LTC3865 Datasheet, PDF (36/36 Pages) Linear Technology – Dual, 2-Phase Synchronous DC/DC Controller with Pin Selectable Outputs

LTC3865/LTC3865-1
Related Parts
PART NUMBER DESCRIPTION
COMMENTS
LTC3850/LTC3850-1 Dual 2-Phase, High Efficiency Synchronous Step-Down DC/DC Phase-Lockable Fixed Operating Frequency 250kHz to 780kHz,
LTC3850-2
Controllers, R_SENSE or DCR Current Sensing and Tracking
4V ≤ V_IN ≤ 30V, 0.8V ≤ V_OUT ≤ 5.25V
LTC3855
Dual, Multiphase Synchronous Step-Down DC/DC Controller Phase-Lockable Fixed Operating Frequency 250kHz to 770kHz,
with Diffamp and DCR Temperature Compensation
4.5V ≤ V_IN ≤ 38V, 0.8V ≤ V_OUT ≤ 12.5V
LTM^®4619
Dual, 4A DC/DC µModule^® Complete Power Supply
High Efficiency, Compact Size, Fast Transient Response
4.5V ≤ V_IN ≤ 26.5V, 0.8V ≤ V_OUT ≤ 5V, 15mm × 15mm × 2.8mm
LGA
LTC3868/LTC3868-1 Low I_Q, Dual Output 2-Phase Synchronous Step-Down
DC/DC Controller with 99% Duty Cycle
LTC3857/LTC3857-1 Low I_Q, Dual, 2-Phase Synchronous Step-Down Controllers
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ≤ V_IN ≤ 24V, 0.8V ≤ V_OUT ≤ 14V, I_Q = 170µA,
50µA I_Q, 0.8V ≤ V_OUT ≤ 24V, 4V ≤ V_IN ≤ 38V, Output Overcurrent
Foldback Protection
LTC3858/LTC3858-1 Low I_Q, Dual, 2-Phase Synchronous Step-Down Controllers
170µA I_Q, 0.8V ≤ V_OUT ≤ 24V, 4V ≤ V_IN ≤ 38V, Output Overcurrent
Latchoff Protection
LTC3853
LTC3854
LTC3851A
LTC3851A-1
Triple Output, Multiphase Synchronous Step-Down DC/DC
Controller, R_SENSE or DCR Current Sensing and Tracking
Small Footprint Wide V_IN Range Synchronous Step-Down
DC/DC Controller
No R_SENSE™ Wide V_IN Range Synchronous Step-Down
DC/DC Controller
Phase-Lockable Fixed Operating Frequency 250kHz to 750kHz,
4V ≤ V_IN ≤ 24V, V_OUT Up to 13.5V
Fixed 400kHz Operating Frequency 4.5V ≤ V_IN ≤ 38V,
0.8V ≤ V_OUT ≤ 5.25V, 2mm × 3mm QFN-12
Phase-Lockable Fixed Operating Frequency 250kHz to 750kHz,
4V ≤ V_IN ≤ 38V, 0.8V ≤ V_OUT ≤ 5.25V, MSOP-16E,
3mm × 3mm QFN-16, SSOP-16
LTC3775
High Frequency, Synchronous Voltage Mode Step-Down
DC/DC Controller
Synchronizable Fixed Frequency 250kHz to 1MHz, t_ON(MIN) = 30ns,
4V ≤ V_IN ≤ 38V, 0.6V ≤ V_OUT ≤ 0.8V, MSOP-16E,
3mm × 3mm QFN-16
LTC3878
LTC3879
LTM4600HV
LTM4601AHV
LTC3610
LTC3611
No R_SENSE Constant On-Time Synchronous Step-Down
DC/DC Controller
No R_SENSE Constant On-Time Synchronous Step-Down
DC/DC Controller
10A DC/DC µModule Regulator
12A DC/DC µModule Regulator
12A, 1MHz, Monolithic Synchronous Step-Down
DC/DC Converter
10A, 1MHz, Monolithic Synchronous Step-Down
DC/DC Converter
Very Fast Transient Response, t_ON(MIN) = 43ns, 4V ≤ V_IN ≤ 38V,
0.8V ≤ V_OUT ≤ 0.9V_IN, SSOP-16
Very Fast Transient Response, t_ON(MIN) = 43ns, 4V ≤ V_IN ≤ 38V,
0.6V ≤ V_OUT ≤ 0.9V_IN, MSOP-16E, 3mm × 3mm QFN-16
High Efficiency, Compact Size, Fast Transient Response
4.5V ≤ V_IN ≤ 28V, 0.8V ≤ V_OUT ≤ 5V, 15mm × 15mm × 2.8mm LGA
High Efficiency, Compact Size, Fast Transient Response
4.5V ≤ V_IN ≤ 28V, 0.8V ≤ V_OUT ≤ 5V, 15mm × 15mm × 2.8mm LGA
High Efficiency, Adjustable Constant On-Time 4V ≤ V_IN ≤ 24V,
V_OUT(MIN) 0.6V, 9mm × 9mm QFN-64
High Efficiency, Adjustable Constant On-Time 4V ≤ V_IN ≤ 32V,
V_OUT(MIN) 0.6V, 9mm × 9mm QFN-64
36 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3865f
LT 0210 • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2010