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LTC3868-1 Datasheet, PDF (38/38 Pages) Linear Technology – Low IQ, Dual 2-Phase Synchronous Step-Down Controller | |||
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LTC3868-1
Related Parts
PART NUMBER
LTC3857/LTC3857-1
LTC3858/LTC3858-1
LTC3834/LTC3834-1
LTC3835/LTC3835-1
LT3845
LT3800
LTC3824
LTC3850/LTC3850-1
LTC3850-2
LTC3855
LTC3853
LTC3854
LTC3775
LTC3851A/
LTC3851A-1
LTC3878/LTC3879
DESCRIPTION
COMMENTS
Low IQ, Dual Output 2-Phase Synchronous Step-Down
DC/DC Controllers with 99% Duty Cycle
Low IQ, Dual Output 2-Phase Synchronous Step-Down
DC/DC Controllers with 99% Duty Cycle
Low IQ, Synchronous Step-Down DC/DC Controllers
Low IQ, Synchronous Step-Down DC/DC Controllers
Low IQ, High Voltage Synchronous Step-Down
DC/DC Controller
Low IQ, High Voltage Synchronous Step-Down
DC/DC Controller
Low IQ, High Voltage DC/DC Controller, 100% Duty Cycle
Dual 2-Phase, High Efficiency Synchronous Step-Down
DC/DC Controllers, RSENSE or DCR Current Sensing and
Tracking
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ⤠VIN ⤠38V,0.8V ⤠VOUT ⤠24V, IQ = 50µA,
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ⤠VIN ⤠24V,0.8V ⤠VOUT ⤠14V, IQ = 170µA,
Phase-Lockable Fixed Operating Frequency 140kHz to 650kHz,
4V ⤠VIN ⤠36V,0.8V ⤠VOUT ⤠10V, IQ = 30µA,
Phase-Lockable Fixed Operating Frequency 140kHz to 650kHz,
4V ⤠VIN ⤠36V,0.8V ⤠VOUT ⤠10V, IQ = 80µA,
Adjustable Fixed Operating Frequency 100kHz to 500kHz,
4V ⤠VIN ⤠60V, 1.23V ⤠VOUT ⤠36V, IQ = 120µA, TSSOP-16
Fixed 200kHz Operating Frequency, 4V ⤠VIN ⤠60V,
1.23V ⤠VOUT ⤠36V, IQ = 100µA, TSSOP-16
Selectable Fixed 200kHz to 600kHz Operating Frequency,
4V ⤠VIN ⤠60V, 0.8V ⤠VOUT ⤠VIN, IQ = 40µA, MSOP-10E
Phase-Lockable Fixed Operating Frequency 250kHz to 780kHz,
4V ⤠VIN ⤠30V, 0.8V ⤠VOUT ⤠5.25V
Dual, Multiphase, Synchronous DC/DC Step-Down
Controller with Diffamp and DCR Temperature
Compensation
Phase-Lockable Fixed Frequency 250kHz to 770kHz,
4.5V ⤠VIN ⤠38V, 0.8V ⤠VOUT ⤠12.5V
Triple Output, Multiphase Synchronous Step-Down DC/DC
Controller, RSENSE or DCR Current Sensing and Tracking
Small Footprint Wide VIN Range Synchronous Step-Down
DC/DC Controller
High Frequency Synchronous Voltage Mode Step-Down
DC/DC Controller
No RSENSE⢠Wide VIN Range Synchronous Step-Down
DC/DC Controllers
Phase-Lockable Fixed Operating Frequency 250kHz to 750kHz,
4V ⤠VIN ⤠24V, VOUT Up to 13.5V
Fixed 400kHz Operating Frequency, 4.5V ⤠VIN ⤠38V,
0.8V ⤠VOUT ⤠5.25V, 2mm à 3mm QFN-12, MSOP-12
Fast Transient Response, tON(MIN) = 30ns, 4V ⤠VIN ⤠38V,
0.6V ⤠VOUT ⤠0.8VIN, MSOP-16E, 3mm à 3mm QFN-16
Phase-Lockable Fixed Operating Frequency 250kHz to 750kHz,
4V ⤠VIN ⤠38V, 0.8V ⤠VOUT ⤠5.25V, MSOP-16E, 3mm à 3mm
QFN-16, SSOP-16
No RSENSE Constant On-Time Synchronous Step-Down
DC/DC Controllers
Very Fast Transient Response, tON(MIN) = 43ns, 4V ⤠VIN ⤠38V,
VOUT Up 90% of VIN, MSOP-16E, 3mm à 3mm QFN-16, SSOP-16
38 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 â FAX: (408) 434-0507 â www.linear.com
38681fb
LT 0110 REV B ⢠PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2009
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