Lingto Electronic Limited PMIC - Voltage Regulators - DC DC Switching Controllers UC2823AN

The UC2823AN is a high-speed PWM controller designed for DC-DC switching applications. It operates with a maximum switching frequency of 1 MHz and features a 50-ns propagation delay to output. The device supports both voltage-mode and current-mode control methods, making it versatile for various applications. It includes high-current dual totem pole outputs capable of delivering 2-A peak currents, which is beneficial for driving external components. The UC2823AN has a low startup current of 100 OºA, making it suitable for off-line applications. It incorporates a pulse-by-pulse current limiting comparator and a latched overcurrent comparator with full cycle restart capability, enhancing its reliability in fault conditions. The error amplifier has a gain bandwidth product of 12 MHz and an input offset voltage of 2 mV, ensuring precise control. Additionally, the oscillator discharge current is specified at 10 mA for accurate dead time control, and frequency accuracy is improved to 6%. This controller is available in a 16-pin PDIP package, making it easy to integrate into existing designs. Overall, the UC2823AN is a robust choice for engineers looking for a reliable PWM controller for their DC-DC conversion needs.