MAX775 Datasheet (Maxim) - -5V/-12V/-15V or Adjustable / High-Efficiency / Low IQ Inverting DC-DC Controllers

MAX775, -5V/-12V/-15V or Adjustable / High-Efficiency / Low IQ Inverting DC-DC Controllers

The MAX774/MAX775/MAX776 inverting switching regulators deliver high efficiency over three decades of load current.

A unique current-limited, pulsefrequency modulated (PFM) control scheme provides the benefits of pulse-width modulation (high efficiency with heavy loads), while using less than 100µA

MAX775 Features

* o 85% Efficiency for 5mA to 1A Load Currents o Up to 5W Output Power o 100µA (max) Supply Current o 5µA (max) Shutdown Current o 3V to 16.5V Input Range o -5V (MAX774), -12V (MAX775), -15V (MAX776), or Adjustable Output Voltage o Current-Limited PFM Control Scheme o 300kHz Switching Frequency Order