MAX1718 Maxim, MAX1718 Datasheet - Page 33

• Manufacturer Part Number: MAX1718
• Description: Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning IMVP-II
• Manufacturer: Maxim

Figure 19. Power-Stage PC Board Layout Example
CONNECT LOCAL ANALOG GROUND PLANE DIRECTLY TO GND FROM
THE SIDE OPPOSITE THE V
CURRENTS FROM FLOWING IN THE ANALOG GROUND PLANE.
CONNECT TO LOCAL PLANE ONLY
Notebook CPU Step-Down Controller for Intel
ALL ANALOG GROUNDS
NOTES: "STAR" GROUND IS USED.
D1 IS DIRECTLY ACROSS Q2.
______________________________________________________________________________________
V
CC
REF
CC
DD
CAPACITOR GND TO AVOID V
MAX1718
Mobile Voltage Positioning (IMVP - II)
V
DD
GND
VIA TO SOURCE
DD
VIA TO LX
GROUND
VIA TO GND
NEAR Q2 SOURCE
OF Q2
Q1
INDUCTOR DISCHARGE PATH HAS LOW DC RESISTANCE
D1
Q2
L1
CIN
V
BATT
COUT
GND IN
R6
VIA TO FB
AND FBS
GND
OUT
V
OUT
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