
4. Short Circuit Protection: Safeguards the device and load by limiting current during fault conditions.
5. Fast Transient Response: Designed for minimal output voltage fluctuations during load changes.
6. Low Quiescent Current: Ensures efficient operation, making it suitable for battery-powered applications.
7. Capacitor Stability: Compatible with various output capacitors, enhancing design flexibility.
8. Wide Operating Temperature Range: Typically from -40°C to +125°C.
These features make the LM2940CSX-15 suitable for various applications requiring reliable voltage regulation.
1. Low Dropout Voltage: Typically 0.5V at 1A load, allowing efficient regulation even with minimal input-output voltage differential.
2. Output Current: Capable of delivering up to 1A of output current.
3. Thermal Overload Protection: Integrated thermal shutdown mechanism to prevent damage under excessive heat.
4. Short Circuit Protection: Safeguards the device and load by limiting current during fault conditions.
5. Fast Transient Response: Designed for minimal output voltage fluctuations during load changes.
6. Low Quiescent Current: Ensures efficient operation, making it suitable for battery-powered applications.
7. Capacitor Stability: Compatible with various output capacitors, enhancing design flexibility.
8. Wide Operating Temperature Range: Typically from -40°C to +125°C.
These features make the LM2940CSX-15 suitable for various applications requiring reliable voltage regulation.
Pinout
The LM2940CSX-15 is a low dropout (LDO) voltage regulator with a pin count of 5. Its primary function is to provide a stable output voltage of 15V while allowing for a low input-to-output voltage differential, thereby improving efficiency, especially in battery-powered applications.
Pin Configuration:
1. Input (Vin): Supplies the input voltage.
2. Ground (GND): Common ground reference.
3. Output (Vout): Provides the regulated output voltage (15V).
4. Sense (S): Connects to the output to sense and regulate the voltage.
5. Shutdown (SD): Allows the regulator to be put into a low-power shutdown mode.
The LM2940CSX-15 is designed for low dropout applications and can handle a load current of up to 1A, making it suitable for various electronics requiring stable voltage regulation.
Pin Configuration:
1. Input (Vin): Supplies the input voltage.
2. Ground (GND): Common ground reference.
3. Output (Vout): Provides the regulated output voltage (15V).
4. Sense (S): Connects to the output to sense and regulate the voltage.
5. Shutdown (SD): Allows the regulator to be put into a low-power shutdown mode.
The LM2940CSX-15 is designed for low dropout applications and can handle a load current of up to 1A, making it suitable for various electronics requiring stable voltage regulation.
Manufacturer
The LM2940CSX-15 is manufactured by Texas Instruments (TI), a well-known semiconductor company. Texas Instruments is a global leader in the design and manufacturing of analog and embedded processing chips. The company specializes in a wide range of products, including microcontrollers, digital signal processors, and various analog components. TI serves various markets such as automotive, industrial, communications, and consumer electronics, providing innovative solutions to meet the needs of customers worldwide. The LM2940CSX-15 itself is a low-dropout voltage regulator that offers excellent line and load transient response, making it suitable for a variety of applications requiring stable power supply regulation. Texas Instruments is recognized for its commitment to quality, reliability, and technological advancement, making it a trusted name in the electronics industry.
Application
The LM2940CSX-15 is a low-dropout (LDO) voltage regulator commonly used in various applications, including:
1. Power Supply Circuits: Providing stable voltage output in power management systems.
2. Consumer Electronics: Used in devices like smartphones, tablets, and portable media players.
3. Automotive Applications: Regulating voltage for electronic control units (ECUs) and infotainment systems.
4. Telecommunications: Powering network equipment and communication devices.
5. Industrial Equipment: Supplying power to sensors, actuators, and control systems.
6. Battery-Powered Devices: Ensuring efficient voltage regulation to extend battery life.
Its low dropout voltage makes it suitable for applications needing minimal voltage loss.
1. Power Supply Circuits: Providing stable voltage output in power management systems.
2. Consumer Electronics: Used in devices like smartphones, tablets, and portable media players.
3. Automotive Applications: Regulating voltage for electronic control units (ECUs) and infotainment systems.
4. Telecommunications: Powering network equipment and communication devices.
5. Industrial Equipment: Supplying power to sensors, actuators, and control systems.
6. Battery-Powered Devices: Ensuring efficient voltage regulation to extend battery life.
Its low dropout voltage makes it suitable for applications needing minimal voltage loss.
Package
The LM2940CSX-15 is packaged in a TO-220 style package. This package type features a metal tab for heat dissipation, making it suitable for applications requiring efficient thermal management.
