MP24943DN-LF-Z

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MP24943DN-LF-Z

IC REG BUCK ADJUSTABLE 3A 8SOIC

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4.5V
Voltage-Input(Max) 55V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 45V
Current-Output 3A
Frequency-Switching 100kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width) Exposed Pad

概述

Description

The MP24943DN-LF-Z is a DC-DC step-down converter typically used in electronic applications requiring efficient voltage regulation. It is designed to provide a stable output voltage from a higher input voltage source, making it ideal for various power management tasks in electronic devices. The device features a wide input voltage range, high efficiency, and low quiescent current, which contributes to reduced power loss and extended battery life in portable devices.
Key features of the MP24943DN-LF-Z include its high switching frequency, which allows the use of smaller external components, leading to a more compact design. Additionally, it offers protections such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown to ensure reliable operation. The package is often compact, suitable for space-constrained applications.
Due to its efficient performance and reliability, the MP24943DN-LF-Z is commonly used in consumer electronics, telecommunications, and industrial applications. Its flexibility in handling various input voltages and delivering stable output makes it a versatile choice for designers seeking robust power management solutions.

Features

The MP24943DN-LF-Z is a high-frequency, step-down, switching regulator that features a wide 4.5V to 36V input voltage range, making it suitable for a variety of applications. It can deliver up to 3A of continuous output current with a peak efficiency of 95%. The device integrates both high-side and low-side MOSFETs, which reduces external component count and enhances efficiency.
Key features include a 340kHz fixed switching frequency, which helps in minimizing the size of external components and allows for a compact PCB layout. It also provides protection features such as over-current protection with a cycle-by-cycle limit, thermal shutdown, and under-voltage lockout to ensure robust performance under various conditions.
The MP24943DN-LF-Z offers a soft-start feature to prevent inrush current during startup. It also includes an adjustable output voltage via an external resistor divider, providing flexibility for various voltage requirements. The device is typically housed in a thermally enhanced SOIC-8 package, which aids in efficient heat dissipation. Overall, the MP24943DN-LF-Z is designed for high reliability and efficiency in power management applications.

Package

The MP24943DN-LF-Z is a step-down converter, and its package type is a SOIC (Small Outline Integrated Circuit) with an exposed pad for improved thermal performance. This packaging allows for efficient heat dissipation and is suitable for surface-mount technology.

Pinout

The MP24943DN-LF-Z is a monolithic step-down switch mode converter with an integrated switch. It typically comes in a 3mm x 3mm 10-pin QFN package. This device is designed to regulate output voltages down to as low as 0.8V from an input voltage supply as high as 55V, making it suitable for a variety of applications.
Here is a brief overview of its pin functions:
1. VIN: Input voltage supply.
2. SW: Switch output for connecting the inductor.
3. GND: Ground.
4. FB: Feedback input for setting the output voltage.
5. EN: Enable pin to turn the device on or off.
6. COMP: Compensation pin for stability and transient response.
7. LDO: Internal LDO output.
8. BST: Bootstrap input for driving the gate of the internal high-side MOSFET.
9. VCC: Output of the internal regulator.
10. RT: Resistor timing pin to set the switching frequency.
This concise overview provides the essential information about the MP24943DN-LF-Z's pin count and functions.

Manufacturer

The MP24943DN-LF-Z is manufactured by Monolithic Power Systems (MPS). MPS is a company specializing in the design and manufacturing of high-performance power solutions. They provide a wide range of power products including DC-DC converters, LED drivers, battery management systems, and motor drivers. MPS is known for its advanced semiconductor technologies and innovative power management solutions, catering to industries such as consumer electronics, automotive, industrial, and telecommunications.

Application

The MP24943DN-LF-Z is a step-down converter IC often used in applications requiring efficient voltage regulation. Its application areas include distributed power systems, battery-powered devices, and point-of-load regulation for DSPs, FPGAs, and ASICs. It is also suitable for consumer electronics, industrial controls, and telecommunications equipment where compact size and high efficiency are crucial.

Equivalent

The MP24943DN-LF-Z is a buck converter from Monolithic Power Systems. Equivalent products would include similar step-down (buck) converters with comparable input voltage range, output current capability, and features. Alternatives might include the LM2596 from Texas Instruments, AP1509 from Diodes Incorporated, or the XL4015 from XLSEMI, depending on specific requirements such as efficiency, package type, and additional functionalities. Always verify compatibility in terms of electrical specifications and design requirements.

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