The OB2223CPA is a switching controller made by On-Bright. It is a Surface-Mounted Plastic (SOP) device with a 8-pin dual-in-line package, and a 150-mil pin spacing. It is designed for use in applications such as digital power supply and power management. The RoHS-compliant device enables pulse-width modulation (PWM) control without the need for an external transistor or opto-isolator. It also features improved efficiency thanks to its soft start and cycle-by-cycle current limiting, as well as its output voltage accuracy. Furthermore, the OB2223CPA has built-in temperature protection, allowing it to safely operate in high-temperature environments.