Products - Step-Up

Ultra-Low Power PWM/PFM Synchronous Step-Up DC/DC Converter

The XC9145 series is a synchronous step-up DC/DC converter with a 200mΩ N-channel driver FET and a 270mΩ synchronous P-channel switching FET built-in. 

The ultra-low current consumption of 400nA and PWM/PFM auto-switching control combine to dramatically improve efficiency at load current levels of 10µA or less (89.9%@V_IN=2.4V, V_OUT=3.3v, I_OUT=10µA).

Output voltage can be set from 3.0V ~ 5.5V (±2%) in 0.1V increments and the XC9145 can support up to 430mA I_OUT @ V_OUT=5.0V, V_BAT=3.3V. Start-up voltage is 1.6V but the XC9145 can then operate down as low as 0.65V in operation.

The XC9145 series can significantly reduce the power consumption of battery-powered devices which consume a large percentage of power when the system is in standby mode.

Features:

• Input Voltage: 0.65V ~ 5.5V
• Output Voltage: 3.0V ~ 5.5V
• Output Current: 430mA (V_OUT=5.0V, V_BAT=3.3V)
• Quiescent Current: 400nA 
• Switching Frequency: 1.2MHz
• Load Disconnect & Soft Start Function
• Packages : SOT-25, USP-6C, WLP-6-05