FEATURES
Meets Intel® Mobile Voltage Positioning Requirements Lowest Processor Dissipation for Longest Battery Life Best Transient Containment Minimum Number of Output Capacitors System Power Management Compliant Fast, Smooth Output Transition During VID Code Change Programmable Current Limit Power Good Integrated LDO Controllers for Clock and I/O Supplies Programmable UVLO Soft Start with Restart Lock-In APPLICATIONS
Geyserville-Enabled Core DC-DC Converters Fixed Voltage Mobile CPU Core DC-DC Converters Notebook/Laptop Power Supplies Programmable Output Power Supplies CLSET SSC SOFT START TIMER AND POWER GOOD GENERATOR SSL CORE GENERAL DESCRIPTION
The main output voltage is set by a 5-bit VID code. To accommodate the transition time required by the newest processors for on-thefly VID changes, the ADP3421 features high-speed operation to allow a minimized inductor size that results in the fastest change of current to the output. To further allow for the minimum number of output capacitors to be used, the ADP3421 features active voltage positioning that can be optimally compensated to ensure a superior load transient response.
Analog Devices
