LM25148RGYR

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42-V SYNCHRONOUS BUCK DC/DC CONT

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Especificações

Atributo Valor
Part Status Active
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 3.5V ~ 42V
Frequency - Switching 100kHz ~ 2.2MHz
Duty Cycle (Max) 100%
Synchronous Rectifier Yes
Clock Sync Yes
Control Features Current Limit, Power Good, Ramp, Soft Start
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Supplier Device Package 24-VQFN (5.5x3.5)
Base Product Number LM25148

Visão Geral

Description

The LM25148RGYR is a high-performance, synchronous buck converter designed for efficient DC-DC conversion. It is part of the LM25148 family and is commonly used in power management applications for various electronic devices, such as computers, communication equipment, and industrial systems.
Key features of the LM25148 include a wide input voltage range, typically from 4.5V to 60V, and adjustable output voltage settings. It supports high efficiency, often exceeding 90%, which helps reduce heat generation and improves overall system reliability. The device includes integrated FETs, current mode control, and various protection features like overvoltage, undervoltage, and overcurrent protection.
The LM25148RGYR is known for its compact package, making it suitable for space-constrained applications. Its versatility in handling different loads and conditions makes it a popular choice among engineers for designing reliable power supply circuits.

Equivalent

The LM25148RGYR is a high-performance DC-DC step-down regulator. Equivalent products include the TPS563201, MP1584, LTC3862, and RT8293. These alternatives offer similar functionalities such as adjustable output voltage and current capabilities. Always check the specific parameters, features, and pin configurations to ensure compatibility with your design requirements.

Features

The LM25148RGYR is a high-performance step-down (buck) DC-DC regulator designed for use in a variety of applications. Key features include:
1. Input Voltage Range: Supports a wide input voltage range from 4.5V to 60V, making it suitable for automotive and industrial applications.

2. Output Current: Delivers up to 3A of continuous output current with high efficiency.
3. Adjustable Output Voltage: Allows for a customizable output voltage from 0.8V to 15V.
4. Integrated Compensation: The regulator incorporates internal compensation, simplifying design and enhancing stability.
5. Thermal Protection: Features thermal shutdown and current limiting for enhanced protection.
6. Low Quiescent Current: Offers low quiescent current, which improves battery life in portable applications.
7. Switching Frequency: Operates at a fixed switching frequency, typically around 340 kHz, which helps in minimizing external component sizes.
8. Package: Available in an HTQFP (leaded) package, suitable for various PCB layouts.
These features make the LM25148RGYR ideal for power supply solutions in automotive, industrial, and consumer electronic applications.

Pinout

The LM25148RGYR is a high-performance buck converter with a 32-pin HTQFP (Thin Quad Flat Package) package. Its primary function is to provide efficient DC-DC conversion for power management applications, specifically for step-down (buck) regulation.
Key features include:
- Input voltage range: 4.5V to 60V
- Output current: up to 3A
- Integrated features such as peak current mode control, adjustable output voltage, and protection mechanisms (overcurrent, overvoltage, thermal shutdown).
The pin configuration includes power input, ground, output voltage, compensation network, switching node, and various control pins for enable, frequency setting, and feedback. This configuration allows for versatile applications in industrial, automotive, and telecom sectors.

Manufacturer

The LM25148RGYR is manufactured by Texas Instruments (TI), a global semiconductor company known for designing and producing a wide range of analog, embedded processing, and digital signal processing technologies. Founded in 1930 and headquartered in Dallas, Texas, TI serves various industries, including automotive, industrial, communications, and consumer electronics.
Texas Instruments is recognized for its innovation in analog and mixed-signal technologies, which are essential for a multitude of applications such as power management, data converters, and microcontrollers. The LM25148RGYR is a high-performance step-down (buck) regulator designed for power management applications, providing efficiency and performance for various electronic devices. TI is also known for its commitment to research and development, aiming to enhance the capabilities of electronic systems across numerous sectors.

Application

The LM25148RGYR is a high-performance, integrated DC-DC buck controller primarily used in applications such as power management for industrial automation, telecommunications, and consumer electronics. It is suitable for providing efficient power supply solutions in systems requiring high current and excellent transient response. Typical application areas include powering FPGAs, microcontrollers, and processors, as well as in distributed power architectures. Its features enable adaptability in battery-powered devices and electric vehicles, ensuring reliable and efficient energy conversion in diverse environments.

Package

The LM25148RGYR is packaged in a HTQFP-32 (Heat Sink Thin Quad Flat Pack) type. This package features a compact design suitable for high-performance applications, with multiple pins for efficient electrical connections.

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