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IC REG CTRLR BUCK 8VSSOP
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FabricanteTexas Instruments
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Peça do Fabricante #LM3489MM/NOPB
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Ficha Técnica LM3489MM/NOPB DataSheet
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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 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
Features
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
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
Application
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.