LTC3520 Datasheet, PDF (20/24 Pages) Linear Technology – Synchronous 1A Buck-Boost and 600mA Buck Converters

LTC3520
APPLICATIONS INFORMATION
SGND
SV_IN 1
A_OUT 2
24 23 22 21 20 19
18 ^FB1
17 ^SS1
C_SS1
A_IN 3
R_T
R_T 4
PWM1 5
SD1 6
16 SGND
15 VC1
14 ^FB2
13 ^SS2
7 8 9 10 11 12
C_SS2
R_BURST
BUCK-BOOST
V_OUT
KELVIN DIRECTLY
TO PIN 16
KELVIN DIRECTLY
TO PIN 16
3520 F08
BUCK V_OUT
UNINTERRUPTED GROUND PLANE MUST EXIST UNDER ALL COMPONENTS
SHOWN IN BOLD AND UNDER TRACES CONNECTING TO THOSE COMPONENTS.
VIA TO GROUND PLANE
Figure 8. LTC3520 Recommended PCB Layout
3520f
20