The FR8205S6CTR is a synchronous rectified step-down converter with a wide input voltage range, designed to deliver high efficiency and excellent transient response in a compact package. It integrates high-side and low-side MOSFETs to minimize conduction losses and maximize efficiency, making it ideal for battery-powered applications and point-of-load regulators.

Applications

• Portable power devices
• Power banks
• Battery chargers
• Point-of-load (POL) converters
• Distributed power systems

Features

• Wide input voltage range: 4.5V to 18V
• Adjustable output voltage
• High efficiency: Up to 95%
• Integrated high-side and low-side MOSFETs
• Fixed switching frequency
• Current-mode control with fast transient response
• Short-circuit protection (SCP)
• Over-temperature protection (OTP)
• Under-voltage lockout (UVLO)

Benefits

• High efficiency minimizes power losses and extends battery life in portable applications.
• Wide input voltage range provides flexibility to support various power sources.
• Integrated MOSFETs reduce component count and simplify PCB layout.
• Fast transient response ensures stable output voltage under dynamic load conditions.
• Robust protection features enhance system reliability and prevent damage during fault conditions.

Additional Details

The FR8205S6CTR employs a current-mode control architecture for stable operation and excellent line and load regulation. The integrated MOSFETs are optimized for low on-resistance, minimizing conduction losses and maximizing efficiency. The device also features short-circuit protection, over-temperature protection, and under-voltage lockout to protect the converter and the load. The switching frequency is fixed to simplify design and reduce EMI. The device is available in a small, thermally enhanced package. The precise value of the switching frequency and the specific on-resistance of the MOSFETs can be found in the datasheet.