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MCP1601 - 500mA Synchronous BUCK Regulator

General Description

The MCP1601 is a fully integrated synchronous BUCK (step down) DC/DC converter for battery powered systems.

With an input operating range of 2.7V to 5.5V, the MCP1601 is ideal for applications being powered by one single cell Li-Ion, 2 to 3 cell NiMH, NiCd or alkaline sources.

Key Features

  • Input Range of 2.7V to 5.5V.
  • 3 Operating Modes: PWM, PFM and LDO.
  • Integrated BUCK and Synchronous Switches.
  • Ceramic or Electrolytic Input/Output Filtering Capacitors.
  • 750 kHz Fixed Switching Frequency.
  • Oscillator Synchronization to 1 MHz PWM Mode.
  • Auto-Switching from PWM/PFM Operation.
  • 100% Duty Cycle Capable for Low Input Voltage.
  • 500 mA Continuous Output Current Capability.
  • Integrated Under-Voltage Lock-.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MCP1601 500 mA Synchronous BUCK Regulator Features • Input Range of 2.7V to 5.5V • 3 Operating Modes: PWM, PFM and LDO • Integrated BUCK and Synchronous Switches • Ceramic or Electrolytic Input/Output Filtering Capacitors • 750 kHz Fixed Switching Frequency • Oscillator Synchronization to 1 MHz PWM Mode • Auto-Switching from PWM/PFM Operation • 100% Duty Cycle Capable for Low Input Voltage • 500 mA Continuous Output Current Capability • Integrated Under-Voltage Lock-Out Protection • Integrated Over-Temperature Protection • Integrated Soft Start Circuitry • Low Output Voltage Capability to 0.9V • Temperature Range: -40°C to +85ºC • Small 8-Pin MSOP Package Applications • Low Power Handheld CPUs and DSPs • Cellular Phones • Organizers and PDAs • Digital Cameras • +5V or +3.