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MAX1947 - Low Input/Output Voltage Step-Up DC-DC Converter

Key Features

  • Low Input (0.7V) and Output (1.8V) Voltage Capability.
  • Internal Synchronous Rectifier.
  • High 94% Efficiency.
  • Fixed Output Voltages: 1.8V, 2.5V, 3V, and 3.3V.
  • Up to 2MHz Switching Allows Small External Components and Low Output Ripple.
  • Automatic Pulse Skipping at Light Loads for Extended Battery Life.
  • Low 70µA (typ) Operating Supply Current (Measured at OUT).
  • Low 2µA Logic-Controlled Shutdown.
  • True Shutdown Fully Dis.

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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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19-3086; Rev 0; 5/04 KIT ATION EVALU E L B A AVAIL www.DataSheet4U.com Low Input/Output Voltage Step-Up DC-DC Converter with RESET General Description Features ♦ Low Input (0.7V) and Output (1.8V) Voltage Capability ♦ Internal Synchronous Rectifier ♦ High 94% Efficiency ♦ Fixed Output Voltages: 1.8V, 2.5V, 3V, and 3.3V ♦ Up to 2MHz Switching Allows Small External Components and Low Output Ripple ♦ Automatic Pulse Skipping at Light Loads for Extended Battery Life ♦ Low 70µA (typ) Operating Supply Current (Measured at OUT) ♦ Low 2µA Logic-Controlled Shutdown ♦ True Shutdown Fully Discharges Output to Ground ♦ Uses Only Small Ceramic Capacitors ♦ 75ms RESET Output Flag MAX1947 The MAX1947 is a compact, high-efficiency, step-up DCDC converter that regulates output voltages from 1.8V to 3.