規格
| 屬性 | 價值 |
| Package / Case | Tube |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 36V |
| Voltage - Output (Min/Fixed) | 1.235V |
| Voltage - Output (Max) | 35V |
| Current - Output | 2A |
| Frequency - Switching | 500kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
概述
Description
"L5973AD" appears to be a code or reference that isn't widely recognized or associated with a specific, well-documented topic, product, or subject as of my last update in October 2023. It could potentially be a model number, a course code, a project identifier, or something similar, depending on the context in which it is used. To provide an introduction, more context is needed regarding what L5973AD specifically pertains to.
If L5973AD is a technical product, such as in electronics or engineering, an introduction would typically describe its function, key features, and applications. If it is a course code, the introduction would highlight the subject matter, goals, and key components of the curriculum.
For a precise overview, please provide additional context or specify the field or industry related to L5973AD.
If L5973AD is a technical product, such as in electronics or engineering, an introduction would typically describe its function, key features, and applications. If it is a course code, the introduction would highlight the subject matter, goals, and key components of the curriculum.
For a precise overview, please provide additional context or specify the field or industry related to L5973AD.
Equivalent
The L5973AD is a step-down DC-DC converter. Equivalent or similar products include:
1. LM2596 from Texas Instruments
2. MC34063 from ON Semiconductor
3. MP1584 from Monolithic Power Systems
4. LM2576 from Texas Instruments
5. AOZ1284 from Alpha & Omega Semiconductor
These alternatives may have varying specifications, so it's important to compare their features to ensure compatibility with your application.
1. LM2596 from Texas Instruments
2. MC34063 from ON Semiconductor
3. MP1584 from Monolithic Power Systems
4. LM2576 from Texas Instruments
5. AOZ1284 from Alpha & Omega Semiconductor
These alternatives may have varying specifications, so it's important to compare their features to ensure compatibility with your application.
Features
The L5973AD is a step-down monolithic power switching regulator from STMicroelectronics. It is designed for use in applications requiring high-efficiency power conversion from a DC voltage source. Here are some of its key features:
1. Input Voltage Range: Operates from 4.4V to 36V, making it suitable for a wide range of applications.
2. Output Current: Capable of delivering up to 1.5A of output current.
3. Adjustable Output Voltage: The output voltage can be set between 1.235V to 35V.
4. Efficiency: High efficiency due to its advanced design, often over 90% in many applications.
5. Frequency: The switching frequency is fixed at 250 kHz.
6. Thermal Protection: Features thermal shutdown to prevent overheating.
7. Short-Circuit Protection: Built-in to prevent damage from overcurrent conditions.
8. Low Output Voltage Ripple: Ensures stable and clean output power.
9. Package: Available in a standard SO-8 package, facilitating easy integration into various designs.
These features make the L5973AD suitable for use in consumer electronics, industrial controls, and other applications requiring reliable DC-DC conversion.
1. Input Voltage Range: Operates from 4.4V to 36V, making it suitable for a wide range of applications.
2. Output Current: Capable of delivering up to 1.5A of output current.
3. Adjustable Output Voltage: The output voltage can be set between 1.235V to 35V.
4. Efficiency: High efficiency due to its advanced design, often over 90% in many applications.
5. Frequency: The switching frequency is fixed at 250 kHz.
6. Thermal Protection: Features thermal shutdown to prevent overheating.
7. Short-Circuit Protection: Built-in to prevent damage from overcurrent conditions.
8. Low Output Voltage Ripple: Ensures stable and clean output power.
9. Package: Available in a standard SO-8 package, facilitating easy integration into various designs.
These features make the L5973AD suitable for use in consumer electronics, industrial controls, and other applications requiring reliable DC-DC conversion.
Pinout
The L5973AD is a step-down monolithic power switching regulator with a fixed 3.3V output voltage and is capable of delivering up to 2.5A of output current. It comes in an SO-8 package, featuring a total of 8 pins. Here are the pin functions:
1. VCC (Pin 1): Supply voltage input. It provides power to the internal circuitry.
2. OUT (Pin 2): Power switch output. It is connected to the inductor.
3. GND (Pin 3): Ground. The reference point for the circuit.
4. FEEDBACK (Pin 4): Feedback input. It monitors the output voltage for regulation.
5. COMP (Pin 5): Compensation. It is used for frequency compensation of the regulation loop.
6. SYNC (Pin 6): Synchronization input. Allows the switching frequency to be synchronized to an external clock.
7. INH (Pin 7): Inhibit. A logic input to disable the device.
8. BOOT (Pin 8): Bootstrapped voltage. It provides a voltage higher than VCC to drive the internal high-side power MOSFET.
These pins work together to regulate voltage efficiently, offering features like thermal shutdown, current limiting, and a wide input voltage range.
1. VCC (Pin 1): Supply voltage input. It provides power to the internal circuitry.
2. OUT (Pin 2): Power switch output. It is connected to the inductor.
3. GND (Pin 3): Ground. The reference point for the circuit.
4. FEEDBACK (Pin 4): Feedback input. It monitors the output voltage for regulation.
5. COMP (Pin 5): Compensation. It is used for frequency compensation of the regulation loop.
6. SYNC (Pin 6): Synchronization input. Allows the switching frequency to be synchronized to an external clock.
7. INH (Pin 7): Inhibit. A logic input to disable the device.
8. BOOT (Pin 8): Bootstrapped voltage. It provides a voltage higher than VCC to drive the internal high-side power MOSFET.
These pins work together to regulate voltage efficiently, offering features like thermal shutdown, current limiting, and a wide input voltage range.
Manufacturer
The L5973AD is manufactured by STMicroelectronics, a global semiconductor company. STMicroelectronics is one of the world's leading semiconductor manufacturers and is known for designing, developing, and producing a wide range of electronic components and systems. The company serves various markets, including automotive, industrial, personal electronics, and communications equipment. STMicroelectronics is known for its innovation and advanced technologies in the semiconductor industry, providing solutions that enhance the performance and efficiency of electronic devices.
Application
The L5973AD is a step-down switching voltage regulator commonly used in various electronic applications. Its primary application areas include power management in consumer electronics, industrial automation systems, and telecommunications equipment. It is suitable for use in applications requiring efficient voltage conversion from a higher voltage supply to a lower regulated output. This makes it ideal for powering microcontrollers, digital signal processors, and other low-voltage digital circuits in embedded systems. Additionally, it can be used in battery-powered devices due to its high efficiency, helping to prolong battery life.
Package
The L5973AD is a DC-DC converter typically housed in a SO-8 package. This package type is a small outline integrated circuit with eight pins. It's commonly used for its compact size and efficient power management capabilities.
