Overview
The LM2585S-3.3/NOPB is a high-efficiency step-down (buck) switching regulator produced by Texas Instruments. This product is designed to provide a fixed 3.3V output voltage, making it ideal for applications requiring stable and efficient power conversion. It is widely used in industrial, automotive, and consumer electronics due to its compact design, high efficiency, and robust performance. The LM2585S-3.3/NOPB is particularly suited for applications where space and power efficiency are critical, offering a unique combination of reliability and cost-effectiveness.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 3.3 | V | Fixed |
| Input Voltage Range | 4.5 to 40 | V | |
| Output Current | 3 | A | Max |
| Switching Frequency | 100 | kHz | Typical |
| Efficiency | 90 | % | Typical |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | TO-263 | Also known as D2PAK | |
| Regulation | ±2 | % | Line and Load |
| 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 4.5V to 40V, accommodating a variety of input sources.
- Compact Design: TO-263 package allows for space-saving PCB layouts.
- Robust Protection: Includes overcurrent and thermal shutdown features for enhanced reliability.
- Fixed Output Voltage: Eliminates the need for external voltage-setting components, simplifying design.
Applications
The LM2585S-3.3/NOPB is widely used in various industries due to its versatility and efficiency. Key applications include:
- Industrial Automation: Powering sensors, controllers, and communication modules.
- Automotive Electronics: Providing stable power for infotainment systems, lighting, and ECUs.
- Consumer Electronics: Used in portable devices, smart home systems, and IoT devices.
- Telecommunications: Supporting power management in networking equipment and base stations.
Q & A
1. What is the maximum input voltage for the LM2585S-3.3/NOPB?
The maximum input voltage is 40V.
2. Can this regulator handle a 5V input to produce a 3.3V output?
Yes, it can operate with input voltages as low as 4.5V, making it suitable for 5V input applications.
3. What is the typical efficiency of the LM2585S-3.3/NOPB?
The typical efficiency is 90%.
4. Does this regulator require external components for voltage regulation?
No, it provides a fixed 3.3V output, eliminating the need for external voltage-setting components.
5. What protection features are included?
It includes overcurrent and thermal shutdown protection.
6. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
7. Is the LM2585S-3.3/NOPB suitable for automotive applications?
Yes, its robust design and wide input voltage range make it ideal for automotive electronics.
8. What package does this regulator come in?
It comes in a TO-263 (D2PAK) package.
9. Can it be used in battery-powered devices?
Yes, its high efficiency makes it suitable for battery-powered applications.
10. What is the maximum output current?
The maximum output current is 3A.
