SG3525AN

The SG3525AN is a versatile and reliable pulse width modulation (PWM) controller IC designed for use in switching power supplies. It operates with a maximum switching frequency of 400 kHz and features a precision oscillator that can be adjusted to generate a stable clock signal. The IC includes a PWM comparator that compares the error signal from the feedback loop with a sawtooth waveform generated by the oscillator to produce the control pulses for the switching elements.

The SG3525AN also incorporates dual source/sink output drivers capable of sourcing or sinking in excess of 200 mA, making it suitable for driving a variety of loads. Additionally, it includes protection features such as undervoltage lockout (UVLO) to prevent operation if the supply voltage drops below a safe level, and soft-start circuitry to limit the inrush current during startup.

The SG3525AN is packaged in a robust DIP-16 package and offers a wide operating temperature range, making it suitable for use in a variety of environments. Its versatile functionality and robust design make it an ideal choice for designers and engineers working on switching power supply projects that require high efficiency, low external parts count, and reliable operation.

Overall, the SG3525AN is a high-performance PWM controller IC that offers a combination of precision, flexibility, and reliability, making it an excellent choice for a wide range of power supply applications.