LTC3858 Linear Technology, LTC3858 Datasheet - Page 31

• Manufacturer Part Number: LTC3858
• Description: Synchronous Step-Down Controller
• Manufacturer: Linear Technology

Typical applicaTions
C
C
ITH2
68.1k
ITH1
R
68.1k
R
A2
A1
C
820pF
ITH1A
820pF
143k
22pF
215k
15pF
R
R
100pF
C
C
C
B2
B1
F1
F2
C
SS1
R
R
ITH2A
ITH1
ITH2
C
L1: SUMIDA CDEP105-2R5
L2: SUMIDA CDEP105-3R2M
MTOP1, MTOP2, MBOT1, MBOT2: VISHAY Si7848DP
0.01µF
C
OUT1
1nF
1nF
SS2
C1
22k
15k
150pF
C2
, C
0.01µF
OUT2
: SANYO 10TPD150M
High Efficiency Dual 2.5V/3.3V Step-Down Converter
SENSE1
SENSE1
V
I
SS1
I
PHSMD
CLKOUT
PLLIN/MODE
SGND
EXTV
RUN1
RUN2
FREQ
SS2
I
V
SENSE2
SENSE2
TH1
LIM
TH2
FB1
FB2
CC
LTC3858
+
–
–
+
PGOOD2
PGOOD1
BOOST1
BOOST2
INTV
PGND
SW1
SW2
BG1
TG1
BG2
TG2
V
CC
IN
100k
100k
INTV
D1
D2
CC
C
0.47µF
C
0.47µF
B1
B2
C
4.7µF
INT
MTOP2
MBOT1
MTOP1
MBOT2
C
22µF
IN
2.4µH
3.2µH
L1
L2
V
4V TO 38V
IN
R
R
SENSE1
7m
SENSE2
7m
3858 F13
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C
150µF
C
150µF
OUT1
OUT2
V
2.5V
5A
V
3.3V
5A
LTC3858
OUT2
OUT1

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