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| LTC3890 Datasheet, PDF (32/36 Pages) Linear Technology – 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller | |||
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LTC3890
TYPICAL APPLICATIONS
High Efï¬ciency 8.5V Dual-Phase Step-Down Converter
RA1
10.5k
RB1
100k
CITH1A 100pF
RITH1 34.8k
CITH1
470pF
CSS1 0.01μF
INTVCC RMODE
100k
RRUN
1000k
VOUT
VIN
RFREQ 41.2k
CITH2
100pF
SENSE1+
C1
1nF
SENSE1â
VFB1
PGOOD1
PGOOD2
BG1
SW1
ITH1
BOOST1
LTC3890
TRACK/SS1
TG1
ILIM
PHSMD
CLKOUT
PLLIN/MODE
VIN
INTVCC
SGND
EXTVCC
RUN1
RUN2
FREQ
PGND
TG2
TRACK/SS2
BOOST2
ITH2
SW2
BG2
VFB2
SENSE2â
C2
1nF
SENSE2+
INTVCC
100k
CB1
0.1μF
D1
CINT
4.7μF
MBOT1
L1
8μH
RSENSE1
10mΩ
MTOP1
VIN
CIN 9V TO 60V
220μF
VOUT1
8.5V
6A
COUT1
330μF
D2
CB2 0.1μF
MTOP2
L2 RSENSE2
8μH 10mΩ
MBOT2
COUT2
330μF
MTOP1, MTOP2, MBOT1, MBOT2: RJK0651DPB
L1, L2: COILCRAFT SER1360-802KL
COUT1, COUT2: SANYO 10TPE330M
D1, D2: DFLS1100
3890 TA03
3890f
32
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