LTC1708-PG_1 Datasheet, PDF (32/32 Pages) Linear Technology – Dual Adjustable 5-Bit VID High Efficiency, 2-Phase Current Mode Synchronous Buck DC/DC Controller

LTC1708-PG
RELATED PARTS
PART NUMBER
LTC1159
LTC1430
LTC1436A-PLL
LTC1438/LTC1439
LTC1438-ADJ
LTC1538-AUX
LTC1539
LTC1625/LTC1775
LTC1628
LTC1629
DESCRIPTION
High Efficiency Synchronous Step-Down Switching Regulator Controller
High Power Step-Down Synchronous DC/DC Controller in SO-8
High Efficiency Low Noise Synchronous Step-Down Switching Regulator
Dual High Efficiency Low Noise Synchronous Step-Down
Switching Regulators
Dual Synchronous Controller with Auxiliary Regulator
Dual High Efficiency Low Noise Synchronous Step-Down
Switching Regulator
Dual High Efficiency Low Noise Synchronous Step-Down
Switching Regulator
No R_SENSE^TM Current Mode Synchronous Step-Down Controller
Dual Output, 2-Phase Step-Down Synchronous Current Mode Controller
20A to 200A PolyPhase^TM Synchronous Current Mode Controller
LTC1702
LTC1703
No R_SENSE 2-Phase Dual Synchronous Step-Down Controller
No R_SENSE 2-Phase Dual Synchronous Step-Down Controller
with 5-Bit Mobile VID Control
LTC1709
42A High Efficiency Synchronous Current Mode Controller with
5-Bit Desktop VID Control
LTC1735
High Efficiency Synchronous Step-Down Synchronous Current
Mode Controller
LTC1736
High Efficiency Synchronous Current Mode Controller with
5-Bit Mobile VID Control
LTC1778/LTC1778-1 No R_SENSE Current Mode Synchronous Step-Down Controller
LTC1929
Single Output, 2-Phase Synchronous Current Mode Controller
LTC1960
Dual Battery Charger/Selector with SPI Interface
LTC3711
LTC3728
No R_SENSE Current Mode Synchronous Step-Down Controller
with Digital 5-Bit Interface
Dual, 550kHz, 2-Phase Synchronous Step-Down Controller
LTC3729
20A to 200A, 550kHz PolyPhase Synchronous Controller
LTC3732
3-Phase, 5-Bit VID 600kHz Synchronous Buck up to 60A
Adaptive Power, No R_SENSE and PolyPhase are trademarks of Linear Technology Corporation.
COMMENTS
100% DC, Logic Level MOSFETs, V_IN < 40V
High Efficiency 5V to 3.3V Conversion at Up to 15A
Adaptive Power^TM Mode 20-Pin, 24-Pin SSOP
POR, Auxiliary Regulator
POR, External Feedback Divider
Auxiliary Regulator, 5V Standby
5V Standby, POR, Low-Battery, Aux Regulator
97% Efficiency, No Sense Resistor, 16-Pin SSOP
Optimized Solution Cost, 3.5V ≤ V_IN ≤ 36V
Expandable from 2-Phase to 12-Phase, Uses All
Surface Mount Components, No Heat Sink
550kHz, No Sense Resistor, V_IN ≤ 7V
Mobile Pentium III Processors, 550kHz, V_IN ≤ 7V
Server, Workstation All Surface Mount Solution
Output Fault Protection, 16-Pin SSOP
Output Fault Protection, 24-Pin SSOP, Power Good
3.5V ≤ V_IN ≤ 36V
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 Sink
Simultaneous Dual-Battery Discharge Extends Run
Time by 10%. Reduces Charging Time by up to 50%
Up to 97% Efficiency, Ideal for Pentium III Processors,
0.925V ≤ V_OUT ≤ 2V, 4V ≤ V_IN ≤ 36V, I_OUT up to 20A
3.5V ≤ V_IN ≤ 35V, 99% Duty Cycle,
5mm × 5mm QFN, SSOP-28
Expandable from 2-Phase to 12-Phase, Uses all
Surface Mount Components, V_IN up to 36V,
QFN, SSOP-28
VRM 9.0, VID, SSOP-36
32 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
1708f
LT/TP 1102 2k • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2000