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| LTC3784_15 Datasheet, PDF (32/38 Pages) Linear Technology – 60V PolyPhase Synchronous Boost Controller | |||
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LTC3784
Typical Applications
INTVCC
CSS, 0.1µF
CITH, 10nF RITH, 23.7k
CITHA, 220pF
RA, 12.1k
RB
475k
SENSE1â
SENSE1+
ILIM
PGOOD
TG1
PHASMD
SW1
CLKOUT
OVMODE
BOOST1
PLLIN/MODE
SGND LTC3784 BG1
EXTVCC
RUN
FREQ
VBIAS
INTVCC
SS
PGND
ITH
BG2
VFB
SENSE2+
SENSE2â
BOOST2
SW2
TG2
100k
INTVCC
CB1, 0.1µF
D1
CINT
4.7µF
D2
CB2, 0.1µF
MTOP1
L1
16µH
RSENSE1
8mΩ
MBOT1
MBOT2
L2 RSENSE2
16µH 8mΩ
MTOP2
CIN, COUTA1, COUTA2: TDK C4532X7RIH685K
COUTB1, COUTB2: SANYO, 63CE220K
L1, L2: PULSE PA2050.163NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS RJK0652DPB
D1, D2: BAS170W
COUTA1 +
6.8µF
Ã4
COUTB1
220µF
VIN
CIN 5V TO 48V
6.8µF
Ã4
VOUT
48V
4A
COUTA2 +
6.8µF
Ã4
3784 F13
COUTB2
220µF
Figure 13. High Efficiency 2-Phase 48V Boost Converter
32
For more information www.linear.com/LTC3784
3784fb
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