Description
The MCP1650/51/52/53 is a 750 kHz gated oscillator boost controller packaged in an 8 or 10-pin MSOP package. Developed for high-power, portable applications, the gated oscillator controller can deliver 5 watts of power to the load while consuming only 120 µA of quiescent current at no load. The MCP1650/51/52/53 can operate over a wide input voltage range (2.0V to 5.5V) to accommodate multiple primary-cell and singlecell Li-Ion battery-powered applications, in addition to 2.8V, 3.3V and 5.0V regulated input voltages.

Features
• Output Power Capability Over 5 Watts
• Output Voltage Capability From 3.3V to Over 100V
• 750 kHz Gated Oscillator Switching Frequency
• Adaptable Duty Cycle for Battery or Wide-Input, Voltage-Range Applications
• Input Voltage Range: 2.0V to 5.5V
• Capable of SEPIC and Flyback Topologies
• Shutdown Control with IQ < 0.1 µA (Typical)
• Low Operating Quiescent Current: IQ = 120 µA
• Voltage Feedback Tolerance (0.6%, Typical)
• Popular MSOP-8 Package
• Peak Current Limit Feature
• Two Undervoltage Lockout (UVLO) Options:
   - 2.0V or 2.55V
• Operating Temperature Range: -40°C to +125°C

Applications
• High-Power Boost Applications
• High-Voltage Bias Supplies
• White LED Drivers and Flashlights
• Local 3.3V to 5.0V Supplies
• Local 3.3V to 12V Supplies
• Local 5.0V to 12V Supplies
• LCD Bias Supply