LTC3831 LINER [Linear Technology], LTC3831 Datasheet - Page 20

• Manufacturer Part Number: LTC3831
• Description: High Power Synchronous Switching Regulator Controller for DDR Memory Termination
• Manufacturer: LINER [Linear Technology]

LTC3831
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PART NUMBER
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No R
20
SENSE
is a trademark of Linear Technology Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
DESCRIPTION
High Power Synchronous Switching Regulator Controller
Dual High Efficiency 2-Phase Synchronous Step-Down Controller
Dual 550kHz Synchronous 2-Phase Switching Regulator
Controller with Mobile VID
Dual 550kHz Synchronous 2-Phase Switching Regulator
Controller with 5-Bit VID Plus LDO
Synchronous Step-Down Controller with 5-Bit Mobile VID Control
5-Bit Desktop VID Programmable Synchronous
Switching Regulator
Wide Operating Range/Step-Down Controller, No R
Dual Synchronous Switching Regulator with 5-Bit Desktop VID
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
Synchronous Controller
Wide Operating Range, No R
Wide V
Bus termination Supply for Low Votlage V
High Power Synchronous Switching Regulator Controller
IN
Step-Down Controller for DDR Memory Termination
SENSE
www.linear.com
, Step-Down Controller
SENSE
IN
, Step-Down
SENSE
COMMENTS
SO-8 with Current Limit. No R
550kHz, 25MHz GBW Voltage Mode, V
LTC1702 with Mobile VID for Portable Systems
Provides Core, I/O and CLK Supplies for Portable Systems
Current Mode, V
Fault Protection, Power Good, 3.5V to 36V Input, Current Mode
1.3V to 3.5V Programmable Output Using Internal 5-Bit DAC
V
1.3V to 3.5V Programmable Core Output Plus I/O Output
Current Mode Ensures Accurate Current Sensing V
I
Low R
(Sink and Source), V
Minimum V
MOSFETs
V
Ceramic C
Current Mode Operation, V
Tracks V
Output Current Limit
1.5V V
2A I
V
OUT
IN
IN
OUT
Up to 36V, Current Mode, Power Good
Up to 36V, Current Mode, Power Good, Stable with
Up to 40A
as low as 0.6V
OUT
DS(ON)
IN
IN
OUT
, Generates 5V Gate Drive for Standard N-Ch MOSFETs,
(V
IN
25A
Internal Switch: 85m , 3A Output Current
DDQ
: 1.5V, Uses Standard Logic-Level N-Channel
IN
), No R
to 36V, I
OUT
SENSE
= V
OUT
OUT
REF
, Symmetrical Sink and Source
SENSE
= 1/2 V
LINEAR TECHNOLOGY CORPORATION 2001
/2
Up to 42A, Various VID Tables
TM
required
IN
IN
LT/TP 0503 1K • PRINTED IN USA
, V
OUT
7V, No R
(V
TT
IN
)
SENSE
Up to 36V,
IN
36V
3831f