MP28251GD-Z

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MP28251GD-Z

IC REG BUCK ADJ 4A 14QFN

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Spezifikationen

Part Status Not For New Designs
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4.75V
Voltage - Input (Max) 20V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 17V
Current - Output 4A
Frequency - Switching 500kHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 14-PowerVFQFN
Supplier Device Package 14-QFN (2x3)
Base Product Number MP28251

Übersicht

Description

The MP28251GD-Z is a high-efficiency, step-down, DC-DC converter designed to provide a compact solution for power supply applications. It integrates a high-side switch and a low-side synchronous rectifier, which reduces the need for external diodes, enhancing efficiency and minimizing component count. The device typically operates with an input voltage range suited for various electronic devices and delivers a fixed or adjustable output voltage, making it versatile for different applications. It supports a high switching frequency, allowing for smaller external components and a more compact design. Additionally, the MP28251GD-Z includes features like over-current protection, thermal shutdown, and under-voltage lockout, ensuring reliable and safe operation. The compact package design further aids in its integration into space-constrained environments, making it ideal for use in consumer electronics, telecommunications, and other portable devices.

Features

The MP28251GD-Z is a high-performance, monolithic step-down switching converter from MPS (Monolithic Power Systems). Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 4.5V to 36V, making it versatile for various applications.
2. Output Current: It can deliver up to 2A of continuous output current.
3. Efficiency: The device is designed for high efficiency, thanks to its synchronous rectification feature.
4. Switching Frequency: It operates at a fixed 500kHz switching frequency, enabling compact external components.
5. Protection Features: The MP28251GD-Z includes protection mechanisms such as thermal shutdown, cycle-by-cycle over-current protection, and short-circuit protection.
6. Soft Start: The converter features a soft-start function to prevent inrush current during startup.
7. Compensation: External compensation allows for flexibility in optimizing the transient response.
8. Package: It comes in a compact and thermally enhanced SOIC-8EP package, facilitating easy integration into various designs.
These characteristics make the MP28251GD-Z suitable for applications like distributed power systems, battery-powered devices, and industrial equipment.

Package

The MP28251GD-Z is a DC-DC buck converter integrated circuit, typically housed in a QFN (Quad Flat No-leads) package. This type of package is compact, offering efficient heat dissipation and minimal inductance, making it suitable for high-performance applications.

Pinout

The MP28251GD-Z is a monolithic step-down switch mode converter from Monolithic Power Systems. It is designed to provide a high-efficiency power solution, usually for applications like point of load (POL) for FPGAs, ASICs, or DSPs.
Regarding its pin count and function:
- Pin Count: The MP28251GD-Z typically comes in a small QFN (Quad Flat No-leads) package, commonly with 16 pins.

- Function: The device integrates a control circuit and a power MOSFET, offering synchronous rectification for improved efficiency. It can deliver up to 3A continuous output current. The MP28251GD-Z features include internal soft-start, power-on reset, and a power-good output. It supports adjustable output voltage, current limiting, and thermal shutdown protection, making it suited for various applications that require a stable and efficient power supply.
For detailed pin configuration and specific electrical characteristics, referring to the datasheet provided by Monolithic Power Systems would be necessary.

Manufacturer

The MP28251GD-Z is manufactured by Monolithic Power Systems (MPS). MPS is a semiconductor company known for designing and developing high-performance power management solutions. They focus on creating integrated circuits (ICs) for various applications, including consumer electronics, industrial, automotive, and telecommunications. MPS is recognized for its expertise in producing innovative and efficient power solutions that help minimize energy consumption and improve overall performance in electronic systems.

Application

The MP28251GD-Z is a DC-DC buck converter, primarily used in power management applications. It is suitable for use in various electronic devices and systems requiring efficient voltage regulation and conversion. Typical application areas include consumer electronics, telecommunications, industrial equipment, and computing devices. It is often utilized in systems needing reliable step-down voltage conversion from a higher voltage supply to a lower voltage required by processors, memory modules, and other components.

Equivalent

The MP28251GD-Z is a step-down converter from MPS (Monolithic Power Systems). Equivalent products from other manufacturers include the TPS54331 from Texas Instruments, LM2596 from Texas Instruments, and the LM2675 from Texas Instruments. These alternatives offer similar functionalities, such as step-down (buck) conversion, and are suitable for applications requiring efficient power management. Always ensure to check datasheets for equivalent specifications like input/output voltage and current ratings when considering replacements.

Versand

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