Datasheet

32
LTC1628-SYNC
1628syncfa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear-tech.com
© LINEAR TECHNOLOGY CORPORATION 2005
LT 1205 REV A • PRINTED IN USA
RELATED PARTS
U
TYPICAL APPLICATIO
Figure 14. Multioutput Multiphase Application
PHASMD
CLKOUT
TG1
TG2
0°
I
1
I
3
I
2
I
4
90°
OPEN
180°
U1
LTC1629
BUCK: 2.5V/15A
BUCK: 2.5V/15A
PLLIN
TG1
TG2
90°
90°
270°
U2
LTC1628-SYNC
BUCK: 1.5V/15A
2.5V
O
/30A
C
IN
I
IN
12V
IN
*INPUT RIPPLE CURRENT CANCELLATION
INCREASES THE RIPPLE FREQUENCY AND
REDUCES THE RMS INPUT RIPPLE CURRENT
THUS, SAVING INPUT CAPACITORS
I
IN
*
1.5V
O
/15A
1.8V
O
/15A
1628 F14
BUCK: 1.8V/15A
I
1
I
2
I
3
I
4
PART NUMBER DESCRIPTION COMMENTS
LTC1735 High Efficiency Synchronous Step-Down Output Fault Protection, 16-Pin SSOP
Switching Regulator
LTC1778/LTC1778-1 No R
SENSE
Current Mode Synchronous Step-Down Up to 97% Efficiency, 4V ≤ V
IN
≤ 36V, 0.8V ≤ V
OUT
≤ (0.9)(V
IN
),
Controllers I
OUT
Up to 20A
LT1976
LTC3708 Dual, 2-Phase, DC/DC Controller with Output Tracking Current Mode, No R
SENSE
, Up/Down Tracking, Synchronizable
LTC3727/LTC3727A-1 Dual, 2-Phase, DC/DC Controller for High V
OUT
LTC3728 Dual, 550kHz, 2-Phase Synchronous Step-Down Dual 180° Phased Controllers, V
IN
3.5V to 35V, 99% Duty Cycle,
Controller 5 × 5 QFN, SSOP-28
LTC3729 20A to 200A, 550kHz PolyPhase Synchronous Controller Expandable from 2-Phase to 12-Phase, Uses All Surface Mount
Components, V
IN
Up to 36V
LTC3731 3- to 12-Phase Step-Down Synchronous Controller 60A to 240A Output Current, 0.6V ≤ V
OUT
≤ 6V, 4.5V ≤ V
IN
≤ 32V
LTC3827-1 Low I
Q
2-Phase Duel Synchronous Controller 0.8V ≤ V
OUT
≤ 10V; I
Q
= 80µA, 4µ ≤ V
IN
≤ 36V
LTM4600 10A DC/DC µModule Onboard: Inductor, MOSFET, Complete Circuit; 4.5V ≤ V
IN
≤ 28V;
0.6V ≤ V
OUT
≤ 5V; 15mm × 15mm × 2.8mm LGA Package
No R
SENSE
and PolyPhase are trademarks of Linear Technology Corporation.