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| LTC3425_15 Datasheet, PDF (22/24 Pages) Linear Technology – 5A, 8MHz, 4-Phase Synchronous Step-Up DC/DC Converter | |||
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LTC3425
TYPICAL APPLICATIO S
Application with User Commanded Burst Mode Operation
and Buffered Reference Output Enabled
VIN = 1.8V TO 3V
+
CIN
2.2µF
L1
L2
L3
L4
3.3µH 3.3µH 3.3µH 3.3µH
VIN
SHDN
VREF
REFOUT
C1
CCM
0.1µF
VOUT
REFEN
SYNCIN
BURST PWM
BURST
RT
30.1k
RT
ILIM
RLIM
75k
SGND
SWA
SWB
SWC
SWD
VOUTS
VOUTA
VOUTB
VOUTC
VOUTD
LTC3425
GNDA
GNDB
FB
COMP
SS
SYNCOUT
PGOOD
GNDC GNDD
COUT
4.7µF
Ã4
R4
10k
C3
22pF
R2 R4
511k 100k
VOUT
3.3V
2A
C2
330pF
R1
301k
R3
33k
CSS
0.01µF
PGOOD
CIN: TAIYO YUDEN JMK107BJ225MA
COUT: TAIYO YUDEN JMK212BJ475MG (Ã4)
L1 TO L4: SUMIDA CDRH4D28
3425 TA04
3425f
22
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