Datasheet

MAX1714
High-Speed Step-Down Controller
for Notebook Computers
______________________________________________________________________________________ 23
D1 Q2
V
BATT
GND IN
C
OUT
VIA TO OUT
NEAR C
OUT
+
VIA TO LX
VIA TO SOURCE
OF Q2
VIA TO PGND
NEAR Q2 SOURCE
INDUCTOR DISCHARGE PATH HAS LOW DC RESISTANCE.
GND
OUT
V
OUT
L1
Q1
V
CC
V
DD
REF
AGND
ALL ANALOG GROUNDS
CONNECT TO AGND ONLY
NOTES: "STAR" GROUND IS USED.
D1 IS DIRECTLY ACROSS Q2.
CONNECT AGND TO PGND
BENEATH IC, 1 POINT ONLY.
SPLIT ANALOG GND PLANE AS SHOWN.
I
LIM
MAX1714
CIN
Figure 11. Power-Stage PC Board Layout Example