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LTC1871 Datasheet(PDF) 32 Page - Linear Technology

Part # LTC1871
Description  PolyPhase Synchronous Boost Controller
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1871 Datasheet(HTML) 32 Page - Linear Technology

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LTC3787
32
3787fc
Figure 15. 4-Phase Single Output Boost Converter
TYPICAL APPLICATIONS
MBOT2
MTOP2
SENSE2+
SENSE2–
SENSE1–
SENSE1+
VFB
ITH
SGND
EXTVCC
INTVCC
RUN
FREQ
SS
PLLIN/MODE
PGOOD
TG1
SW1
BOOST1
BG1
VBIAS
INTVCC
PGND
BG2
TG2
BOOST2
SW2
CB1, 0.1μF
COUTA1
22μF
4
CB2, 0.1μF
CINT1
4.7μF
RB
232k
LTC3787
L2
3.3μH
L1
3.3μH
MTOP1
MBOT1
100k
INTVCC
RSENSE1
4mΩ
CSS, 0.1μF
RA, 12.1k
CITHA, 220pF
RITH, 8.66k
CITH, 15nF
RSENSE2
4mΩ
D1
D2
ILIM
PHASMD
CLKOUT
+
COUTB1
220μF
VOUT
24V, 20A*
VIN
5V to 24V
COUTA2
22μF
4
+
COUTB2
220μF
CINA
22μF
4
+
CINB
220μF
MBOT4
MTOP4
SENSE2+
SENSE2–
SENSE1–
SENSE1+
VFB
ITH
SGND
EXTVCC
RUN
FREQ
SS
PLLIN/MODE
PGOOD
TG1
SW1
BOOST1
BG1
VBIAS
INTVCC
PGND
BG2
TG2
BOOST2
SW2
CB3, 0.1μF
COUTA3
22μF
4
CB4, 0.1μF
CINT2
4.7μF
LTC3787
L4
3.3μH
L3
3.3μH
MTOP3
MBOT3
100k
INTVCC
RSENSE3
4mΩ
RSENSE4
4mΩ
D3
D4
ILIM
PHASMD
CLKOUT
+
COUTB3
220μF
COUTA4
22μF
4
+
COUTB4
220μF
3787 F15
CINA, COUTA1, COUTA2, COUTA3, COUTA4: TDK C4532X5R1E226M
CINB, COUTB1, COUTB2, COUTB3, COUTB4: SANYO, 50CE220LX
L1, L2, L3, L4: PULSE PA1494.362NL
MBOT1, MBOT2, MBOT3, MBOT4, MTOP1, MTOP2, MTOP3, MTOP4: RENESAS HAT2169H
D1, D2, D3, D4: BAS140W
*WHEN VIN < 8V, MAXIMUM LOAD CURRENT AVAILABLE IS REDUCED.



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