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| LTC3890-3 Datasheet, PDF (34/40 Pages) Linear Technology – 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller | |||
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LTC3890-3
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
BG1
SW1
ITH1
BOOST1
LTC3890-3
TRACK/SS1
TG1
VIN
PLLIN/MODE 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
Ã3
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
38903 TA03
34
For more information www.linear.com/3890-3
38903f
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