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LTC3425 Datasheet(Fiches technique) 24 Page - Linear Technology

Numéro de pièce LTC3425
Description  5A, 8MHz, 4-Phase Synchronous Step-Up DC/DC Converter
Télécharger  24 Pages
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
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 24 page
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LTC3425
24
3425f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
©LINEAR TECHNOLOGY CORPORATION 2003
LT/TP 0803 1K PRINTED IN USA
TYPICAL APPLICATIO
10MHz, High Current, Very Low Profile, 8-Phase Converter Using Two LTC3425s Operating
in Fixed Frequency Mode with Forced CCM (Max Component Height = 1.6mm)
L5
1
µH
CIN2
2.2
µF
R6
75k
RT2
14.7k
RF4
17.4k
RF3
10.2k
L6
1
µH
L7
1
µH
L8
1
µH
CIN1,2: TAIYO YUDEN JMK107BJ225MA
COUT: TAIYO YUDEN JMK212BJ475MG (×8)
L1 TO L8: MURATA LQH32CN1R0M51
VIN
SWA
SWB
LTC3425
SWC
SWD
SGND
SHDN
VOUTS
VOUTA
VOUTB
VOUTC
VOUTD
REFOUT
CCM
REFEN
SYNCIN
BURST
RT
ILIM
PGOOD
SYNCOUT
SS
FB
COMP
GNDA
GNDB
GNDC
GNDD
C1
330pF
3425 TA05
COUT2
4.7
µF
×4
CSS
0.022
µF
R3
33k
RF2
17.4k
R4
100k
PGOOD
RF1
10.2k
VOUT
3.3V
5A
L1
1
µH
CIN1
2.2
µF
R5
75k
RT1
12.1k
L2
1
µH
L3
1
µH
L4
1
µH
VIN
VOUT
VIN
2.5V
SWA
SWB
LTC3425
SWC
SWD
SGND
SHDN
VOUTS
VOUTA
VOUTB
VOUTC
VOUTD
REFOUT
CCM
REFEN
SYNCIN
BURST
RT
ILIM
PGOOD
SYNCOUT
SS
FB
COMP
GNDA
GNDB
GNDC
GNDD
COUT1
4.7
µF
×4
VOUT
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