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) | 5V |
| Voltage - Input (Max) | 36V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 36V |
| Current - Output | 600mA |
| Frequency - Switching | 2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
The MP2457GJ-Z is a high-frequency, step-down, switch-mode converter with integrated power MOSFETs. Designed for efficiency and compactness, it converts a high input voltage to a lower output voltage, making it ideal for applications requiring reduced size and increased power density, such as portable devices and distributed power systems. It operates efficiently over a wide input voltage range, offers fast transient response, and includes features like cycle-by-cycle current limiting, thermal shutdown, and output over-voltage protection. The MP2457GJ-Z is recognized for its ease of use, requiring minimal external components, which simplifies the design process and reduces implementation costs. Its compact size and performance make it particularly suited for space-constrained applications where efficiency and reliability are critical.
Equivalent
Equivalent products to the MP2457GJ-Z, a step-down converter, include:
1. LM2596 by Texas Instruments: A popular adjustable step-down voltage regulator.
2. LM2575 by Texas Instruments: Another efficient step-down voltage regulator.
3. XL4015 by XLSEMI: A DC-DC step-down module.
4. TPS54331 by Texas Instruments: A 3-A step-down converter.
5. AP3418 by Diodes Incorporated: A step-down DC-DC converter.
Ensure compatibility by reviewing datasheets and application requirements for each alternative.
1. LM2596 by Texas Instruments: A popular adjustable step-down voltage regulator.
2. LM2575 by Texas Instruments: Another efficient step-down voltage regulator.
3. XL4015 by XLSEMI: A DC-DC step-down module.
4. TPS54331 by Texas Instruments: A 3-A step-down converter.
5. AP3418 by Diodes Incorporated: A step-down DC-DC converter.
Ensure compatibility by reviewing datasheets and application requirements for each alternative.
Features
The MP2457GJ-Z is a step-down (buck) converter from Monolithic Power Systems. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 3.3V to 36V, accommodating various power sources.
2. Output Current: Delivers up to 0.6A of continuous output current, suitable for moderate power applications.
3. Efficiency: Designed for high efficiency, with synchronous rectification to minimize power loss.
4. Switching Frequency: Operates at a fixed 1.2MHz frequency, which helps reduce the size of external components and minimize electromagnetic interference (EMI).
5. Compact Package: Available in a small SOT-23 package, which is ideal for space-constrained designs.
6. Protection Features: Includes protection mechanisms such as over-current protection (OCP), over-temperature protection (OTP), and under-voltage lockout (UVLO).
7. Output Voltage: Adjustable output voltage, allowing flexibility in designing various circuits.
8. Applications: Commonly used in applications such as battery-powered devices, portable electronics, and distributed power systems due to its efficiency and compact size.
These features make the MP2457GJ-Z suitable for efficient voltage regulation in compact applications.
1. Input Voltage Range: It supports a wide input voltage range from 3.3V to 36V, accommodating various power sources.
2. Output Current: Delivers up to 0.6A of continuous output current, suitable for moderate power applications.
3. Efficiency: Designed for high efficiency, with synchronous rectification to minimize power loss.
4. Switching Frequency: Operates at a fixed 1.2MHz frequency, which helps reduce the size of external components and minimize electromagnetic interference (EMI).
5. Compact Package: Available in a small SOT-23 package, which is ideal for space-constrained designs.
6. Protection Features: Includes protection mechanisms such as over-current protection (OCP), over-temperature protection (OTP), and under-voltage lockout (UVLO).
7. Output Voltage: Adjustable output voltage, allowing flexibility in designing various circuits.
8. Applications: Commonly used in applications such as battery-powered devices, portable electronics, and distributed power systems due to its efficiency and compact size.
These features make the MP2457GJ-Z suitable for efficient voltage regulation in compact applications.
Pinout
The MP2457GJ-Z is a monolithic step-down switch mode converter with an integrated internal high-side high voltage power MOSFET. It is specifically designed for applications requiring a constant output current. The device typically comes in a SOT-23-6 package, which features 6 pins.
The function of each pin is generally as follows:
1. SW (Pin 1): Switch Output. Connects to the inductor and freewheeling diode.
2. GND (Pin 2): Ground.
3. FB (Pin 3): Feedback. Used to regulate the output voltage by connecting to a resistor divider network.
4. EN (Pin 4): Enable. Used to enable or disable the converter.
5. VIN (Pin 5): Input Voltage. Powers the device.
6. BST (Pin 6): Bootstrap. A capacitor is connected between this pin and the SW pin to drive the gate of the internal MOSFET.
The MP2457GJ-Z is optimized for high efficiency and compact design, making it suitable for various applications such as distributed power systems, battery chargers, and portable instruments.
The function of each pin is generally as follows:
1. SW (Pin 1): Switch Output. Connects to the inductor and freewheeling diode.
2. GND (Pin 2): Ground.
3. FB (Pin 3): Feedback. Used to regulate the output voltage by connecting to a resistor divider network.
4. EN (Pin 4): Enable. Used to enable or disable the converter.
5. VIN (Pin 5): Input Voltage. Powers the device.
6. BST (Pin 6): Bootstrap. A capacitor is connected between this pin and the SW pin to drive the gate of the internal MOSFET.
The MP2457GJ-Z is optimized for high efficiency and compact design, making it suitable for various applications such as distributed power systems, battery chargers, and portable instruments.
Manufacturer
The MP2457GJ-Z is manufactured by Monolithic Power Systems (MPS). MPS is a company that specializes in the design, development, and manufacturing of high-performance analog and mixed-signal semiconductors. Their products are widely used across various industries, including automotive, industrial, cloud computing, telecom infrastructures, consumer electronics, and other applications that require efficient power management solutions. The company is recognized for its focus on providing highly integrated solutions that offer greater energy efficiency and performance.
Application
The MP2457GJ-Z is a DC-DC buck converter designed for efficient step-down voltage regulation. Its application areas include power management in consumer electronics, automotive electronics, industrial control systems, and telecommunications equipment. It is particularly suitable for use in applications requiring high efficiency and compact design, such as portable devices, embedded systems, and distributed power systems. The MP2457GJ-Z can also be used in battery-powered applications, providing stable voltage output while extending battery life due to its low power consumption and high efficiency.
Package
The MP2457GJ-Z is typically available in a SOT-23-6 package. This is a small-outline, surface-mount package with six pins, commonly used for compact electronic components.
