Overview
The LM2586S-5.0 is a step-down (buck) switching regulator produced by Texas Instruments. This integrated circuit is designed to provide a fixed 5.0V output voltage, making it ideal for applications requiring efficient power conversion with minimal external components. The LM2586S-5.0 is part of the LM2586 series, known for its high efficiency and reliability in power management solutions.
Targeted at engineers and designers in industries such as industrial automation, consumer electronics, and automotive electronics, the LM2586S-5.0 stands out for its compact design, wide input voltage range, and robust performance. Its unique selling points include high efficiency, low standby current, and built-in protection features, making it a competitive choice for power supply designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 5.0 | V | Fixed |
| Input Voltage Range | 4.0 to 40 | V | |
| Output Current | 3.0 | A | Max |
| Switching Frequency | 100 | kHz | Typical |
| Efficiency | 90 | % | Typical |
| Operating Temperature Range | -40 to +125 | °C | |
| Package | TO-263 | 5-Pin | |
| Protection Features | Overcurrent, Thermal Shutdown |
Key Features
- High Efficiency: Up to 90% efficiency ensures minimal power loss, making it suitable for battery-powered applications.
- Wide Input Voltage Range: Operates from 4V to 40V, accommodating various power sources.
- Built-in Protection: Includes overcurrent and thermal shutdown features for enhanced reliability.
- Compact Design: Requires minimal external components, reducing PCB footprint and design complexity.
- Low Standby Current: Ideal for applications requiring low power consumption during standby mode.
Applications
The LM2586S-5.0 is widely used in various industries due to its robust performance and versatility. Key application areas include:
- Industrial Automation: Powering sensors, controllers, and other low-power devices in industrial settings.
- Consumer Electronics: Providing efficient power conversion in devices such as routers, set-top boxes, and portable gadgets.
- Automotive Electronics: Supporting infotainment systems, lighting, and other automotive applications requiring stable 5V power.
- Telecommunications: Used in power supplies for communication equipment and networking devices.
Q & A
1. What is the maximum output current of the LM2586S-5.0?
The maximum output current is 3.0A.
2. Can the LM2586S-5.0 operate with an input voltage below 4V?
No, the minimum input voltage is 4V.
3. What is the typical efficiency of the LM2586S-5.0?
The typical efficiency is 90%.
4. Does the LM2586S-5.0 include protection features?
Yes, it includes overcurrent and thermal shutdown protection.
5. What is the switching frequency of the LM2586S-5.0?
The switching frequency is typically 100kHz.
6. What package does the LM2586S-5.0 come in?
It comes in a TO-263 5-pin package.
7. Is the output voltage of the LM2586S-5.0 adjustable?
No, it provides a fixed 5.0V output.
8. Can the LM2586S-5.0 be used in automotive applications?
Yes, it is suitable for automotive electronics.
9. What is the operating temperature range of the LM2586S-5.0?
It operates from -40°C to +125°C.
10. How does the LM2586S-5.0 perform in battery-powered applications?
Its high efficiency and low standby current make it ideal for battery-powered devices.
