MP2978GU

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MP2978GU

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規格

Manufacturer JLCPCB Assembly
Package QFN-40-5X5

概述

Description

The MP2978GU is a high-efficiency, monolithic step-down voltage regulator designed for applications requiring a compact power solution. It features a wide input voltage range (typically up to 30V) and can deliver output currents up to 3A. The device employs a current mode control scheme, which enhances stability and transient response, making it suitable for various applications like consumer electronics, automotive, and industrial systems.
Key features include adjustable output voltage with a minimum of 0.8V, integrated high-side and low-side MOSFETs, built-in over-current, over-voltage, and thermal shutdown protection. The MP2978GU also supports frequency compensation and offers a switching frequency adjustable via an external resistor.
Its small package size (SOP-8) allows for space-saving designs, making it ideal for compact embedded applications. Overall, the MP2978GU is an efficient and reliable choice for designers looking to implement effective power management in their systems.

Features

The MP2978GU is a high-performance, step-down (buck) switching regulator designed for various applications. Key features include:
1. Input Voltage Range: Operates from 4.5V to 28V, suitable for a wide range of power sources.
2. Output Current: Capable of delivering up to 3A output current.
3. Adjustable Output Voltage: Output voltage can be set from 0.8V to 20V using external resistors.
4. High Efficiency: Offers efficiencies up to 95%, which helps in reducing heat and improving battery life.
5. Built-in Protection: Includes over-voltage, over-current, and thermal shutdown protections for enhanced reliability.
6. Switching Frequency: Operates at a fixed frequency of 500kHz, enabling smaller external components.
7. Soft Start: Features a soft-start function to prevent inrush current during startup.
8. Compact Package: Available in a thermally-enhanced SOP-8 package, facilitating space-saving designs.
These features make the MP2978GU ideal for applications like point-of-load conversion, power management in portable systems, and industrial equipment.

Package

The MP2978GU is available in a 10-pin MSOP (Mini Small Outline Package) package type, which is designed for efficient thermal performance and space-saving in electronic designs.

Pinout

The MP2978GU is a step-down (buck) voltage regulator with a pin count of 8.
Pin Functions:
1. VIN: Input voltage supply.
2. SW: Switch node that connects to the inductor.
3. GND: Ground reference.
4. COMP: Compensation node for external components to stabilize the control loop.
5. FB: Feedback pin for voltage regulation.
6. EN: Enable pin to turn the device on or off.
7. SS: Soft-start pin to control the start-up time.
8. VOUT: Output voltage.
The MP2978GU is designed to provide efficient power conversion with adjustable output voltage and features such as overcurrent protection, thermal shutdown, and frequency compensation.

Manufacturer

The MP2978GU is manufactured by Monolithic Power Systems (MPS), a semiconductor company. MPS specializes in designing and developing high-performance analog and mixed-signal integrated circuits. Founded in 1997, the company focuses on power solutions for a variety of applications, including automotive, industrial, telecommunications, and consumer electronics. MPS is known for its innovative approach to power management, providing efficient solutions that enhance performance and reduce energy consumption. The MP2978GU is a step-down (buck) converter, showcasing MPS's expertise in power management ICs.

Application

The MP2978GU is a step-down (buck) DC-DC converter used in various applications, including LED drivers, portable devices, consumer electronics, battery-powered systems, and industrial equipment. Its features, like high efficiency and adjustable output voltage, make it suitable for powering microcontrollers, sensors, and other peripherals in compact electronic designs.

Equivalent

The MP2978GU is a step-down voltage regulator. Equivalent products include the LM2596, LM2675, LTC3800, TPS5430, and MIC29302. These alternatives offer similar functionalities, including adjustable output voltage and switching capabilities, but may have different specifications such as input voltage range or output current. Always check the datasheets for compatibility in your specific application.

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