Overview
The LM2587SX-12 is a highly efficient, multi-configuration switching regulator IC produced by Texas Instruments. It belongs to the SIMPLE SWITCHER® family and is designed for applications requiring a fixed 12V output. This IC is particularly suited for power supply designs in industrial, automotive, and consumer electronics due to its wide input voltage range and robust performance. Its market positioning targets engineers and designers looking for a reliable and cost-effective solution for DC-DC conversion. The LM2587SX-12 stands out for its high current output, compact packaging, and ease of integration into various power systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 12 | V | Fixed |
| Input Voltage | 4 - 40 | V | |
| Output Current | 5 | A | Switch |
| Switching Frequency | 100 | kHz | |
| Operating Temperature | -40 - 125 | °C | |
| Package | TO-263-5 | DDPAK/TO-263-5 | |
| PWM Type | Current Mode | ||
| Output Type | Fixed | ||
| Output Configuration | Positive | ||
| Topology | Boost, Flyback, Forward Converter |
Key Features
- High efficiency with a wide input voltage range (4V to 40V).
- Fixed 12V output suitable for various applications.
- Current mode PWM control for improved transient response and line regulation.
- Compact TO-263-5 package for space-constrained designs.
- Internal soft-start function to reduce inrush current during startup.
Applications
The LM2587SX-12 is widely used in industrial automation, automotive electronics, and consumer electronics. It is ideal for powering devices such as sensors, actuators, and communication modules. Its robust design ensures reliable performance in harsh environments, making it suitable for automotive power systems and industrial control units. Additionally, its high current output and efficient design make it a preferred choice for battery-powered devices and portable electronics.
Q & A
1. What is the input voltage range of the LM2587SX-12?
The input voltage range is 4V to 40V.
2. What is the output voltage of the LM2587SX-12?
The output voltage is a fixed 12V.
3. What is the maximum output current of the LM2587SX-12?
The maximum output current is 5A.
4. What is the switching frequency of the LM2587SX-12?
The switching frequency is 100kHz.
5. What is the operating temperature range of the LM2587SX-12?
The operating temperature range is -40°C to 125°C.
6. What package does the LM2587SX-12 come in?
It comes in a TO-263-5 package (DDPAK/TO-263-5).
7. Is the LM2587SX-12 RoHS compliant?
No, it is not RoHS compliant.
8. What type of PWM control does the LM2587SX-12 use?
It uses current mode PWM control.
9. Can the LM2587SX-12 be used in automotive applications?
Yes, it is suitable for automotive applications due to its robust design and wide input voltage range.
10. Does the LM2587SX-12 have a soft-start function?
Yes, it includes an internal soft-start function to reduce inrush current during startup.
