LTC3828 Datasheet, PDF (26/32 Pages) Linear Technology – Dual 2-Phase Step-Down Controller with Tracking

LTC3828
APPLICATIO S I FOR ATIO
R1
R2
fIN
R3
R4
R_{PU VPULL_UP}
1
<5.5V
28
L1
TRCKSS1
CLKOUT
PGOOD
2
I_TH1
27
PGOOD
3
LTC3828
SENSE1⁺
BOOST1
26
4 _SENSE1–
5
V_OSENSE1
6
PLLFLTR
25
TG1
24
SW1
23
V_IN
C_B1
M1
R_IN
7
RUN1
8
FCB/PLLIN
22
INTV_CC
21
PGND
C_VIN
C_IN
C_INTVCC
V_IN
9
SGND
20
BG1
10
TRCKSS2
19
BG2
11 _SENSE2–
18
SW2
12 _SENSE2+
17
TG2
C_B2
M3
13
I_TH2
16
BOOST2
14
V_OSENSE2
15
RUN2
L2
R_SENSE1
V_OUT1
M2
D1
C_OUT1
C_OUT2
M4
D2
R_SENSE2
V_OUT2
3828 F12
Figure 12. LTC3828 Recommended Printed Circuit Layout Diagram
3828f
26