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UC3842an Electronic Components IC Chips Integrated Circuits IC UC3842an. Low Start-Up Current: Optimized for efficiency with low start-up current under 0.5mA. Pulse-by-Pulse Current Limiting: Features built-in pulse-by-pulse current limiting for protection. Automatic Compensation: Includes automatic feed forward compensation for stability. Trimmed Oscillator: Trimmed oscillator discharge current for precise performance. Versatile Topology Support: Supports Boost, Buck, Flyback, and Forward topologies. Wide Supply Voltage Range: Operates with a supply voltage range of 10V to 30V. High Duty Cycle: Capable of achieving a maximum duty cycle of 96%. Multiple Package Options: Available in SOP-8 and DIP-8 package styles.