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| LTC3788 Datasheet, PDF (29/32 Pages) Linear Technology – 2-Phase, Dual Output Synchronous Boost Controller | |||
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TYPICAL APPLICATIONS
LTC3788
RB1
232k
RA1
12.1k
CITH1, 220pF
CITH1, 15nF
RITH1
8.66k
CSS1, 0.1μF
CSS2, 0.1μF
CITH2, 15nF
RITH2
2.7k
CITHA2, 100pF
RA2
12.1k
RB2
110k
SENSE1â
SENSE1+
PGOOD2
PGOOD1
100k INTVCC
100k
LTC3788
VFB1
TG1
SW1
BOOST1
ITH1
BG1
SS1
ILIM
PHSMD
CLKOUT
PLLIN/MODE
SGND
EXTVCC
RUN1
RUN2
FREQ
VBIAS
INTVCC
PGND
BG2
BOOST2
CB1, 0.1μF
D1
CINT
4.7μF
D2
CB1, 0.1μF
SS2
SW2
ITH2
TG2
VFB2
SENSE2+
SENSE2â
MTOP1
L1
3.3μH
RSENSE1
4mΩ
COUTA1 +
22μF
s4
VOUT1
24V, 5A
COUTB1
220μF
MBOT1
MBOT2
CINA +
22μF
s4
VIN
5V TO 24V
CINB
220μF
L2
RSENSE2
1.25μH 3mΩ
MTOP2
COUTA2 +
22μF
s4
VOUT
12V, 10A
COUTB2
220μF
CINA, COUTA1, COUTA2: SANYO, 50CE220AX
CINB, COUTB1, COUTB2: TDK C4532X5R1E226M
L1: PULSE PA1494.362NL
L2: PULSE PA1294.132NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS HAT2169H
3788 F09
Figure 9. High Efï¬ciency Dual 12V/24V Boost Converter
3788f
29
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