General Description
The MAX17528 comprises 1-phase Quick-PWM™ stepdown VID power-supply controllers for Intel notebook CPUs. The Quick-PWM control provides instantaneous response to fast-load current steps. Active voltage positioning reduces power dissipation and bulk output capacitance requirements and allows ideal positioning compensation for tantalum, polymer, or ceramic bulk output capacitors.
Features
♦ 1-Phase Quick-PWM Controller
♦ ±0.5% VOUT Accuracy Over Line, Load, and Temperature
♦ 7-Bit IMVP-6.5 DAC
♦ IMVP-6.5 and GMCH Compliant
♦ Active Voltage Positioning with Adjustable Gain
♦ Accurate Droop and Current Limit
♦ Remote Output and Ground Sense
♦ Adjustable Output-Voltage Slew Rate
♦ Power-Good Window Comparator
♦ Current Monitor
♦ Temperature Comparator
♦ Drives Large Synchronous Rectifier FETs
♦ 2V to 26V Battery Input Range
♦ Adjustable Switching Frequency (600kHz max)
♦ Undervoltage and Thermal-Fault Protection
♦ Soft-Startup and Soft-Shutdown
♦ Internal Boost Diode
Applications
IMVP-6.5 Core Power Supply Intel GMCH 2009
Intel Calpella Platforms
Graphics Core Power Supply
Voltage-Positioned Step-Down Converters
1-to-4 Lithium-Ion (Li+)-Cell Battery-to-CPU Core Supply Converters
Notebooks/Desktops/Servers
