| Description & Applications | PWM / PFM switching control, boost DC / DC Controller / Converter •Operating (start-up) voltage range: 0.9V~10V •Output voltage range : 2.0V~7.0V in 0.1V increments •Highly accurate : Set-up voltage ±2.5% •Oscillator frequency : 50kHz, 100kHz, 180khz (±15%) selectable •Maximum output currents (Tr built-in) : Typ.100mA @ VIN=3.0, •VOUT=5.0V .....Note(1) •Highly efficient (Tr built-in) : Typ.85% @ VIN=3.0, VOUT=5.0V .....Note(1) •Built-in switching transistor type and an external Tr type are available. •Five-lead packaged units offer either Chip Enable or •independent VOUT pin option. •Phase compensation and soft start-up circuits built-in Small |