LTC3858-1 Linear Technology Corporation, LTC3858-1 Datasheet - Page 31

• Manufacturer Part Number: LTC3858-1
• Description: Dual 2-Phase Synchronous Step-Down Controller
• Manufacturer: Linear Technology Corporation

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TYPICAL APPLICATIONS
C
C
ITH1A
ITH2
68.1k
68.1k
R
R
A2
A1
C
820pF
ITH1
100pF
820pF
143k
215k
22pF
15pF
R
R
C
C
B1
B2
F1
F2
C
R
R
ITH2A
ITH1
ITH2
C
L1: SUMIDA CDEP105-2R5
L2: SUMIDA CDEP105-3R2M
MTOP1, MTOP2, MBOT1, MBOT2: VISHAY Si7848DP
C
C
OUT1
1nF
SS1
SS2
1nF
C1
150pF
C2
22k
15k
, C
0.01μF
0.01μF
OUT2
: SANYO 10TPD150M
SENSE1
SENSE1
V
I
SS1
PLLIN/MODE
SGND
EXTV
RUN1
RUN2
FREQ
SS2
I
V
SENSE2
SENSE2
TH1
TH2
FB1
FB2
High Effi ciency Dual 2.5V/3.3V Step-Down Converter
CC
LTC3858-1
+
–
–
+
PGOOD1
BOOST1
BOOST2
INTV
PGND
SW1
SW2
BG1
TG1
TG2
BG2
V
CC
IN
100k
INTV
D1
D2
CC
C
0.47μF
C
0.47μF
B1
B2
C
4.7μF
INT
MBOT1
MTOP1
MTOP2
MBOT2
C
22μF
IN
2.4μH
3.2μH
L1
L2
V
4V TO 38V
IN
R
R
SENSE1
SENSE2
7mΩ
7mΩ
38581 F13
C
150μF
C
150μF
OUT1
OUT2
LTC3858-1
V
3.3V
5A
V
2.5V
5A
OUT2
OUT1
31
38581f