ltc3858-2 Linear Technology Corporation, ltc3858-2 Datasheet - Page 34

• Manufacturer Part Number: ltc3858-2
• Description: Ltc3858-2 - Low Iq, Dual 2-phase Synchronous Step-down Controller
• Manufacturer: Linear Technology Corporation

LTC3858-2
TYPICAL APPLICATIONS
34
68.1k
820pF
820pF
C
C
R
68.1k
R
ITH1
ITH2
A2
A1
R
R
215k
143k
22pF
15pF
R
22k
15k
R
C
C
ITH1
ITH2
B1
B2
F1
F2
C
L1: SUMIDA CDEP105-2R5
L2: SUMIDA CDEP105-3R2M
MTOP1, MTOP2, MBOT1, MBOT2: VISHAY Si7848DP
C
0.01μF
0.01μF
C
OUT1
100pF
150pF
1nF
C
C
1nF
ITH1A
ITH2A
C1
C2
SS1
SS2
, C
OUT2
: SANYO 10TPD150M
SENSE1
SENSE1
V
I
SS1
I
PHASMD
CLKOUT
PLLIN/MODE
SGND
EXTV
RUN1
RUN2
FREQ
SS2
I
V
SENSE2
SENSE2
TH1
LIM
TH2
FB1
FB2
High Efficiency Dual 2.5V/3.3V Step-Down Converter
CC
LTC3858-2
+
–
–
+
PGOOD2
PGOOD1
BOOST1
BOOST2
INTV
PGND
SW1
SW2
BG1
TG1
TG2
BG2
V
CC
IN
100k
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
38582 TA02
C
150μF
C
150μF
OUT1
OUT2
V
3.3V
5A
V
2.5V
5A
OUT1
OUT2
38582f