STMicroelectronics SG2524P - Regulating Pulse Width Modulator

Introducing the SG2524P from STMicroelectronics, a versatile and highly integrated Regulating Pulse Width Modulator (PWM) designed for a wide array of power supply applications. This innovative device combines all the required functions for a switching power supply into a single package, making it an ideal solution for designers looking to enhance efficiency and reliability in their power management systems.

The SG2524P is a fixed-frequency PWM controller with a voltage mode control architecture. It offers a broad operating frequency range that can be adjusted from 100 Hz to 400 kHz, providing the flexibility needed to tailor the device to specific application requirements. This feature allows for optimization of the power supply design, balancing the trade-offs between efficiency, component size, and cost.

The device is equipped with dual alternating outputs that facilitate the implementation of either single-ended or push-pull topologies. This versatility makes the SG2524P suitable for a variety of applications, including DC-DC converters, AC-DC power supplies, battery chargers, and more. The outputs are capable of directly driving power MOSFETs or bipolar transistors, streamlining the design process and reducing external component count.

With built-in features such as under-voltage lockout (UVLO), soft-start capability, and over-current protection, the SG2524P ensures safe and reliable operation under various conditions. The UVLO ensures that the PWM controller is only operational when the supply voltage is within an acceptable range, preventing malfunction due to low voltage. The soft-start function gradually increases the duty cycle from zero to the desired level at startup, minimizing inrush current and stress on the power supply components. Over-current protection is achieved through current sensing and limiting, safeguarding the device and the power supply from potential damage due to excessive loads.

The SG2524P is available in a 16-pin plastic DIP package, making it easy to integrate into a wide range of PCB layouts. Its robust design and comprehensive feature set make the SG2524P a reliable and cost-effective choice for developing efficient and durable power supplies.

For detailed technical specifications, application notes, and support resources, visit the STMicroelectronics website or contact their support team for further assistance.