Overview
The LM2587SX-3.3 is a high-efficiency, step-up/step-down switching regulator produced by Texas Instruments. Designed for applications requiring a regulated 3.3V output, this component is part of the LM2587 series, known for its robust performance and versatility. The LM2587SX-3.3 is ideal for use in power supply designs for industrial, automotive, and consumer electronics, offering a compact and efficient solution for voltage regulation. Its unique selling points include high efficiency, wide input voltage range, and integrated protection features, making it a competitive choice in the market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 3.3 | V | Fixed |
| Input Voltage Range | 4V to 40V | V | Wide range |
| Output Current | 5 | A | Max |
| Switching Frequency | 100 | kHz | Typical |
| Efficiency | 90 | % | Typical |
| Operating Temperature Range | -40°C to +125°C | °C | Industrial grade |
| Package | TO-263 | - | Surface mount |
| Protection Features | Overcurrent, Overtemperature | - | Integrated |
Key Features
- High Efficiency: Achieves up to 90% efficiency, reducing power loss and heat generation.
- Wide Input Voltage Range: Supports input voltages from 4V to 40V, making it versatile for various applications.
- Integrated Protection: Includes overcurrent and overtemperature protection for enhanced reliability.
- Compact Design: Available in a TO-263 package, suitable for space-constrained applications.
- Fixed Output Voltage: Provides a stable 3.3V output, simplifying design and reducing external components.
Applications
The LM2587SX-3.3 is widely used in applications requiring efficient and reliable voltage regulation. Its typical applications include:
- Industrial Automation: Powering sensors, controllers, and communication modules in industrial environments.
- Automotive Electronics: Providing stable power for infotainment systems, navigation, and onboard diagnostics.
- Consumer Electronics: Used in portable devices, smart home appliances, and battery-powered equipment.
- Telecommunications: Supporting power supply designs for networking and communication devices.
Q & A
1. What is the output voltage of the LM2587SX-3.3?
The output voltage is fixed at 3.3V.
2. What is the input voltage range?
The input voltage range is 4V to 40V.
3. What is the maximum output current?
The maximum output current is 5A.
4. What is the typical efficiency of this regulator?
The typical efficiency is 90%.
5. What protection features are included?
It includes overcurrent and overtemperature protection.
6. What package does the LM2587SX-3.3 come in?
It is available in a TO-263 surface mount package.
7. What is the operating temperature range?
The operating temperature range is -40°C to +125°C.
8. Can this regulator be used in automotive applications?
Yes, it is suitable for automotive electronics.
9. Is the output voltage adjustable?
No, the output voltage is fixed at 3.3V.
10. What is the switching frequency?
The switching frequency is typically 100kHz.
