LTC3733 Datasheet, PDF (32/32 Pages) Linear Technology – 3-Phase, Buck Controllers for AMD CPUs

LTC3733/LTC3733-1
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC1628
2-Phase, Dual Output Synchronous Step-Down
DC/DC Controllers
Reduces C_IN and C_OUT, Power Good Output Signal, Synchronizable,
3.5V ≤ V_IN ≤ 36V, I_OUT up to 20A, 0.8V ≤ V_OUT ≤ 5V
LTC1629/
LTC1629-PG
LTC1702
20A to 200A PolyPhase Synchronous Controllers
No R_SENSE^TM 2-Phase Dual Synchronous Step-Down
Controller
Expandable from 2-Phase to 12-Phase, Uses All
Surface Mount Components, No Heat Sink, V_IN up to 36V
550kHz, No Sense Resistor
LTC1703
No R_SENSE 2-Phase Dual Synchronous Step-Down
Controller with 5-Bit Mobile VID Control
Mobile Pentium^® III Processors, 550kHz,
V_IN ≤ 7V
LTC1708-PG
LT^®1709/
LT1709-8
LTC1735
2-Phase, Dual Synchronous Controller with Mobile VID
High Efficiency, 2-Phase Synchronous Step-Down
Switching Regulators with 5-Bit VID
High Efficiency Synchronous Step-Down
Switching Regulator
3.5V ≤ V_IN ≤ 36V, VID Sets V_OUT1, PGOOD
1.3V ≤ V_OUT ≤ 3.5V, Current Mode Ensures
Accurate Current Sharing, 3.5V ≤ V_IN ≤ 36V
Output Fault Protection, 16-Pin SSOP
LTC1736
High Efficiency Synchronous Controller with 5-Bit Mobile Output Fault Protection, 24-Pin SSOP,
VID Control
3.5V ≤ V_IN ≤ 36V
LTC1778
LTC1929/
LTC1929-PG
LTC3708
No R_SENSE Current Mode Synchronous Step-Down
Controller
2-Phase Synchronous Controllers
Dual, 2-Phase, No R_SENSE Synchronous Buck with
Output Tracking
Up to 97% Efficiency, 4V ≤ V_IN ≤ 36V, 0.8V ≤ V_OUT ≤ (0.9)(V_IN),
I_OUT up to 20A
Up to 42A, Uses All Surface Mount Components,
No Heat Sinks, 3.5V ≤ V_IN ≤ 36V
Up/Down Output Voltage Tracking, Track Up to 8 Supplies,
Fast Transient Response
LTC3711
LTC3719
No R_SENSE Current Mode Synchronous Step-Down
Controller with Digital 5-Bit Interface
2-Phase, 5-Bit VID Current Mode, High Efficiency
Synchronous Step-Down Controller
Up to 97% Efficiency, Ideal for Pentium III Processors,
0.925V ≤ V_OUT ≤ 2V, 4V ≤ V_IN ≤ 36V, I_OUT up to 20A
AMD Hammer-K8 Processors, Wide V_IN Range: 4V to 36V Operation
LTC3729
LTC3731
LTC3732
20A to 200A, 550kHz PolyPhase Synchronous Controller
3-Phase, 600kHz Synchronous Buck
Switching Regulator Controller
3-Phase, 5-Bit VID, 600kHz Synchronous Buck
Switching Regulator Controller
Expandable from 2-Phase to 12-Phase, Uses all Surface Mount
Components, V_IN up to 36V
Expandable from 3-Phase to 12-Phase, Uses all Surface Mount
Components, V_IN up to 36V
VRM9.0 and VRM9.1 (VID = 1.1V to 1.85V)
No R_SENSE is a trademark of Linear Technology Corporation. Pentium is a registered trademark of Intel Corporation.
32 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
3733f
LT/TP 1203 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2003