Datasheet

MAX8855/MAX8855A
Dual, 5A, 2MHz Step-Down Regulators
18 ______________________________________________________________________________________
Figure 7. Tracking DDR Application Circuit
MAX8855/
MAX8855A
IN2
PGND2
PGND2
C2
0.1μF
BST2
LX2
C17
0.1μF
C13
150pF
R9
1kΩ
C23
10μF
PWRGD2
FB2
GND
COMP2
C19
22μF
C20
0.1μF
OUT2
1.8V/5A
OUT1
0.9V/5A
PWRGD2
L2
1μH
R10
27kΩ
C15
220pF
SS2
C12
0.022μF
C14
OPEN
V
DD
FSYNC
REFIN
SS1
R5
5kΩ
R13
40.2kΩ
R12
20kΩ
R10
20kΩ
IN1
INPUT 2.35V TO 3.6V FOR MAX8855
2.25V TO 3.6V FOR MAX8855A
PGND1
C3
0.1μF
BST1
LX1
C6
0.1μF
C11
1000pF
R8
200Ω
C1
10μF
FB1
COMP1
C18
47μF
C4
0.1μF
L1
1μH
C16
0.1μF
R11
10Ω
C8
0.22μF
V
DD
R7
10kΩ
C9
330pF
C10
OPEN
R4
10kΩ
R19
1kΩ
R1
1kΩ
EN2
EN2
V
DD
PWRGD1
PWRGD1
V
DD
R15
20kΩ
C7
1000pF
EN1
EN1
EXPOSED PAD
OFF
ON
OFF
ON
VDL
OUT2