ltc3890 Linear Technology Corporation, ltc3890 Datasheet - Page 33

• Manufacturer Part Number: ltc3890
• Description: 60v Low Iq, Dual, 2-phase Synchronous Step-down Dc/dc Controller
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
6.98k
C
C
R
ITH1
ITH2
A1
R
18.7k
41.2k
R
FREQ
A2
470pF
470pF
C
C
C
SS2
ITH1A
SS1
0.01μF
0.01μF
100pF
100k
100k
R
R
R
R
34.8k
B1
20k
B2
ITH1
ITH2
MTOP1, MTOP2, MBOT1, MBOT2: RJK0651DPB
L1: COILCRAFT SER1360-802KL
L2: COILCRAFT SER1360-472KL
C
C
D1, D2: DFLS1100
OUT1
OUT2
High Effi ciency Dual 12V/5V Step-Down Converter
: 16SVP180MX
: SANYO 6TPE470M
C1
1nF
C2
1nF
SENSE1
SENSE1
V
ITH1
TRACK/SS1
I
PHSMD
CLKOUT
PLLIN/MODE
SGND
EXTV
RUN1
RUN2
FREQ
TRACK/SS2
ITH2
V
SENSE2
SENSE2
LIM
FB1
FB2
CC
LTC3890
+
–
–
+
PGOOD1
PGOOD2
BOOST1
BOOST2
INTV
PGND
SW1
SW2
BG1
TG1
BG2
TG2
V
CC
IN
100k
100k
C
B2
0.47μF
D1
D2
C
0.47μF
B1
INTV
C
4.7μF
CC
INT
MBOT1
MTOP1
MTOP2
MBOT2
4.7μH
8μH
L1
L2
R
R
C
180μF
10mΩ
SENSE1
SENSE2
9mΩ
C
220μF
OUT1
IN
3890 TA04
V
12V
3A
V
12.5V TO 60V
OUT1
IN
C
470μF
V
5V
5A
OUT2
OUT2
LTC3890
33
3890f