ltc3858-2 Linear Technology Corporation, ltc3858-2 Datasheet - Page 36

• 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
36
680pF
R
680pF
C
R
75k
16.9k
C
R
60k
FREQ
ITH2
ITH1
A2
A1
R
R
392k
487k
18pF
15pF
R
46k
R
C
17k
C
ITH1
ITH2
B2
B1
F1
F2
0.01μF
C
C
100pF
0.01μF
100pF
C
C
1nF
ITH1A
1nF
ITH2A
C1
SS1
C2
SS2
V
OUT2
V
I
SS1
PLLIN/MODE
SGND
I
SENSE1
SENSE1
I
PHASMD
CLKOUT
EXTV
RUN1
RUN2
FREQ
SS2
V
SENSE2
SENSE2
TH1
LIM
TH2
FB1
FB2
High Efficiency Dual 24V/5V Step-Down Converter
CC
LTC3858-2
+
–
–
+
PGOOD2
PGOOD1
BOOST1
BOOST2
INTV
PGND
SW1
SW2
BG1
TG1
BG2
TG2
V
CC
IN
C
L1: SUMIDA CDRH105R-220M
L2: SUMIDA CDEP105-4R3M
MTOP1, MTOP2, MBOT1, MBOT2: VISHAY Si7848DP
100k
100k
OUT2
: SANYO 10TPD150M
INTV
D1
D2
CC
C
0.47μF
C
0.47μF
B1
B2
C
4.7μF
INT
MBOT1
MTOP1
MTOP2
MBOT2
C
22μF
IN
4.3μH
22μH
L1
L2
V
28V TO 38V
IN
R
R
25mΩ
SENSE1
SENSE2
7mΩ
38582 TA04
C
22μF
CERAMIC
C
150μF
OUT1
2
OUT2
V
24V
1A
V
5V
5A
OUT2
OUT1
38582f