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ISL80083
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2.5MHz Integrated Power Management IC with I2C Compatible Interface
DATASHEET
FN7886 Rev 1.00 May 15, 2013
ISL80083 is an integrated mini Power Management IC (mini-PMIC) for powering low-voltage microprocessor, or applications using a single Li-Ion or Li-Polymer cell battery to power multiple voltage rails. ISL80083 integrates a high-efficiency 2.5MHz synchronous step-down converter, a low-input low-dropout linear regulator, 33MHz oscillator, level shift, and input supply select.
The 2.5MHz PWM switching frequency allows for the use of very small external inductors and capacitors. The step-down converter can enter skip mode under light load conditions to further improve the efficiency and maximize the battery life. For noise sensitive applications, it can also be programmed through I2C interface to operate in forced PWM mode, regardless of the load current conditi.