ltc3858-2 Linear Technology Corporation, ltc3858-2 Datasheet - Page 35

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

TYPICAL APPLICATIONS
680pF
680pF
C
C
R
R
75k
30.1k
R
ITH1
60k
ITH2
FREQ
A2
A1
R
R
33k
17k
422k
33pF
393k
ITH1
ITH2
15pF
R
R
C
C
B1
B2
F1
F2
C
0.01μF
0.01μF
C
100pF
100pF
C
C
1nF
ITH1A
ITH2A
1nF
SS1
SS2
C1
C2
V
OUT1
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 12V/5V Step-Down Converter
CC
LTC3858-2
+
–
–
+
PGOOD2
PGOOD1
BOOST1
BOOST2
INTV
PGND
SW1
SW2
BG1
TG1
TG2
BG2
V
CC
IN
C
C
L1: SUMIDA CDEP105-8R8M
L2: SUMIDA CDEP105-4R3M
MTOP1, MTOP2, MBOT1, MBOT2: VISHAY Si7848DP
100k INTV
100k
OUT1
OUT2
: KEMET T525D476M016E035
: SANYO 10TPD150M
D1
D2
CC
C
0.47μF
C
0.47μF
B1
B2
C
4.7μF
INT
MTOP2
MBOT1
MTOP1
MBOT2
C
22μF
IN
8.8μH
4.3μH
L1
L2
V
12.5V TO 38V
IN
R
R
10mΩ
SENSE1
SENSE2
7mΩ
38582 TA03
C
47μF
LTC3858-2
C
150μF
OUT1
OUT2
V
5V
5A
V
12V
3A
OUT2
OUT1
35
38582f