Overview: ® ISL9106
Data Sheet June 29, 2007 FN6509.0 1.2A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9106 is a 1.2A, 1.6MHz step-down regulator, which is ideal for powering low-voltage microprocessors in pact devices such as PDAs and cellular phones. It is optimized for generating low output voltages down to 0.8V. The supply voltage range is from 2.7V to 5.5V allowing the use of a single Li+ cell, three NiMH cells or a regulated 5V input. 1.6MHz pulse-width modulation (PWM) switching frequency allows using small external ponents. It has flexible .. operation mode selection of forced PWM mode and Skip (Low IQ) mode with typical 17μA quiescent current for highest light load efficiency to maximize battery life. The ISL9106 integrates a pair of low ON-resistance P-Channel and N-Channel MOSFETs to maximize efficiency and minimize external ponent count. The ISL9106 offers a typical 215ms Power-Good (PG) timer when powered up. The timer output can be reset by RSI. When shutdown, ISL9106 discharges the output capacitor.
