LM5017MRX

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LM5017MRX

+Nomenclature

Switching Voltage Regulators STEP-DOWN REGULATOR - 100V, 600MA CONSTANT ON-TIME SYNCHRONOUS BUCK REGULATOR

  • FabricantTexas Instruments

  • Pièce fabricant #LM5017MRX

  • En stock4039

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Présentation

Description

The LM5017MRX is a step-down DC-DC regulator from Texas Instruments, designed for power conversion applications. This integrated circuit is part of the SIMPLE SWITCHER® series, which aims to simplify the design of power supply systems. The LM5017MRX operates with an input voltage range of 7.5V to 100V, making it suitable for a wide array of applications, including industrial and automotive environments.
Key features of the LM5017MRX include a 600 mA continuous output current capability, integrated high-side and low-side power MOSFETs, and a constant on-time control mode. This control mode ensures fast transient response and simplifies loop compensation, offering high efficiency over a wide load range. It also includes features like internal soft-start, thermal shutdown, and current limit protection.
The LM5017MRX is encapsulated in a thermally enhanced, 8-pin VSSOP package for efficient heat dissipation. Its compact size and high performance make it an excellent choice for designers looking to implement efficient, reliable DC-DC conversion solutions.

Equivalent

The LM5017MRX is a wide input voltage range buck regulator from Texas Instruments. Equivalent products include:
1. LM5018 (Texas Instruments) – Offers similar wide input voltage range and features.
2. LT3999 (Analog Devices) – Provides similar high voltage and functionality.
3. MIC28512-2YFL (Microchip Technology) – Another option with comparable specifications.
4. LM5160 (Texas Instruments) – Offers similar buck converter functionality with a wide voltage range.
Always check the specific requirements and datasheets to ensure compatibility.

Features

The LM5017MRX is a step-down switching regulator from Texas Instruments designed for high-efficiency power conversion. Key features include:
1. Wide Input Voltage Range: Operates from 7.5V to 100V, suitable for a variety of applications.
2. Integrated Power MOSFET: Features a 100V, N-channel MOSFET with a 450 mA peak current limit.
3. Adjustable Output Voltage: Supports output voltages from 1.225V to 100V.
4. High Efficiency: Utilizes a constant on-time (COT) control scheme for excellent efficiency across different loads.
5. Low Quiescent Current: Consumes only 30 μA during operating mode, reducing power loss.
6. Frequency Adjustable: Switching frequency can be set between 50 kHz and 1 MHz for flexibility in design and efficiency.
7. Protection Features: Includes cycle-by-cycle current limiting, thermal shutdown, and an adjustable soft-start.
8. Package: Offered in an 8-pin SO PowerPAD package, enhancing thermal performance.
These features make the LM5017MRX ideal for industrial, automotive, and telecom applications requiring robust and efficient power management solutions.

Pinout

The LM5017MRX is a high-voltage, non-synchronous buck switching regulator from Texas Instruments. It is commonly used for step-down power conversion. The LM5017MRX comes in a 8-pin MSOP PowerPAD package.
Here is a brief overview of the pin functions:
1. SW (Pin 1): Switch Node - Connects to the inductor and the diode.
2. BST (Pin 2): Boot-Strap - Connects to an external capacitor to supply the high-side gate drive.
3. RCL (Pin 3): Current Limit Resistor - Sets the peak current limit.
4. RT (Pin 4): Timing Resistor - Sets the switching frequency.
5. SGND (Pin 5): Signal Ground - Ground reference for the internal circuit.
6. FB (Pin 6): Feedback - Connects to the output voltage divider to regulate the output voltage.
7. VCC (Pin 7): Internal Regulator Output - Provides power to the internal circuitry.
8. VIN (Pin 8): Input Voltage - Connects to the input power supply.
These pins provide control and feedback for efficient regulation, making the LM5017MRX suitable for various high-voltage applications.

Manufacturer

The LM5017MRX is a product manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits. They provide solutions for a wide range of applications, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is known for its focus on innovation and its extensive portfolio of analog and embedded processing products.

Application

The LM5017MRX is a high-voltage buck regulator designed for applications requiring efficient step-down conversion from a high input voltage. Key application areas include:
1. Telecommunications: Powering equipment in telecom infrastructure where high voltage distribution is common.
2. Industrial Automation: Used in factory equipment requiring robust power supplies.
3. Automotive Systems: Suitable for systems that need to convert vehicle battery voltage to lower levels.
4. HVAC Systems: Provides efficient power conversion in heating, ventilation, and air conditioning units.
5. Smart Grid and Metering: Powers devices within advanced metering infrastructure and smart grid technology.
6. LED Lighting: Supplies power for LED drivers in high-voltage applications.
Its wide input voltage range and high efficiency make it versatile for various high-voltage, low-power applications.

Package

The LM5017MRX is a buck regulator from Texas Instruments, and it is available in a 8-pin WSON (Wettable Flank Small Outline No-lead) package.