Texas Instruments UCC28083 Current Mode Push-Pull PWM With Programmable Slope Compensation UCC28083DG4

The UCC28083DG4 is a BiCMOS pulse width modulation (PWM) controller designed for high-efficiency switch-mode power supplies and telecom dc-to-dc converters. It features programmable slope compensation, internal soft-start, and cycle-by-cycle current limiting, making it suitable for various applications including point-of-load power modules and low-cost push-pull configurations. This device operates with a low start-up current of 120 ¬µA and a typical run current of 1.5 mA. The oscillator frequency can be programmed from 50 kHz to 1 MHz using a single external component. The controller includes a high-current totem-pole dual output stage capable of driving a push-pull configuration with a 1-A sink and 0.5-A source capability. The UCC28083DG4 has undervoltage lockout with hysteresis and an internally trimmed bandgap reference, ensuring stable operation. It is available in multiple package options including 8-pin TSSOP, SOIC, and PDIP, with a temperature range of -40¬8C to 85¬8C. This product is suitable for engineers looking for a reliable and efficient solution for their power supply designs.