Overview
The LM2588SX-ADJ/NOPB is a monolithic integrated circuit designed by Texas Instruments for use in flyback, step-up (boost), and forward converter applications. This regulator is part of the LM2588 series and is known for its simplicity and cost-effectiveness, requiring a minimum number of external components. It is available in various output voltage versions, including 3.3 V, 5 V, 12 V, and adjustable. The device features a wide input voltage range and advanced protection mechanisms, making it versatile for various power supply needs.
Key Specifications
| Parameter | Value |
|---|---|
| Package | TO-263 (KTW) with 7 pins |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range | 4 V to 40 V |
| Output Switch Current | 5 A NPN, can stand off 65 V |
| Switching Frequency | Adjustable: 100 kHz to 200 kHz |
| Shutdown Current | Less than 60 µA |
| Output Voltage Tolerance | ±4% Max over line and load conditions |
Key Features
- Requires few external components
- Family of standard inductors and transformers
- Wide input voltage range: 4 V to 40 V
- Adjustable switching frequency: 100 kHz to 200 kHz
- External shutdown capability
- Frequency synchronization
- Current-mode operation for improved transient response, line regulation, and current limit
- Internal soft-start function reduces in-rush current during start-up
- Output transistor protected by current limit, undervoltage lockout, and thermal shutdown
Applications
The LM2588SX-ADJ/NOPB is suitable for a variety of power supply applications, including flyback, step-up (boost), and forward converters. It is particularly useful in systems that require a wide input voltage range and adjustable output voltage. Common applications include industrial power supplies, automotive systems, and other electronic devices that need reliable and efficient power conversion.
Q & A
- What is the input voltage range of the LM2588SX-ADJ/NOPB?
The input voltage range is 4 V to 40 V. - What is the maximum output switch current of the LM2588SX-ADJ/NOPB?
The maximum output switch current is 5 A. - Can the switching frequency of the LM2588SX-ADJ/NOPB be adjusted?
Yes, the switching frequency can be adjusted from 100 kHz to 200 kHz. - Does the LM2588SX-ADJ/NOPB have external shutdown capability?
Yes, it has an external shutdown capability. - What is the output voltage tolerance of the LM2588SX-ADJ/NOPB?
The output voltage tolerance is ±4% Max over line and load conditions. - What type of package does the LM2588SX-ADJ/NOPB come in?
The LM2588SX-ADJ/NOPB comes in a TO-263 (KTW) package with 7 pins. - What is the operating temperature range of the LM2588SX-ADJ/NOPB?
The operating temperature range is -40°C to 125°C. - Does the LM2588SX-ADJ/NOPB have frequency synchronization capability?
Yes, it has frequency synchronization capability. - What protection mechanisms are included in the LM2588SX-ADJ/NOPB?
The device includes current limit, undervoltage lockout, and thermal shutdown protection mechanisms. - How much current does the LM2588SX-ADJ/NOPB draw when shut down?
The device draws less than 60 µA when shut down.
