U3506C

U3506C is a high-voltage step-down switching regulator with an integrated MOSFET. It incorporates a high-side high-voltage power MOSFET with a typical current limit of 5A. Its wide input voltage range suits a variety of step-down applications, making it an ideal choice for automotive, industrial, and lighting applications. The device employs hysteretic voltage mode control for extremely fast transient response. A proprietary feedback control scheme minimizes the number of required external components. The 150KHz switching frequency helps achieve compact component sizing. Thermal shutdown and short-circuit protection ensure reliable, fault-tolerant operation. Low quiescent current makes it suitable for battery-powered applications. The U3506C is available in an ESOP-8 package with an exposed pad.

Applications

• Scooter and e-bike control power supply
• Solar energy systems
• Automotive power systems
• Industrial power supplies
• High-power LED drivers
• USB

Key features

• Integrated 200V high-voltage startup circuit
• Integrated 5V reference voltage
• Built-in 200V/58 mΩ MOSFET
• Built-in bootstrap diode
• Hysteretic control: no compensation required
• 150 KHz switching frequency
• PWM dimming control input for buck applications
• Short-circuit protection for integrated high-side MOSFET
• Low quiescent current
• Thermal shutdown
• ESOP-8 package with exposed pad