Award-winning SIMPLE SWITCHER DC/DC converters deliver robust power supplies with the minimum set of external components. All SIMPLE SWITCHER products work with the enhanced WEBENCH Power Designer end-to-end design and prototyping tools.

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.

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