Datasheet

LTC3522
17
3522fa
APPLICATIONS INFORMATION
SHDN2
(16)
SW2
(14)
PGND1
(14)
PV
IN2
(15)
SHDN1
(7)
PV
IN1
(8)
PGOOD1
(6)
FB2
(1)
PWM
(2)
GND
(3)
PGOOD2
(4)
V
OUT1
(12)
SW1A
(11)
SW1B
(10)
PGND2
(9)
FB1
(5)
BUCK
V
OUT
BUCK-BOOST
V
OUT
VIA TO
GROUND PLANE
VIA TO
GROUND
PLANE
3522 F05
KELVIN TO
V
OUT
PAD
KELVIN TO
V
OUT
PAD
UNINTERRUPTED GROUND PLANE MUST
EXIST UNDER ALL COMPONENTS
SHOWN IN BOLD AND UNDER TRACES
CONNECTING TO THOSE COMPONENTS
DIRECT TIE
BACK TO
GND PIN
MINIMIZE
TRACE
LENGTH
MINIMIZE
TRACE
LENGTH
Figure 5. LTC3522 Recommended PCB Layout