ON Semiconductor MC33025DWR2G High-Speed PWM Controller

The ON Semiconductor MC33025DWR2G is a high-performance, dual-output, pulse width modulator (PWM) controller designed for precision DC to DC converters. This versatile component is engineered to deliver exceptional performance in a wide range of applications, including switch-mode power supplies, motor control, and various power conversion systems.

The MC33025DWR2G operates at a high frequency, which allows for smaller external components, resulting in a compact and efficient power supply design. With its fast response times and high accuracy, this PWM controller ensures stable and reliable operation even under variable load conditions.

Key features of the MC33025DWR2G include an undervoltage lockout for both Vcc and Vc, a maximum duty cycle of 50% for each output, and a double-pulse suppression mechanism that helps to prevent erroneous inputs during power-up and other transient conditions. Additionally, the device offers an independently programmable soft start function which limits inrush current during startup, enhancing system reliability.

The MC33025DWR2G is also equipped with a current sense comparator that has a common mode range of -0.3 V to +3.5 V. This feature allows for current mode control, providing inherent pulse-by-pulse current limiting and protection for the power supply and the load. Furthermore, the error amplifier has a wide bandwidth for excellent loop stability and fast transient response.

This PWM controller is housed in a 16-pin SOIC wide-body package, which is not only space-efficient but also allows for optimal thermal performance. The MC33025DWR2G is designed with built-in thermal shutdown protection, which ensures that the device operates within safe temperature ranges, further safeguarding your power management system from potential thermal damage.

Whether you are designing a new power system or upgrading an existing one, the ON Semiconductor MC33025DWR2G offers a high-quality, reliable solution for your PWM control needs, ensuring efficient and stable operation across a multitude of applications.