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. These ICs also use tiny external components; their high switching frequency (up to 300kHz) allows for less than 5mm diameter surface-mount magnetics. The MAX774/MAX775/MAX776 accept input voltages from 3V to 16.5V, and have preset output voltages of -5V, -12V, and -15V, respectively. Or, the output voltage can be user-adjusted with two resistors. Maximum VIN - VOUT differential voltage is limited only by the break-down voltage of the chosen external switch transistor. These inverters use external P-channel MOSFET switches, allowing them to power loads up to 5W. If less power is required, use the MAX764/MAX765/MAX766 inverting switching regulators with on-board MOSFETs. Applications * Battery-Powered Applications * Data Communications * High-Efficiency DC-DC Converters * LCD Bias Generators * 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 https://elecena.pl/product/22337771/5v-12v-15v-or-adjustable-high-efficiency-low-i-inverting-dc-to-dc-controllers 2022-12-29 https://elecena.pl/product/22337771/5v-12v-15v-or-adjustable-high-efficiency-low-i-inverting-dc-to-dc-controllers 2024-11-04 https://elecena.pl/product/22337771/5v-12v-15v-or-adjustable-high-efficiency-low-i-inverting-dc-to-dc-controllers 2024-11-09 https://elecena.pl/product/22337771/5v-12v-15v-or-adjustable-high-efficiency-low-i-inverting-dc-to-dc-controllers 2025-01-19