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| LTC3890-2 Datasheet, PDF (34/40 Pages) Linear Technology – 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller | |||
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LTC3890-2
TYPICAL APPLICATIONS
High Efficiency 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
LTC3890-2
TRACK/SS1
TG1
ILIM
PHASMD
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
+ CIN
100μF
VIN
9V TO 60V
2.2μF
x3
D2
CB2 0.1μF
MTOP2
L2
RSENSE2
8μH 10mΩ
MBOT2
MTOP1, MTOP2, MBOT1, MBOT2: RJK0651DPB
L1, L2: COILCRAFT SER1360-802KL
COUT: SANYO 10TPE330M
D1, D2: DFLS1100
38902 TA03
VOUT1
8.5V
6A
COUT
330μF
38902f
34
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