LM3489MM/NOPB

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IC REG CTRLR BUCK 8VSSOP

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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) 4.5V ~ 35V
Frequency - Switching Up to 1MHz
Duty Cycle (Max) 100%
Synchronous Rectifier No
Clock Sync No
Control Features Current Limit, Enable
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-VSSOP
Base Product Number LM3489
Grade Automotive
Qualification AEC-Q100

Visão Geral

Description

The LM3489MM/NOPB is a high-efficiency, step-down (buck) voltage regulator developed by Texas Instruments. It is designed to provide a regulated output voltage while maintaining high performance and low power consumption. Key features include an input voltage range of 4.5V to 28V, a maximum output current of 1.5A, and an integrated switching frequency of 300 kHz, which can be adjusted for specific applications.
The device incorporates a built-in power switch and offers a range of protection features, including over-temperature, over-current, and under-voltage lockout protection, ensuring reliable operation in various conditions. The LM3489 includes adjustable output voltage settings, enabling customization for specific needs.
It is particularly suited for battery-powered devices, industrial applications, and portable electronics, providing efficiency up to 95% and low quiescent current. The package type is a 5-pin VSSOP, facilitating compact designs. Overall, the LM3489MM/NOPB is an effective solution for designers seeking a reliable and efficient buck converter.

Equivalent

The LM3489MM/NOPB is a voltage regulator, specifically a step-down (buck) DC-DC converter. Equivalent products include the LM2596, LM2675, and MIC2941. These alternatives may vary in specifications like output current, voltage range, and package types, so it's essential to review the datasheets for compatibility with your application.

Features

The LM3489MM/NOPB is a versatile and high-performance switching regulator designed for various applications. Key features include:
1. Wide Input Voltage Range: Operates from 5V to 60V, making it suitable for various power supply applications.
2. Adjustable Output Voltage: Provides flexibility with an adjustable output voltage range from 1.23V to 40V.
3. High Efficiency: Achieves efficiencies up to 95%, which helps in reducing heat generation and improving overall system reliability.
4. Integrated Switching MOSFETs: Reduces component count and simplifies design.
5. Current Mode Control: Ensures stable operation across varying load conditions and enhances transient response.
6. Protection Features: Includes thermal shutdown, current limiting, and undervoltage lockout for enhanced reliability.
7. Compact Package: Available in a surface-mount SOIC-8 package, making it suitable for space-constrained applications.
8. Frequency Adjustable: Offers an adjustable switching frequency, allowing optimization for specific requirements.
These features make the LM3489MM/NOPB ideal for industrial, automotive, and consumer electronics applications.

Pinout

The LM3489MM/NOPB is a high-voltage, step-down (buck) switching regulator with a pin count of 8.
Pin Functions:
1. VIN: Input voltage supply.
2. GND: Ground reference.
3. SW: Switch node connection to the inductor.
4. VOUT: Output voltage feedback.
5. COMP: Compensation network connection for stability.
6. Rset: Resistor connection for setting the output voltage.
7. CSN: Current sense negative input.
8. CSP: Current sense positive input.
This device is designed for efficient power management in various applications, with features such as adjustable output voltage and thermal shutdown protection.

Manufacturer

The LM3489MM/NOPB is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of analog and digital electronic components, including integrated circuits (ICs), processors, and sensors. The company is particularly known for its innovations in analog technology, embedded processing, and digital signal processing (DSP). Founded in 1930, TI serves various industries, including consumer electronics, automotive, industrial, and communications. Their products support applications such as power management, signal processing, and microcontrollers, reflecting their commitment to advancing technology and providing solutions for engineers and designers worldwide.

Application

The LM3489MM/NOPB is a versatile power management IC primarily used in applications such as:
1. DC-DC Converters: For step-down (buck) and step-up (boost) voltage regulation.
2. LED Drivers: Controlling the brightness and efficiency of LED lighting.
3. Battery Management Systems: Ensuring optimal charging and discharging of batteries.
4. Power Supply Modules: Integrated into power supply designs for various electronic devices.
5. Industrial Automation: Used in control systems for machinery and robotics.
6. Consumer Electronics: Found in devices requiring efficient power conversion, like smartphones and tablets.
Its high efficiency, adjustable outputs, and integrated features make it suitable for these diverse applications.

Package

The LM3489MM/NOPB is packaged in a TSSOP-16 (Thin Shrink Small Outline Package) format.

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