ISL9120IR

DATASHEET ISL9120IR Compact High Efficiency Low Power Buck-Boost Regulator FN8743 Rev 1.00 February 2, 2016 The ISL9120IR is a highly integrated buck-boost switching regulator that accepts input voltages either above or below the regulated output voltage. This regulator automatically transitions between buck and boost modes without significant output disturbance. The ISL9120IR also has automatic bypass functionality for when the input voltage is generally within 1% to 2% of the output voltage, there will be a direct bypass connection between the VIN and VOUT pins. In addition to the automatic bypass functionality, the ISL9120IR also has a forced bypass functionality with the use of the BYPS pin. This device is capable of delivering up to 800mA of output current (VIN = 2.5V, VOUT = 3.3V) and provides excellent efficiency due to its adaptive current limit pulse frequency modulation (PFM) control architecture. The ISL9120IR is designed for stand-alone applications and supports a 3.3V f...