LM5017SD

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LM5017SD

+Nomenclature

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

  • FabricantTexas Instruments

  • Pièce fabricant #LM5017SD

  • En stock6600

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Présentation

Description

The LM5017SD is a buck (step-down) voltage regulator designed for efficient power conversion in electronic circuits. It is part of Texas Instruments' Simple Switcher family, which emphasizes ease of use in power supply design. The device operates over a wide input voltage range, typically from 7.5 V to 100 V, and can deliver an output current of up to 600 mA. The LM5017SD integrates a high-side N-channel MOSFET and a current-mode control scheme, which contributes to its stability and performance.
Key features include a constant switching frequency, adjustable output voltage, integrated protection mechanisms like thermal shutdown and current limiting, and a power-good flag to indicate output status. The package type, "SD," refers to a specific small-outline transistor package that supports thermal management and compact design objectives. With its versatility, high efficiency, and robust feature set, the LM5017SD is suitable for automotive, industrial, and telecommunications applications, where reliability and efficiency are critical.

Equivalent

The LM5017SD is a buck voltage regulator from Texas Instruments. Equivalent products may include:
1. LM2676 by Texas Instruments: A simple switcher buck regulator.
2. LT3501 by Analog Devices: Dual channel step-down regulator.
3. MC34063 by ON Semiconductor: Popular buck/boost/inverting DC-DC converter.
4. TPS54331 by Texas Instruments: 3-A step-down converter.
5. MP1584 by MPS: A high-frequency step-down switching regulator.
These alternatives vary in specific features; review datasheets for compatibility.

Features

The LM5017SD is a step-down switching regulator featuring several key attributes:
1. Wide Input Voltage Range: Operates from 7.5V to 100V, making it suitable for a variety of industrial and automotive applications.
2. Integrated N-Channel MOSFET: Includes a 100V power MOSFET which facilitates high-efficiency voltage conversion.
3. Adjustable Output Voltage: Allows flexible output voltage customization through external resistors.
4. High Efficiency: Capable of delivering high efficiency, reducing energy consumption and heat generation.
5. Low Standby Current: Low input quiescent current (approximately 1mA) that helps in energy conservation during standby mode.
6. Current-Mode Control: Provides simple loop compensation and fast transient response.
7. Protection Features: Built-in features like thermal shutdown, current limiting, and an undervoltage lockout to enhance reliability and durability.
8. Compact Package: Offered in a small, thermally-enhanced 8-pin SO PowerPAD package.
These features make the LM5017SD ideal for efficient power conversion in space-constrained and high-voltage environments.

Pinout

The LM5017SD is a high-voltage buck regulator from Texas Instruments, designed to convert a higher input voltage to a lower output voltage. It is available in a 6-pin WSON (Small Outline No-lead) package. Here is a brief overview of the pin functions:
1. BOOT (Pin 1): Connects a bootstrap capacitor to provide a gate drive voltage for the high-side N-channel MOSFET.
2. SW (Pin 2): Switch node, connected to the inductor, and is the switching output.
3. GND (Pin 3): Ground terminal.
4. FB (Pin 4): Feedback input, connected to the output voltage for regulation.
5. VCC (Pin 5): Output of the internal high-voltage linear regulator. This supplies power to the internal circuitry and can power external low-voltage loads.
6. VIN (Pin 6): Input voltage supply.
These pins work together to efficiently step down high DC input voltages to lower DC output voltages for various applications.

Manufacturer

The LM5017SD is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments is known for designing and manufacturing a wide range of electronic products, including analog and embedded processing chips. The company primarily focuses on developing technologies that are used in a variety of applications across industries such as automotive, industrial, personal electronics, and communications equipment. TI is recognized for its innovation in electronic design and its contributions to various technological advancements.

Application

The LM5017SD is a step-down switching regulator commonly used in various applications. Its typical areas include industrial power supplies, distributed power systems, battery-powered devices, automotive electronics, and telecom equipment. It is well-suited for applications requiring a wide input voltage range (up to 100V) and efficient power conversion. The LM5017SD is also used in LED drivers, point-of-load converters, and in systems where space is limited, thanks to its compact package size. Its robustness and reliability make it ideal for harsh environments and applications demanding high efficiency and low standby power.

Package

The LM5017SD is a buck regulator integrated circuit from Texas Instruments. It comes in a WSON (Very Thin Quad Flat No-Lead) package type, specifically a 8-pin WSON package. This package is designed for efficient power management with a compact footprint, suiting applications requiring space efficiency and thermal performance.

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