Overview
The LM2587S-12 is a switching regulator IC manufactured by Texas Instruments, designed for use in DC-DC converter applications. Part of the SIMPLE SWITCHER® series, this component is optimized for boost, flyback, and forward converter topologies. It provides a fixed 12V output voltage and supports a wide input voltage range from 4V to 40V, making it suitable for a variety of power supply designs. The LM2587S-12 is particularly valued for its high efficiency, compact design, and ease of use, targeting applications in industrial, automotive, and consumer electronics.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Series | SIMPLE SWITCHER® | - | - |
| Function | Boost, Buck-Boost | - | - |
| Output Configuration | Positive | - | - |
| Topology | Boost, Flyback, Forward Converter | - | - |
| Output Type | Fixed | - | - |
| Output Number | 1 | - | - |
| Input Voltage (Min) | 4 | V | - |
| Input Voltage (Max) | 40 | V | - |
| Output Voltage (Fixed) | 12 | V | - |
| Output Current | 5 | A (Switch) | - |
| Switching Frequency | 100 | kHz | - |
| Operating Temperature | -40 to 125 | °C | (TJ) |
| Mounting Type | Surface Mount | - | - |
| Package/Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | - | - |
Key Features
- Wide input voltage range (4V to 40V) for versatile applications.
- Fixed 12V output voltage with high efficiency.
- Supports boost, flyback, and forward converter topologies.
- Compact surface-mount package for space-constrained designs.
- Integrated protection features including thermal shutdown and current limiting.
Applications
The LM2587S-12 is widely used in various power supply applications, including industrial automation, automotive electronics, and consumer electronics. Its ability to handle a broad input voltage range and deliver a stable 12V output makes it ideal for systems requiring reliable and efficient power conversion. Common applications include battery chargers, LED drivers, and power supplies for embedded systems.
Q & A
What is the input voltage range of the LM2587S-12?
The input voltage range is 4V to 40V.
What is the output voltage of the LM2587S-12?
The output voltage is fixed at 12V.
What topologies does the LM2587S-12 support?
It supports boost, flyback, and forward converter topologies.
What is the maximum output current of the LM2587S-12?
The maximum output current is 5A (switch).
What is the switching frequency of the LM2587S-12?
The switching frequency is 100kHz.
What is the operating temperature range of the LM2587S-12?
The operating temperature range is -40°C to 125°C.
What package does the LM2587S-12 come in?
It comes in a TO-263-6, D²Pak (5 Leads + Tab), TO-263BA package.
Is the LM2587S-12 suitable for automotive applications?
Yes, its wide input voltage range and robust design make it suitable for automotive electronics.
Does the LM2587S-12 include protection features?
Yes, it includes thermal shutdown and current limiting for protection.
What is the primary advantage of the LM2587S-12?
Its primary advantage is its high efficiency and ease of use in various power supply designs.
