LTC3727A-1 Datasheet, PDF (32/32 Pages) Linear Technology – High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators

LTC3727A-1
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC1438/LTC1439 Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulators POR, Auxiliary Regulator
LTC1438-ADJ
Dual Synchronous Controller with Auxiliary Regulator
POR, External Feedback Divider
LTC1538-AUX
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulator Auxiliary Regulator, 5V Standby
LTC1539
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulator 5V Standby, POR, Low-Battery, Aux Regulator
LTC1530
High Power Step-Down Synchronous DC/DC Controller in SO-8
High Efficiency 5V to 3.3V Conversion at Up to 15A
LTC1625/LTC1775
LTC1629/
LTC1629-PG
No R_SENSE^TM Current Mode Synchronous Step-Down Controllers
20A to 200A PolyPhase^® Synchronous Controllers
97% Efficiency, No Sense Resistor, 16-Pin SSOP
Expandable from 2-Phase to 12-Phase, Uses All
Surface Mount Components, No Heat Sink
LTC1702
LTC1703
LTC1708-PG
LT1709/
LT1709-8
LTC1735
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
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
550kHz, No Sense Resistor
Mobile Pentium^® III Processors, 550kHz,
V_IN ≤ 7V
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
LTC1876
High Efficiency Synchronous Controller with 5-Bit Mobile VID Control
Triple Output DC/DC Synchronous Controller
Output Fault Protection, 24-Pin SSOP,
3.5V ≤ V_IN ≤ 36V
Dual, 2-Phase Step-Down and Step-Up DC/DC
Converter, 2.6V ≤ V_IN ≤ 36V, Fixed Frequency
150kHz to 300kHz
LTC1778
LTC1929/
LTC1929-PG
LTC3728
No R_SENSE Wide Input Range Synchronous Step-Down Controller
2-Phase Synchronous Controllers
2-Phase 550kHz, Dual Synchronous Step-Down Controller
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
QFN and SSOP Packages, High Frequency for
Smaller L and C
LTC3727/
LTC3727-1
2-Phase Synchronous Controller
Dual, 2-Phase Step-Down DC/DC Converter for
High Output Applications
LTC3731
3-Phase, 600kHz Synchronous Step-Down Controllers
0.6V ≤ V_OUT ≤ 6V, 4.5V ≤ V_IN ≤ 32V, I_OUT ≤ 60A,
Integrated MOSFET Drivers
PolyPhase is a registered trademark of Linear Technology Corporation. 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] ^● FAX: [phone] ^● www.linear.com
3727a1f
LT 1205 • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2005