ISL95908 Datasheet, PDF (1/2 Pages) Intersil Corporation – Integrated Power Management IC For IMVP8™ Platforms

DATASHEET
To request the full datasheet, please visit www.intersil.com/products/isl95908
Integrated Power Management IC For IMVP8™ Platforms
ISL95908
The ISL95908 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 8 highly efficient synchronous buck regulators
and VTT LDO. It is offered in a thermally efficient
5.5mmx5.5mm, 121-bump, 0.5mm pitch WLCSP package.
The PMIC regulators convert system voltage from the battery
or adapter into all platform voltages needed for a typical
computer system including 5V and 3.3V system regulators,
1.8V/2.5V, 1V, 0.975V, 0.9V for controller-hub, peripheral and
core voltages as well as programmable VDDQ and VTT
regulators for DDR3/3U/3L, LPDDR3 and DDR4 voltages. The
switching regulators operate at 1MHz and are based on
Intersil’s proprietary R4™ Technology, which provides high
light-load efficiency, fast transient response, seamless
DCM/CCM transitions and requires no external compensation.
The PMIC provides overcurrent, overvoltage and
over-temperature fault protections and undervoltage and
over-temperature warnings. A temperature alert signal
indicates the PMIC is operating at an elevated temperature
and ALERT indicates if any other fault or warning has occurred.
The PMIC also offers significant I²C capability and can be
configured to provide 8 GPIO pins for additional system
functionality and each regulator has an independent
power-good indicator.
Features
• Highly integrated power management IC
• Efficient 1MHz integrated FET switching regulators
• Internal compensation, no external compensation
• Computer system platform voltage regulators 5V, 3.3V,
1.8V/2.5V, 1V, 0.975V, 0.9V
• Programmable VR3 and VTT regulators for memory
(DDR3/L/U, LPDDR3 and DDR4)
• Extensive fault protection
- Overcurrent protection
- Over-temperature protection
- Overvoltage and undervoltage protection
- Temperature alert signal
• Independent power-good indicator for each regulator
• Independent enable signals for each regulator for maximum
sequencing flexibility
• Low power consumption mode for connected standby
• I²C bus allows system fault monitoring, enable control and
configurable GPIO programming
• Output voltage offset programming through I²C
• Configuration pin provides additional system programming
options
Applications
• Ultrabook, notebook and tablet computers
Related Literature
• UG027, “ISL95908EVAL1Z Evaluation Board User Guide”
ADAPTER ^ISL95520
NVDC
Charger
Vsys
X86 or
ARM
V_CORE
Vcore
VCCIO, 3A
V1.00A, 7A
V5A, 5A
CONFIG
EN/GPIO
I²C
CS#
ISL95908
PMIC
V1.8A, 2.5A
VCCPRIM_CORE, 1.5A
V1.8_V2.5U, 1A
VDDQ, 8A
VTT, 1.1A
V3.3_DSW, 7A
PGOOD
TEMP ALERT
FIGURE 1. COMPUTER SYSTEM POWER MANAGEMENT SOLUTION
April 10, 2015
FN8730.0
1
ISL95908 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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