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| LTC3827 Datasheet, PDF (33/36 Pages) Linear Technology – Low IQ, Dual, 2-Phase Synchronous Step-Down Controller | |||
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LTC3827
TYPICAL APPLICATION
High Efï¬ciency Synchronizable Dual 5V/8V Step-Down Converter
CSS1
0.01μF
CITH1A
100pF
CITH1
420pF
RITH1
10k
RA1
69.8k
RB1
365k
C1
10nF
1nF
10k
RA2
39.2k
CITH2
560pF
RITH2
35k
CITH2A
100pF
CSS2
0.01μF
C2
1nF
RB2
353k
39pF
LTC3827
ITH1
TRACK/SS1
PGOOD2
VFB1
PGOOD1
SENSE1+
TG1
SENSE1â
SW1
PLLLPF
PHASMD
CLKOUT
PLLIN/MODE
SGND
RUN1
RUN2
BOOST1
BG1
VIN
PGND
EXTVCC
SENSE2â
INTVCC
SENSE2+
BG2
VFB2
BOOST2
ITH2
SW2
TRACK/SS2
TG2
FOLDDIS
22pF
100k
100k
CB1 0.47μF
D1
CINT2
1μF
D2 CB2
0.47μF
MTOP1 L1
3.3μH
MBOT1
D3
RSNS1
12mΩ
COUT1
150μF
VOUT1
5V
5A
CINT1
4.7μF
VIN
12V
CIN1
10μF
CIN2
10μF
MTOP2 L2
7.2μH
MBOT2
D4
RSNS2
20mΩ
COUT2
150μF
VOUT2
8V
2A
MTOP1, MTOP2, MBOT1, MBOT2: Si7848DP
L1: CDEP105-3R2M
L2: CDEP105-7R2M
COUT1, COUT2 : SANYO 10TPD150M
3827 TA04
3827ff
33
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