XC9110 - Torex Semiconductor

XC9110 PFM Controlled Step-Up DC/DC Converter/Controller

The XC9110/9111 series is a group of PFM controlled step-up DC/DC converter/controller ICs designed to generate low supply voltage by the combination of PFM control and CMOS structure. The series is ideal for applications where a longer battery life is needed such as in portable communication equipment. With a built-in 2.5Ω N-channel driver transistor, the X.

Features

Input Voltage Range : operating hold voltage 0.7V~10.0V Start-up voltage 0.9V~10.0V Output Voltage Range : 1.5V ~ 7.0V in 0.1V increments Output Accuracy : ±2.5% Max Oscillation Frequency : 100 kHz ±15% 180 kHz (at 56% duty of XC9111) Built-in Switch Types : A/C/E type N-ch FET On-Resistance : 2.5Ω@ VDD=3.0V External Transistor Types : B/D/F type Lx Limit Voltage Max Duty Cycles : E type: more than VDD=2.0V : A/C type: more than VOUT=2.0V : 75% (for XC9110) : 56%/75% two steps (for XC9111) Low Supply Current : 2.0μA @ VOUT=3V Operating Ambient Temperature: -40℃ ~ 85℃ Packag.