LTC3115-2_15 Datasheet, PDF (32/42 Pages) Linear Technology – 40V, 2A Synchronous Buck-Boost DC/DC Converter

LTC3115-2
Applications Information
OPTIONAL SCHOTTKY DIODE
VIA TO GROUND PLANE
(AND TO INNER LAYER
WHERE SHOWN)
V_OUT
R_T
KELVIN
TO V_OUT
[1]
PGND
[2]
RUN
[3]
SW2
[21]
PGND
[20]
PGND
[19]
PWM/
SYNC
[18]
SW1
[4]
[17]
PV_OUT
PV_IN
[5]
KELVIN
GND
BACK TO
GND PIN
[6]
GND
[16]
BST1
[15]
BST2
[7]
VC
R_BOT
[8]
FB
R_TOP
[9]
RT
[14]
PV_CC
[13]
V_IN
[12]
V_CC
[10]
PGND
[11]
PGND
UNINTERRUPTED GROUND PLANE SHOULD EXIST UNDER ALL COMPONENTS SHOWN IN
BOLD AND UNDER TRACES CONNECTING TO THOSE COMPONENTS
Figure 18. PCB Layout Recommended for the FE Package
C_BST1
C_BST2
V_IN
INNER PCB
LAYER ROUTES
31152 F18
32
For more information www.linear.com/LTC3115-2
31152fa