The MAX774/MAX775/MAX776 inverting switching regulators deliver high efficiency over three decades of load current.
A unique current-limited, pulse frequency modulated (PFM) control scheme provides the benefits of pulse-width modulation (high efficiency with heavy loads), while using less than 100µA of supply current (vs. 2mA to 10mA for PWM converters).
The result is high efficiency over a wide range of loads.
Feature
- 85% Efficiency for 5mA to 1A Load Currents
- Up to 5W Output Power
- 100μA (max) Supply Current
- 5μA (max) Shutdown Current
- 3V to 16.5V Input Range
- -5V (MAX774), -12V (MAX775), -15V (MAX776), or Adjustable Output Voltage
- Current-Limited PFM Control Scheme
- 300kHz Switching Frequency
Applications
- Battery-Powered Applications
- Data Communications
- High-Efficiency DC-DC Converters
- LCD Bias Generators
