UC3825AQ [Unitrode]

The UC3823A/B and UC3825A/B families are enhanced PWM controllers with improved performance, including a 12 MHz error amplifier gain bandwidth, 2 mV input offset voltage, 5% current limit tolerance, 10 mA oscillator discharge current, 6% frequency accuracy, and 100 μA startup current. They feature high-current dual totem pole outputs (2-A peak), pulse-by-pulse current limiting, latched overcurrent comparator with full cycle restart, and are compatible with voltage-mode or current-mode control methods. The devices operate at switching frequencies up to 1 MHz with 50-ns propagation delay to output.