Based on this product's specifications, here are some alternatives and similar models
AC Adapter Dell U680F 90W 19.5V for Dell laptops — replacement power supply
Summary description:
AC adapter compatible with Dell laptops, model U680F. Output 90W at 19.5V, designed as a replacement power supply for charging and powering compatible portable Dell devices. Provides regulated power for everyday use, travel, and office work. Includes connector and cable suited for models accepting this specification; reduces downtime with reliable charging performance.