The ISL95852 is a Power Management Integrated Circuit

(PMIC) for ultrabook, notebook and tablet computers powered

by 2-cell Li-ion batteries. It integrates control, MOSFET drivers,

power MOSFETs, fault protection and fault monitoring

functions for three highly efficient synchronous buck

regulators. Integrated into one package are the regulators for

the core, graphics and system agent voltages. The ISL95852 is

offered in a thermally efficient 4mmx4mm, 64-bump, 0.5mm

pitch WLCSP package.

The PMIC regulators convert the system voltage from a battery

or adapter into the three necessary processor voltages

required by Intel’s IMVP8 specifications. The switching

regulators operate at high frequency and are based on

Intersil’s proprietary R3™ Technology, which provides high

light-load efficiency and fast transient response with minimal

external compensation.

The PMIC provides overcurrent, overvoltage and

over-temperature fault protections. Also provided is a

temperature alert signal indicating the PMIC is operating at

elevated temperature and an ALERT signal indicates if any

other fault or warning has occurred. The PMIC also offers I2C

capability compatible with Intel’s SMBus specification.

Features

• Highly integrated power management IC

• Efficient high frequency integrated FET switching regulators

• Integrated regulators to produce core, graphics and system

agent rails

• Extensive fault protection

- Overcurrent, overvoltage and over-temperature protection

- Temperature alert signal

• SVID I2C bus allows system fault monitoring, enable control

• Output voltage offset programming through SVID I2C

Applications

• Ultrabook, notebook and tablet computers