ltc3851-1 Linear Technology Corporation, ltc3851-1 Datasheet - Page 28

• Manufacturer Part Number: ltc3851-1
• Description: Synchronous Step-down Switching Regulator Controller
• Manufacturer: Linear Technology Corporation

LTC3851-1
RELATED PARTS
28
PART NUMBER
LTC1625/LTC1775
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LT
LTC3727A-1
LTC3728
LTC3729L-6
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LTC3773
LT3800
LTC3810
LTC3811
LTC3824
LTC3826/LTC3826-1 Low I
LTC3834/LTC3834-1 Low I
LTC3844
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LTC3850/LTC3850-1
LTC3850-2
LTC3853
LTM
LTM4601A
LTM8020
LTM8021
LTM8022/LTM8023
PolyPhase is a registered trademark of Linear Technology Corporation. No R
®
3724
®
4600
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
No R
Controllers
High Effi ciency Synchronous Step-Down Switching Regulator
No R
Controller
Low I
Controller
Dual, 2-Phase Synchronous Controller
2-Phase 550kHz, Dual Synchronous Step-Down Controller
20A to 200A PolyPhase
3-Phase, 600kHz Synchronous Step-Down Controller
Triple Output DC/DC Synchronous Controller
Low I
100V Current Mode Nonisolated Switching Regulator
Controller
Dual, PolyPhase Synchronous Step-Down Controller,
20A to 200A
Low I
Low I
Programmable Operating Frequency
Low I
Dual, 2-Phase Synchronous Step-Down Controllers
Triple Output, Mulitphase Synchronous Step-Down Controller
10A Complete Switch Mode Power Supply
12A Complete Switch Mode Power Supply
High V
High V
36V
IN
●
SENSE
SENSE
Q
Q
Q
Q
Q
Q
Q
, 1A and 2A DC/DC μModule
FAX: [phone]
IN
IN
High Voltage Current Mode Switching Regulator
High Voltage Synchronous Regulator Controller
High Voltage 100% Duty Cycle Step-Down Controller
Dual Synchronous Controllers
Synchronous Step-Down Controllers
High Voltage Current Mode Controller with
Synchronous Step-Down Controller
0.2A DC/DC Step-Down μModule
0.5A DC/DC Step-Down μModule
TM
Wide Input Range Synchronous Step-Down
Current Mode Synchronous Step-Down
®
Synchronous Controller
●
www.linear.com
SENSE
and UltraFast are trademarks of Linear Technology Corporation.
COMMENTS
97% Effi ciency, No Sense Resistor, 16-Pin SSOP
Output Fault Protection, 16-Pin SSOP
Up to 97% Effi ciency, 4V ≤ V
0.8V ≤ V
V
Onboard Bias Regulator, Burst Mode Operation, 200kHz Operation
Very Low Dropout, V
QFN and SSOP Packages, High Frequency for Smaller L and C
Expandable from 2-Phase to 12-Phase, Uses All Surface Mount
Components, No Heat Sink
0.6V ≤ V
MOSFET Drivers
3-Phase Step-Down DC/DC Controller, 3.3V ≤ V
Frequency 160kHz to 700kHz
V
100μA I
6.2V ≤ V
Synchronizable
Differential Remote Sense Amplifi er, R
4V ≤ V
MSOP-10 Package
4V ≤ V
Single Channel LTC3826/LTC3826-1
V
Operation, 120μA I
4V ≤ V
R
R
92% Effi ciency, V
Control, UltraFast™ Transient Response
92% Effi ciency, V
Control, UltraFast Transient Response
4V ≤ V
LGA Package
3V ≤ V
LGA Package
Pin Compatible, 4.5V ≤ V
LGA Package
IN
IN
IN
SENSE
SENSE
up to 60V, I
up to 60V, I
up to 60V, I
IN
IN
IN
IN
IN
Q
or DCR Current Sensing, Tracking and Synchronizable
or DCR Current Sensing, Tracking and Synchronizable
OUT
OUT
IN
, Burst Mode Operation, 16-Lead TSSOP FE Package
≤ 60V, 0.8V ≤ V
≤ 36V, 0.8V ≤ V
≤ 60V, 1.23V ≤ V
≤ 36V, 1.25V ≤ V
≤ 36V, 0.8V ≤ V
≤ 100, 0.8V ≤ V
≤ (0.9)(V
≤ 6V, 4.5V ≤ V
OUT
OUT
OUT
IN
IN
Q
≤ 5A, 16-Lead TSSOP FE Package, 100μA I
≤ 20A, Current Mode, Onboard Bias Regulator,
≤ 5A, Onboard Bias Regulator, Burst Mode
: 4.5V to 28V, V
: 4.5V to 28V, V
, Sync Capability, 16-Lead TSSOP FE Package
OUT
IN
), I
OUT
OUT
OUT
≤ 14V
IN
OUT
OUT
OUT
IN
OUT
≤ 36V, 9mm × 11.25mm × 2.8mm
≤ V
≤ 10V, 30μA Quiescent Current
≤ 5V, 6.25mm × 11.25mm × 2.8mm
IN
≤ 32V, I
© LINEAR TECHNOLOGY CORPORATION 2008
≤ 36V, 120μA Quiescent Current
≤ 5V, 6.25mm × 6.25mm × 2.3mm
Up to 20A
≤ 0.9V
≤ 36V,
IN
, 40μA Quiescent Current,
OUT
OUT
OUT
IN
SENSE
= 0.6V, True Current Mode
= 0.6V, True Current Mode
, No R
≤ 60A, Integrated
or DCR Current Sense
SENSE
LT 1108 • PRINTED IN USA
IN
≤ 36V, Fixed
, Tracking and
Q
38511f
,