XC9145B55CMR-G

XC9145B55CMR-G is a XC9145 series PWM/PFM step-up DC/DC converter with a 200mohm N-channel driver FET and a 270mohm synchronous Pchannel switching FET built-in. The ultra-low current consumption of 400nA and PWM/PFM auto-switching control have dramatically improved the efficiency of the output current of 10μA or less, which was difficult to achieve in the past. (89.9%@VIN=2.4V, VOUT=3.3V, IOUT=10μA). It can significantly reduce the power consumption of battery-powered devices which consume a large percentage of power when the system is in standby mode. It contributes to keeping battery life longer and reducing battery size smaller. Application includes low power wireless communication products, low power IoT module, battery-powered medical devices / wearable devices (health monitoring, Fitness devices), remote controls, primary battery portable systems, metering devices / smart meter (gas / water / temperature), home security / home automation, energy harvest.

• 0.65V to 5.5V input voltage range, 5.5V output voltage
• 1.2MHz oscillation frequency, 400nA quiescent current
• Auto PWM/PFM control mode, 300mV at VOUT=3.3V, VBAT=1.8V, IOUT=1mA→200mA load transient response
• Current limit protection function, soft start, load disconnection functions
• SOT-25 package, operating ambient temperature range from -40 to 105°C