Cart LM258x Boost/Flyback/Sepic SIMPLE SWITCHER® Regulators
The LM258x series of regulators are monolithic integrated circuits specifically designed for flyback, step-up (boost), SEPIC, and forward converter applications. The device is available in 4 different output voltage versions: 3.3V, 5.0V, 12V, and adjustable. Requiring a minimum number of external components, these regulators are simple to use. Included in the datasheet are typical circuits of boost and flyback regulators.
Product Information
| Product ID | VIn (V) | Switch Rating (V) | IOut (A) | Sync | Frequency |
| LM2585 | 4 - 40 | 60V | 3 | 100kHz | |
| LM2586 | 4 - 40 | 60V | 3 |  |
100kHz - 200kHz |
| LM2587 | 4 - 40 | 60V | 5 | 100kHz | |
| LM2588 | 4 - 40 | 60V | 5 | |
100kHz - 200kHz |
Features
- NPN output switches support up to 5.0A and can stand off 65V
- Wide input voltage range: 4V to 40V
- Current-mode operation for improved transient response, line regulation, and current limit
- 100 - 200 kHz switching frequencies supported
- Internal soft-start function reduces in-rush current during start-up
- Output transistor protected by current limit, under voltage lockout, and thermal shutdown
- System Output Voltage Tolerance of ±4% max over line and load conditions
- Available in both TO-220 and TO-263 packaging
