仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 55V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 45V |
| Current - Output | 2A |
| Frequency - Switching | 100kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
The MP2494DN-LF-Z is a DC-DC step-down converter designed for efficient voltage regulation in electronic devices. It is a highly integrated solution that combines high-performance features into a compact package, suitable for various applications, including consumer electronics, industrial equipment, and telecommunications.
Key features of the MP2494DN-LF-Z include a wide input voltage range, typically supporting 4.5V to 36V, which makes it versatile for different power sources. It delivers a regulated output voltage with high efficiency, often greater than 90%, which helps in minimizing energy loss. The device is known for its fast transient response and low output voltage ripple, ensuring stable performance even under dynamic load conditions.
The MP2494DN-LF-Z also integrates protection features such as over-current protection, thermal shutdown, and under-voltage lockout, enhancing its reliability and safety. The converter is housed in a compact, thermally efficient package, allowing for easy integration into space-constrained designs. Its simplified design process and robust performance make it a popular choice for power management in modern electronic systems.
Key features of the MP2494DN-LF-Z include a wide input voltage range, typically supporting 4.5V to 36V, which makes it versatile for different power sources. It delivers a regulated output voltage with high efficiency, often greater than 90%, which helps in minimizing energy loss. The device is known for its fast transient response and low output voltage ripple, ensuring stable performance even under dynamic load conditions.
The MP2494DN-LF-Z also integrates protection features such as over-current protection, thermal shutdown, and under-voltage lockout, enhancing its reliability and safety. The converter is housed in a compact, thermally efficient package, allowing for easy integration into space-constrained designs. Its simplified design process and robust performance make it a popular choice for power management in modern electronic systems.
Equivalent
The MP2494DN-LF-Z is a step-down converter. Equivalent products include:
1. Texas Instruments TPS54331 – A 3-A, 28-V step-down regulator.
2. Diodes Incorporated AP3429 – A 3-A, 30-V step-down converter.
3. ON Semiconductor LM2675 – A 1-A, 12-V buck regulator.
4. Microchip Technology MCP16301 – A 600-mA, 30-V step-down regulator.
These alternatives should be evaluated for compatibility in terms of electrical characteristics and package type.
1. Texas Instruments TPS54331 – A 3-A, 28-V step-down regulator.
2. Diodes Incorporated AP3429 – A 3-A, 30-V step-down converter.
3. ON Semiconductor LM2675 – A 1-A, 12-V buck regulator.
4. Microchip Technology MCP16301 – A 600-mA, 30-V step-down regulator.
These alternatives should be evaluated for compatibility in terms of electrical characteristics and package type.
Features
The MP2494DN-LF-Z is a step-down, synchronous converter designed for efficient power management. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 36V, allowing for various applications.
2. High Efficiency: Achieves up to 95% efficiency, reducing power loss and thermal issues.
3. Adjustable Output Voltage: Provides a flexible output voltage range from 0.8V to input voltage.
4. Output Current: Supports up to 3A continuous output current.
5. Integrated Power MOSFETs: Includes high-side and low-side MOSFETs for efficient operation.
6. Fixed Switching Frequency: Operates at 340kHz, balancing efficiency and component size.
7. Protection Features: Incorporates over-current protection, thermal shutdown, and under-voltage lockout for enhanced reliability.
8. Soft Start: Features a programmable soft-start to limit inrush current during power-up.
9. Compact Package: Available in a thermally enhanced, space-saving package, suitable for compact designs.
10. Applications: Ideal for automotive, industrial, and distributed power systems.
These features make the MP2494DN-LF-Z a versatile and reliable choice for various power management applications.
1. Wide Input Voltage Range: Operates from 4.5V to 36V, allowing for various applications.
2. High Efficiency: Achieves up to 95% efficiency, reducing power loss and thermal issues.
3. Adjustable Output Voltage: Provides a flexible output voltage range from 0.8V to input voltage.
4. Output Current: Supports up to 3A continuous output current.
5. Integrated Power MOSFETs: Includes high-side and low-side MOSFETs for efficient operation.
6. Fixed Switching Frequency: Operates at 340kHz, balancing efficiency and component size.
7. Protection Features: Incorporates over-current protection, thermal shutdown, and under-voltage lockout for enhanced reliability.
8. Soft Start: Features a programmable soft-start to limit inrush current during power-up.
9. Compact Package: Available in a thermally enhanced, space-saving package, suitable for compact designs.
10. Applications: Ideal for automotive, industrial, and distributed power systems.
These features make the MP2494DN-LF-Z a versatile and reliable choice for various power management applications.
Pinout
The MP2494DN-LF-Z is a DC-DC step-down converter, which typically features an 8-pin configuration. It is designed to step down a higher input voltage to a lower output voltage efficiently, making it ideal for applications requiring high-efficiency voltage regulation.
Here's a concise summary of its pin functions:
1. SW (Switch Node): Connects to the inductor, allowing current flow for the step-down process.
2. IN (Input Voltage): Supplies the input voltage to the converter.
3. GND (Ground): Ground reference for the device.
4. FB (Feedback): Senses the output voltage for regulation.
5. COMP (Compensation): Used to stabilize the control loop.
6. EN (Enable): Enables or disables the converter.
7. BST (Bootstrap): Provides the necessary voltage to drive the internal high-side MOSFET.
8. SS (Soft Start): Controls the soft start time to limit inrush current.
This configuration allows the MP2494DN-LF-Z to efficiently convert a higher input voltage to a stable, lower output voltage, making it suitable for a variety of power management applications.
Here's a concise summary of its pin functions:
1. SW (Switch Node): Connects to the inductor, allowing current flow for the step-down process.
2. IN (Input Voltage): Supplies the input voltage to the converter.
3. GND (Ground): Ground reference for the device.
4. FB (Feedback): Senses the output voltage for regulation.
5. COMP (Compensation): Used to stabilize the control loop.
6. EN (Enable): Enables or disables the converter.
7. BST (Bootstrap): Provides the necessary voltage to drive the internal high-side MOSFET.
8. SS (Soft Start): Controls the soft start time to limit inrush current.
This configuration allows the MP2494DN-LF-Z to efficiently convert a higher input voltage to a stable, lower output voltage, making it suitable for a variety of power management applications.
Manufacturer
The MP2494DN-LF-Z is manufactured by Monolithic Power Systems (MPS). MPS is a company that specializes in the design and production of high-performance power solutions. Their product offerings include power management integrated circuits (ICs), which are used in a wide range of applications such as computing, consumer electronics, industrial, automotive, and telecommunications. MPS is known for its focus on delivering innovative and efficient power solutions to improve performance and energy efficiency in electronic devices.
Application
The MP2494DN-LF-Z is a synchronous step-down regulator, which is primarily used in applications requiring efficient power conversion. Key application areas include:
1. Consumer Electronics: Power supply for devices like tablets, smartphones, and wearable technology.
2. Telecommunications: Used in network equipment for stable power management.
3. Automotive: Suitable for in-vehicle infotainment systems and other electronic control units (ECUs).
4. Industrial: Employed in control systems and automation equipment for voltage regulation.
5. Computer Systems: Powers components in desktops, laptops, and other computing devices.
Its compact size and high efficiency make it ideal for systems requiring effective power management within constrained spaces.
1. Consumer Electronics: Power supply for devices like tablets, smartphones, and wearable technology.
2. Telecommunications: Used in network equipment for stable power management.
3. Automotive: Suitable for in-vehicle infotainment systems and other electronic control units (ECUs).
4. Industrial: Employed in control systems and automation equipment for voltage regulation.
5. Computer Systems: Powers components in desktops, laptops, and other computing devices.
Its compact size and high efficiency make it ideal for systems requiring effective power management within constrained spaces.
Package
The MP2494DN-LF-Z is typically available in an SOIC-8 package type, which is a Small Outline Integrated Circuit with 8 pins. This package is commonly used for surface-mount technology on PCBs, providing a compact form factor suitable for various applications.
