LTC3851-1_15 Datasheet, PDF (28/28 Pages) Linear Technology – Synchronous Step-Down Switching Regulator Controller

LTC3851-1
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC1625/LTC1775 No R_SENSE^TM Current Mode Synchronous Step-Down
Controllers
97% Efficiency, No Sense Resistor, 16-Pin SSOP
LTC1735
High Efficiency Synchronous Step-Down Switching Regulator Output Fault Protection, 16-Pin SSOP
LTC1778
LT^®3724
No R_SENSE Wide Input Range Synchronous Step-Down
Controller
Low I_Q High Voltage Current Mode Switching Regulator
Controller
Up to 97% Efficiency, 4V ≤ V_IN ≤ 36V,
0.8V ≤ V_OUT ≤ (0.9)(V_IN), I_OUT Up to 20A
V_IN up to 60V, I_OUT ≤ 5A, 16-Lead TSSOP FE Package, 100μA I_Q,
Onboard Bias Regulator, Burst Mode Operation, 200kHz Operation
LTC3727A-1
LTC3728
Dual, 2-Phase Synchronous Controller
2-Phase 550kHz, Dual Synchronous Step-Down Controller
Very Low Dropout, V_OUT ≤ 14V
QFN and SSOP Packages, High Frequency for Smaller L and C
LTC3729L-6
20A to 200A PolyPhase^® Synchronous Controller
Expandable from 2-Phase to 12-Phase, Uses All Surface Mount
Components, No Heat Sink
LTC3731
3-Phase, 600kHz Synchronous Step-Down Controller
0.6V ≤ V_OUT ≤ 6V, 4.5V ≤ V_IN ≤ 32V, I_OUT ≤ 60A, Integrated
MOSFET Drivers
LTC3773
Triple Output DC/DC Synchronous Controller
3-Phase Step-Down DC/DC Controller, 3.3V ≤ V_IN ≤ 36V, Fixed
Frequency 160kHz to 700kHz
LT3800
LTC3810
Low I_Q High Voltage Synchronous Regulator Controller
100V Current Mode Nonisolated Switching Regulator
Controller
V_IN up to 60V, I_OUT ≤ 20A, Current Mode, Onboard Bias Regulator,
100μA I_Q, Burst Mode Operation, 16-Lead TSSOP FE Package
6.2V ≤ V_IN ≤ 100, 0.8V ≤ V_OUT ≤ 0.9V_IN, No R_SENSE, Tracking and
Synchronizable
LTC3811
Dual, PolyPhase Synchronous Step-Down Controller,
20A to 200A
Differential Remote Sense Amplifier, R_SENSE or DCR Current Sense
LTC3824
Low I_Q High Voltage 100% Duty Cycle Step-Down Controller 4V ≤ V_IN ≤ 60V, 0.8V ≤ V_OUT ≤ V_IN, 40μA Quiescent Current,
MSOP-10 Package
LTC3826/LTC3826-1
LTC3834/LTC3834-1
LTC3844
Low I_Q Dual Synchronous Controllers
Low I_Q Synchronous Step-Down Controllers
Low I_Q High Voltage Current Mode Controller with
Programmable Operating Frequency
LTC3845
Low I_Q Synchronous Step-Down Controller
LTC3850/LTC3850-1 Dual, 2-Phase Synchronous Step-Down Controllers
LTC3850-2
4V ≤ V_IN ≤ 36V, 0.8V ≤ V_OUT ≤ 10V, 30μA Quiescent Current
Single Channel LTC3826/LTC3826-1
V_IN up to 60V, I_OUT ≤ 5A, Onboard Bias Regulator, Burst Mode
Operation, 120μA I_Q, Sync Capability, 16-Lead TSSOP FE Package
4V ≤ V_IN ≤ 60V, 1.23V ≤ V_OUT ≤ 36V, 120μA Quiescent Current
R_SENSE or DCR Current Sensing, Tracking and Synchronizable
LTC3853
LTM^®4600
Triple Output, Mulitphase Synchronous Step-Down Controller
10A Complete Switch Mode Power Supply
R_SENSE or DCR Current Sensing, Tracking and Synchronizable
92% Efficiency, V_IN: 4.5V to 28V, V_OUT = 0.6V, True Current Mode
Control, UltraFast™ Transient Response
LTM4601A
12A Complete Switch Mode Power Supply
92% Efficiency, V_IN: 4.5V to 28V, V_OUT = 0.6V, True Current Mode
Control, UltraFast Transient Response
LTM8020
High V_IN 0.2A DC/DC Step-Down μModule
4V ≤ V_IN ≤ 36V, 1.25V ≤ V_OUT ≤ 5V, 6.25mm × 6.25mm × 2.3mm
LGA Package
LTM8021
High V_IN 0.5A DC/DC Step-Down μModule
3V ≤ V_IN ≤ 36V, 0.8V ≤ V_OUT ≤ 5V, 6.25mm × 11.25mm × 2.8mm
LGA Package
LTM8022/LTM8023 36V_IN, 1A and 2A DC/DC μModule
Pin Compatible, 4.5V ≤ V_IN ≤ 36V, 9mm × 11.25mm × 2.8mm
LGA Package
PolyPhase is a registered trademark of Linear Technology Corporation. No R_SENSE and UltraFast are trademarks of Linear Technology Corporation.
28 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
38511fa
LT 0409 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2008