Microchip | MCP1651R-E/MS

MCP1650 series of 750 kHz gated oscillator boost controller packaged in an 8 or 10-pin MSOP package. Developed for high-power, portable applica-tions, the gated oscillator controller can deliver 5 watts of power to the load while consuming only 120 µA of quiescent current at no load.

MCP1650/51/52/53 can operate over a wide input voltage range (2.0 V to 5.5 V) to accommodate multiple primary-cell and single-cell Li-Ion battery-powered applications, in addition to 2.8 V, 3.3 V and 5.0 V regulated input voltages. Additional features integrated on the MCP1650/51/52/ 53 family include peak input current limit, adjustable output voltage/current, low battery detection and power-good indication.

Features:

• Output Power Capability Over 5 Watts
• 560/440 Output Current (mA)
• Output Voltage Capability From 3.3 V to Over 100 V
• 750 kHz Gated Oscillator Switching Frequency
• Adaptable Duty Cycle for Battery or Wide-Input, Voltage-Range Applications
• Input Voltage Range: 2.0 V to 5.5 V
• 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:
• 2.0 V or 2.55 V
• Operating Temperature Range: -40°C to +125°C

Applications:

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