MAX1771CSA
数据手册.pdf12V或可调，高效率，低IQ ，升压型DC- DC控制器 12V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controller
General Description
The MAX1771 step-up switching controller provides 90% efficiency over a 30mA to 2A load. A unique cur rent-limited pulse-frequency-modulation PFM control scheme gives this device the benefits of pulse-width modulation PWM converters high efficiency at heavy loads, while using less than 110µA of supply current vs. 2mA to 10mA for PWM converters.
Features
♦ 90% Efficiency for 30mA to 2A Load Currents
♦ Up to 24W Output Power
♦ 110µA Max Supply Current
♦ 5µA Max Shutdown Current
♦ 2V to 16.5V Input Range
♦ Preset 12V or Adjustable Output Voltage
♦ Current-Limited PFM Control Scheme
♦ Up to 300kHz Switching Frequency
♦ Evaluation Kit Available
