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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