ltc3858-2 Linear Technology Corporation, ltc3858-2 Datasheet - Page 37

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

TYPICAL APPLICATIONS
1000pF
1000pF
115k
C
R
R
C
115k
R
60k
ITH2
FREQ
A2
ITH1
A1
R
3.93k
57.6k
28.7k
56pF
56pF
ITH2
R
R
C
C
R
3.93k
B2
B1
F1
F2
ITH1
C
C
200pF
200pF
ITH2A
1nF
ITH1A
1nF
C1
C2
0.01μF
0.01μF
C
C
SS1
SS2
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 1V/1.2V Step-Down Converter
CC
LTC3858-2
+
–
–
+
PGOOD2
PGOOD1
BOOST1
BOOST2
INTV
PGND
SW1
SW2
BG1
TG1
BG2
TG2
V
CC
IN
100k
100k
C
L1: SUMIDA CDEP105-0R4
L2: SUMIDA CDEP105-0R4
MTOP1, MTOP2: RENESAS RJK0305
MBOT1, MBOT2: RENESAS RJK0328
OUT1
INTV
, C
D1
D2
OUT2
CC
C
0.47μF
C
0.47μF
: SANYO 2R5TPE220M
B1
B2
C
4.7μF
INT
MTOP2
MBOT1
MTOP1
MBOT2
C
22μF
0.47μH
0.47μH
IN
L1
L2
V
12V
IN
R
R
SENSE1
4mΩ
SENSE2
4mΩ
38582 TA05
C
220μF
LTC3858-2
C
220μF
OUT1
2
OUT2
2
V
1.2V
8A
V
1V
8A
OUT2
OUT1
37
38582f