BUY UC2842BN https://www.utsource.net/itm/p/11246421.html
Description: High Performance Current Mode PWM Controller
Features:
Internal Slope Compensation
Internal Soft Start
Pulse-by-Pulse Current Limiting
Low Start-up and Operating Current
Low Power Loss
Under Voltage Lockout
Thermal Shutdown
Output Clamp for Inductive Transient Suppression
Output for Driving an External N-Channel MOSFET
Available in 8-Pin DIP and SOIC Packages
Application:
Switching Power Supplies
Motor Controls
Battery Chargers
SMPS and DC-DC Converters
(For reference only)