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Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 2.5V |
| Voltage-Input(Max) | 5.5V |
| Voltage-Output(Min/Fixed) | 0.6V |
| Voltage-Output(Max) | 5V |
| Current-Output | 3A |
| Frequency-Switching | 1.2MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | SOT-23-8 Thin, TSOT-23-8 |
Обзор
Description
The MP2143DJ-LF-Z is a high-frequency, synchronous, step-down switching regulator primarily used in power management applications. It is designed to deliver up to 3A of continuous output current with high efficiency. The device operates with a wide input voltage range, typically from 2.7V to 5.5V, making it suitable for various battery-powered and portable devices.
One of the standout features of the MP2143DJ-LF-Z is its compact size, allowing it to be integrated into space-constrained designs. It employs a constant-on-time (COT) control mode, providing fast transient response and improved stability over a broad range of operating conditions. Additional features include adjustable output voltage, current limiting, and protection mechanisms such as over-voltage and thermal shutdown.
The MP2143DJ-LF-Z is available in a small QFN package and is designed for easy implementation with minimal external components. Its high efficiency and compact size make it ideal for applications such as mobile devices, telecommunications, and consumer electronics.
One of the standout features of the MP2143DJ-LF-Z is its compact size, allowing it to be integrated into space-constrained designs. It employs a constant-on-time (COT) control mode, providing fast transient response and improved stability over a broad range of operating conditions. Additional features include adjustable output voltage, current limiting, and protection mechanisms such as over-voltage and thermal shutdown.
The MP2143DJ-LF-Z is available in a small QFN package and is designed for easy implementation with minimal external components. Its high efficiency and compact size make it ideal for applications such as mobile devices, telecommunications, and consumer electronics.
Equivalent
The MP2143DJ-LF-Z is a step-down converter designed by Monolithic Power Systems. Equivalent products include similar step-down (buck) converters by other manufacturers, such as the LM3671 from Texas Instruments, ADP5301 from Analog Devices, and TPS62130 from Texas Instruments. When selecting an equivalent, ensure that parameters such as input voltage range, output current, switching frequency, and package type match your specific application requirements.
Features
The MP2143DJ-LF-Z is a monolithic step-down switch mode converter with integrated MOSFETs. It offers high efficiency, with up to 95%, and delivers up to 3A continuous output current from a 2.5V to 5.5V input voltage. The device operates with a fixed 3MHz switching frequency, which allows for small external components and reduced system cost. It features a wide output voltage range adjustable via an external resistor divider, making it versatile for various applications.
Key features include a power-good indicator, internal soft-start, and over-current protection. The device also boasts a low dropout mode and a low shutdown current, enhancing battery life in portable applications. It provides a fast transient response and is available in a small, low-profile TSOT23-8 package, making it suitable for space-constrained applications. These features make the MP2143DJ-LF-Z ideal for use in portable devices, battery-powered equipment, and other applications requiring efficient step-down voltage conversion.
Key features include a power-good indicator, internal soft-start, and over-current protection. The device also boasts a low dropout mode and a low shutdown current, enhancing battery life in portable applications. It provides a fast transient response and is available in a small, low-profile TSOT23-8 package, making it suitable for space-constrained applications. These features make the MP2143DJ-LF-Z ideal for use in portable devices, battery-powered equipment, and other applications requiring efficient step-down voltage conversion.
Pinout
The MP2143DJ-LF-Z is a monolithic step-down switch mode converter with integrated internal high-side and low-side power MOSFETs. It is designed to supply continuous output current up to 3A with excellent load and line regulation. The device offers features such as synchronous rectification and operates over a wide input voltage range to optimize the efficiency.
Regarding the pin count and function, the MP2143DJ-LF-Z comes in a 10-pin, 3mm x 3mm QFN package. Key pin functions typically include:
1. VIN: Power input.
2. SW: Switch node, connected to the inductor.
3. EN: Enable pin to turn the device on or off.
4. FB: Feedback pin for output voltage regulation.
5. COMP: Compensation pin for stability.
6. GND: Ground.
7. BST: Bootstrap pin, provides voltage to the high-side gate driver.
8. NC: No connection.
9. VCC: Supply voltage for internal circuits.
10. PGOOD: Power good indicator.
Refer to the specific datasheet of the MP2143DJ-LF-Z for precise pin assignment and configurations.
Regarding the pin count and function, the MP2143DJ-LF-Z comes in a 10-pin, 3mm x 3mm QFN package. Key pin functions typically include:
1. VIN: Power input.
2. SW: Switch node, connected to the inductor.
3. EN: Enable pin to turn the device on or off.
4. FB: Feedback pin for output voltage regulation.
5. COMP: Compensation pin for stability.
6. GND: Ground.
7. BST: Bootstrap pin, provides voltage to the high-side gate driver.
8. NC: No connection.
9. VCC: Supply voltage for internal circuits.
10. PGOOD: Power good indicator.
Refer to the specific datasheet of the MP2143DJ-LF-Z for precise pin assignment and configurations.
Manufacturer
The MP2143DJ-LF-Z is manufactured by Monolithic Power Systems, Inc. (MPS). MPS is a semiconductor company that specializes in high-performance, integrated power solutions. Their products are used in various applications, including automotive, industrial, cloud computing, and consumer electronics. MPS focuses on developing advanced technologies and energy-efficient designs to address the challenges of power management in electronic systems.
Application
The MP2143DJ-LF-Z is a step-down converter designed for efficient power management. Its primary application areas include portable devices such as smartphones and tablets, where space and power efficiency are crucial. Additionally, it can be used in networking equipment, industrial controls, and consumer electronics. The converter is suitable for applications requiring compact size and high-efficiency power delivery, such as battery-powered devices and point-of-load conversions in complex systems. Its wide input voltage range and high switching frequency make it versatile for various electronic applications needing reliable voltage regulation.
Package
The MP2143DJ-LF-Z is available in a TSOT23-8 package type, which is a small outline package with eight leads. This package type is commonly used for surface-mounted devices, offering compact size and efficient heat dissipation suitable for various electronic applications.
