Datasheet

MAX1714
High-Speed Step-Down Controller
for Notebook Computers
22 ______________________________________________________________________________________
I
LIM
V
CC
V
IN
4.5V TO 5.5V
L1
0.5µH
V
OUT
2.5V AT 7A
SHDN
1µF
0.1µF
0.22µF
C2
3 x 470µF
KEMET T510
IRF7805
IRF7805
1µF20Ω
C1
4 x 10µF/25V
ON/OFF
DL
LX
BST
DH
PGND
(GND)
(GND)
( ) = ARE FOR THE MAX1714B ONLY.
NOTE: IN THE MAX1714B, AGND AND PGND ARE
INTERNALLY CONNECTED TO THE GND PIN.
OUT
FB
AGND
V
DD
V
CC
V+
MAX1714
REF
TON
SKIP
100k
PGOOD
Figure 10. 5V Powered, 7A CPU Buck Regulator
Pin Configurations
TOP VIEW
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
LX
BST
SKIP
V+FB
SHDN
N.C.
DH
TON
V
CC
V
DD
DLAGND
REF
ILIM
OUT
12
11
9
10
PGND
N.C.PGOOD
N.C.
MAX1714A
QSOP
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
LX
BST
SKIP
V+OUT
FB
SHDN
DH
TON
V
CC
V
DD
DLGND
PGOOD
REF
ILIM
QSOP
MAX1714B