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| LTC3826-1 Datasheet, PDF (30/32 Pages) Linear Technology – 30μA IQ, Dual, 2-Phase Synchronous Step-Down Controller | |||
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LTC3826-1
TYPICAL APPLICATIONS
High Efï¬ciency Dual 1.2V/1V Step-Down Converter
CSS1
0.01μF
CITH1A
100pF
CITH1
1.2nF
RITH1
23.7k
RA1
102k
RB1
25.5k
C1
1nF
RA2
100k
CITH2
1nF
RITH2
33.2k
CITH2A
100pF
CSS2
0.01μF
C2
1nF
RB2
49.9k
270pF
470pF
ITH1
TRACK/SS1
VFB1
SENSE1+
PGOOD1
TG1
SENSE1â
SW1
PLLLPF
BOOST1
PLLIN/MODE
BG1
SGND
VIN
LTC3826-1
RUN1
PGND
RUN2
SENSE2â
SENSE2+
EXTVCC
INTVCC
BG2
VFB2
BOOST2
ITH2
SW2
TRACK/SS2
TG2
R2
100k
CB1 0.47μF
D1
CINT2
4.7μF
D2 CB2
0.47μF
MTOP1, MTOP2, MBOT1, MBOT2: Si7848DP
L1: CDEP105-1R8M
L2: CDEP105-2R2M
COUT1, COUT2 = SANYO 10TPD150M
MTOP1 L1
1.8μH
RSNS1
12mΩ
MBOT1
CIN1
10μF
CIN2
10μF
COUT1
220μF
s2
VOUT1
1.0V
5A
VIN
12V
MTOP2 L2
2.2μH
RSNS2
12mΩ
MBOT2
38261 TA05
VOUT2
COUT2 1.2V
220μF
s2
5A
38261fb
30
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