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| LTC3736-1 Datasheet, PDF (25/28 Pages) Linear Technology – Dual 2-Phase, No RSENSE Synchronous Controller with Spread Spectrum | |||
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TYPICAL APPLICATIO S
LTC3736-1
VIN
3.3V
CIN
22µF
RFB1A
59k
CFF1
100pF
RFB1B
187k
CITH1
220pF
RITH1
15k
2200pF
RVIN 10â¦
1
SW1
2
3
4
5
IPRG1
VFB1
ITH1
IPRG2
6 FREQ
7 SGND
SENSE1+ 24
PGND 23
BG1 22
SSDIS
TG1
21
20
PGND 19
TG2 18
5
LTC3736EGN-1
VIN
RUN/SS
17
CITH2
CVIN 220pF
1µF
RITH2
15k
16
12
10
11
9
PGOOD
VFB2
ITH2
TRACK
BG2
PGND
SENSE2+
15
14
SW2 13
RFB2A
59k
RTRACKA RFB2B RTRACKB
590⦠118k 1.18k
4.7nF
CFF1
100pF
SSDIS
MP1
SW1
MN1
Si7540DP
L1
1.5µH
D1 +
VOUT1
2.5V
3A
COUT1
150µF
MN2
D2
Si7540DP
COUT2
150µF VOUT2
1.8V
MP2
SW2
L2
4A
1.5µH
COUT1, COUT2: SANYO 4TPB150MC
L1, L2: VISHAY IHLP-2525CZ-01
D1, D2: OPTIONAL SCHOTTKY DIODE
37361 F15
Figure 15. 2-Phase, Fixed 550kHz or Spread Spectrum, Dual Output Synchronous DC/DC Converter
37361f
25
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