LTC3831_15 Datasheet, PDF (20/20 Pages) Linear Technology – High Power Synchronous Switching Regulator Controller for DDR Memory Termination

LTC3831
RELATED PARTS
PART NUMBER DESCRIPTION
COMMENTS
LTC1530
LTC1628 Family
LTC1702
LTC1703
High Power Synchronous Switching Regulator Controller
SO-8 with Current Limit. No R_SENSE™ required
Dual High Efficiency 2-Phase Synchronous Step-Down Controllers Constant Frequency, Standby 5V and 3.3V LDOs, 3.5 ≤ V_IN ≤ 36V
Dual High Efficiency 2-Phase Synchronous Step-Down Controller 550kHz, 25MHz GBW Voltage Mode, V_IN ≤ 7V, No R_SENSE
Dual 550kHz Synchronous 2-Phase Switching Regulator
Controller with Mobile VID
LTC1702 with Mobile VID for Portable Systems
LTC1705
Dual 550kHz Synchronous 2-Phase Switching Regulator
Controller with 5-Bit VID Plus LDO
Provides Core, I/O and CLK Supplies for Portable Systems
LTC1709 Family 2-Phase, 5-Bit Desktop VID Synchronous Step-Down Controllers Current Mode, V_IN to 36V, I_OUT Up to 42A, Various VID Tables
LTC1736
Synchronous Step-Down Controller with 5-Bit Mobile VID control Fault Protection, Power Good, 3.5V to 36V Input, Current Mode
LTC1753
5-Bit Desktop VID Prorammable Synchronous
Switching Regulator
1.3V to 3.5V Programmable Output Using Internal 5-Bit DAC
LTC1778
LTC1873
Wide Operating Range/Step-Down Controller, No R_SENSE
Dual Synchronous Switching Regulator with 5-Bit Desktop VID
V_IN Up to 36V, Current Mode, Power Good
1.3V to 3.5V Programmable Core Output Plus I/O Output
LTC1929
LTC3413
LTC3713
2-Phase, Synchronous High Efficiency Converter with Mobile VID
3A, Monolithic Synchronous Regulator for DDR/QDR
Memory Termination
Low Input Voltage, High Power, No R_SENSE, Step-Down
Synchronous Controller
Current Mode Ensures Accurate Current Sensing V_IN Up to 36V,
I_OUT Up to 40A
Low R_DS(ON) Internal Switch: 85mΩ, ±3A Output Current
(Sink and Source), V_OUT = V_REF/2
Minimum V_IN: 1.5V, Uses Standard Logic-Level N-Channel
MOSFETs
LTC3778
LTC3717
Wide Operating Range, No R_SENSE, Step-Down Controller
Wide V_IN Step-Down Controller for DDR Memory Termination
V_IN Up to 36V, Current Mode, Power Good, Stable with
Ceramic C_OUT
Current Mode Operation, V_OUT = 1/2 V_IN, V_OUT (V_TT)
Tracks V_IN (V_DDQ), No R_SENSE, Symmetrical Sink and Source
Output Current Limit
LTC3718
LTC3832
Bus Termination Supply for Low Voltage V_IN
High Power Synchronous Switching Regulator Controller
1.5V ≤ V_IN, Generates 5V Gate Drive for Standard N-Ch MOSFETs,
2A ≤ I_OUT ≤ 25A
V_OUT as low as 0.6V
No R_SENSE is a trademark of Linear Technology Corporation.
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3831fb
LT 0908 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2001