Overview: ISL80083 1c-oN8nO8t8aR-cINEt oCTOuEOBrRMTSSMeOIcLELhNoEnrDTicwEEawDlPSwRRu.OEipnPDpteLUorACrstCiTlC.EceMonmEteN/rtsTact 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 condition. The I2C interface supports on-the-fly control of the output voltage from 0.625V to 2.225V at 25mV/step size for dynamic power saving. The step-down converter can supply up to 800mA load current. ISL80083 also provides a 300mA low dropout (LDO) regulator. The input voltage range is from 2.6V to 5.5V allowing it to be powered from one of the on-chip step-down converters or directly from the battery. The default LDO output comes with factory pre-set fixed output voltage options between 0.9V to 3.6V.
ISL80083 is available in a 2.11mm x 2.13mm 25 Ball CSP package.
