MCP1665T-E/MRA

The MCP1665 is an expansion of high-voltage non-synchronous MCP166x boost regulator family providing efficient boost power conversion in low input voltage applications. It features the highest power density in the MCP166x family, integrating an NMOS switch with a 3.6A peak input current limit in a space-saving 2mm x 2mm VQFN package. Key features include a MODE pin to prioritize battery life or noise performance in light load conditions. Can provide up to 32V output from batteries with the flexibility to support alternative topologies like SEPIC, Cuk and Flyback.

• 36V, 100 mΩ Integrated Switch
• Up to 92% Efficiency
• Higher Current Compared to the Previous MCP166x Switchers Family
• Output Voltage Range: Up to 32V
• 3.6A Typical Peak Input Current Limit
• Input Voltage Range: 2.9V to 5V
• Input Undervoltage Lockout (UVLO)
• No Load Input Current: 250 μA Typically for PFM, 500 μA Typically for PWM
• Shutdown Mode with 0.4 μA Typical Quiescent Current
• Automatically PFM/PWM or Selected by the MODE Pin, for High Efficiency
• 500 kHz PWM Operation with Skipping Mode Operation Selectable by Dedicated MODE Pin
• Feedback Voltage Reference: VFB = 1.2V
• Cycle-by-Cycle Current Limiting
• Internal Compensation
• Inrush Current Limiting and Internal Soft Start
• Output Overvoltage Protection (OVP) and Open-Load Protection (OLP) for Constant Current Configuration
• Thermal Shutdown
• Easily Configurable for SEPIC, Cuk or Flyback Topologies