MAX766CSA Datasheet

PMIC - Voltage Regulators - DC DC Switching Regulators


The MAX764/MAX765/ MAX766CSA inverting switching regulators are highly efficient over a wide range of load currents,delivering up to 1.5W. A unique, current-limited, pulse-frequency-modulated (PFM) control scheme combines the benefits of traditional PFM converters with the benefits of pulse-width-modulated (PWM) converters. Like PWM converters, the MAX764/MAX765/MAX766CSA are highly efficient at heavy loads. Yet because they are PFM devices, they use less than 120μA of supply current (vs. 2mA to 10mA for a PWM device).The input voltage range is 3V to 16V. The output voltage is preset at -5V (MAX764), -12V (MAX765), or -15V (MAX766CSA); it can also be adjusted from -1V to -16V using two external resistors (Dual ModeTM). The maximum operating VIN - VOUT differential is 20V.These devices use miniature external components; their high switching frequencies (up to 300kHz) allow for less than 5mm diameter surface-mount magnetics. A standard 47μH inductor is ideal for most applications, so no magnetics design is necessary.An internal power MOSFET makes the MAX764/MAX765/MAX766CSA ideal for minimum component count, low- and medium-power applications. For increased output drive capability or higher output voltages, use the MAX774/MAX775/MAX776 or MAX1774, which drive an external power P-channel MOSFET for loads up to 5W. MAX766CSA Features • High Efficiency for a Wide Range of Load Currents• 250mA Output Current• 120μA Max Supply Current• 5μA Max Shutdown Current• 3V to 16V Input Voltage Range• -5V (MAX764), -12V (MAX765), -15V (MAX766),or Adjustable Output from -1V to -16V• Current-Limited PFM Control Scheme• 300kHz Switching Frequency• Internal, P-Channel Power MOSFET MAX766CSA Applications • LCD-Bias Generators• Portable Instruments• LAN Adapters• Remote Data-Acquisition Systems• Battery-Powered Applications


[{"Name":"Number of Outputs","Value":"1"},{"Name":"Voltage - Output","Value":"-15V, -1 V ~ -16 V"},{"Name":"Voltage - Input","Value":"3 V ~ 16 V"},{"Name":"Frequency - Switching","Value":"300kHz"},{"Name":"Current - Output","Value":"105mA"},{"Name":"Operating Temperature","Value":"0°C ~ 70°C"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

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