Overview
The LM2587T-ADJ is a versatile DC/DC switching regulator produced by Texas Instruments, designed for applications such as boost, flyback, and forward converter topologies. This monolithic integrated circuit is part of the SIMPLE SWITCHER® series, offering a cost-effective and easy-to-use solution for power management. It supports a wide input voltage range from 4V to 40V and provides an adjustable output voltage from 1.23V to 60V, making it suitable for various industrial and consumer electronics applications. With its internal 100kHz oscillator, current-mode control, and built-in protection features, the LM2587T-ADJ ensures reliable and efficient power conversion.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4 - 40 | V | |
| Output Voltage Range | 1.23 - 60 | V | Adjustable |
| Output Current | 5 | A | Switch current |
| Switching Frequency | 100 | kHz | |
| Operating Temperature | -40 to 125 | °C | |
| Topology | Boost, Flyback, Forward | ||
| Package | TO-220-5 | Formed leads | |
| Protection Features | Current Limit, UVLO, Thermal Shutdown |
Key Features
- Wide input voltage range (4V to 40V) for versatile applications.
- Adjustable output voltage (1.23V to 60V) for flexible design.
- Integrated 100kHz oscillator for compact magnetic components.
- Current-mode control for improved transient response and line regulation.
- Built-in soft-start function to reduce inrush current during startup.
- Comprehensive protection features including current limit, UVLO, and thermal shutdown.
Applications
The LM2587T-ADJ is widely used in power management applications across various industries. It is ideal for industrial automation, consumer electronics, and automotive systems. Specific applications include power supplies for LED lighting, battery chargers, and DC/DC converters. Its ability to handle a wide input voltage range and provide stable output makes it suitable for systems requiring efficient and reliable power conversion.
Q & A
1. What is the input voltage range of the LM2587T-ADJ?
The input voltage range is 4V to 40V.
2. Can the output voltage be adjusted?
Yes, the output voltage is adjustable from 1.23V to 60V.
3. What is the maximum output current?
The maximum output current is 5A (switch current).
4. What is the switching frequency of the LM2587T-ADJ?
The switching frequency is 100kHz.
5. What protection features are included?
It includes current limit, undervoltage lockout (UVLO), and thermal shutdown.
6. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
7. What package does the LM2587T-ADJ use?
It uses a TO-220-5 package with formed leads.
8. Is the LM2587T-ADJ suitable for automotive applications?
Yes, its wide input range and robust design make it suitable for automotive systems.
9. Does it support soft-start functionality?
Yes, it includes a built-in soft-start function to reduce inrush current.
10. What topologies does the LM2587T-ADJ support?
It supports boost, flyback, and forward converter topologies.
