Part Number |
MAX8707 |
Manufacturers |
Maxim Integrated Products |
Logo |
|
Description |
Fixed-Frequency Controller |
Datasheet |
MAX8707 Datasheet (PDF) |
19-3360; Rev 0; 8/04
Multiphase, Fixed-Frequency Controller for AMD Hammer CPU Core Power Supplies
General Description
The MAX8707 is a multiphase (3-/4-phase), interleaved, fixed-frequency, step-down controller for AMD Hammer CPU core supplies. Interleaved multiphase operation reduces the input ripple current and output voltage ripple while easing component selection and layout placement. The MAX8707 includes active voltage positioning with adjustable gain and offset, reducing power dissipation and bulk output-capacitance requirements. The MAX8707 is intended for two different notebook CPU core applications: stepping down the battery directly or stepping down the +5V system supply to create the core voltage. The single-stage conversion method allows these devices to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, 2-stage conversion (stepping down the +5V system supply instead of the battery) at higher switching frequency provides the mini.