UC3843AN Current Mode PWM Controller IC – SMPS Control | Texas Instruments

MPN:UC3843AN

The UC3843AN is a high-performance current-mode PWM controller IC from Texas Instruments, widely used in switch-mode power supplies (SMPS). It offers precise duty-cycle control, fast transient response, and excellent line/load regulation, making it ideal for offline and DC-DC converter designs.

With features like under-voltage lockout (UVLO), low start-up current, and cycle-by-cycle current limiting, the UC3843AN ensures safe, stable, and efficient power conversion.