BUY TS34063 https://www.utsource.net/itm/p/5334951.html
Dc to Dc Converter Controller
Description: The TS34063 is a high-performance, low-cost, fixed-frequency, current-mode pulse-width-modulation (PWM) controller. Features: Operating Frequency up to 500kHz Internal Soft-Start Internal Over-Temperature Protection Internal Over-Voltage Protection Internal Under-Voltage Lockout Internal Over-Current Protection Internal Short-Circuit Protection Internal Frequency Compensation Internal Slope Compensation External Sync Function External Soft-Start External Over-Current Protection External Frequency Adjustment High Efficiency Low Cost Applications: The TS34063 is suitable for a wide range of applications, including: Switching Regulators DC/DC Converters Battery Chargers Off-Line Power Supplies Uninterruptible Power Supplies (UPS) Motor Speed Control Lighting Control (For reference only)