| Description & Applications | 500mA Synchronous Step-Down DC / DC Converters •P-ch Driver Tr. Built-in :ON resistance 0.6Ω N-ch  •Synchronous Driver Tr. Built-in :ON resistance 0.7Ω •Input Voltage Range :2.0 ~ 6.0V  •Output Voltage Range :0.9V~4.0V (100mV increments) •High Efficiency :92% (TYP.)  (VIN=3.0V, VOUT=1.8V,   IOUT=100mA)*  •Output current :500mA (VIN=3.0V, VOUT=1.8V)*  •Oscillation Frequency  :600kHz, 1.2MHz  •(Fixed frequency accuracy±15%)  |