LTC3879_15 Datasheet, PDF (28/28 Pages) Linear Technology – Fast, Wide Operating Range No RSENSE Step-Down Controller

LTC3879
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC3608/LTC3609
LTC3610/LTC3611
8A/6A Monolithic Synchronous Step-Down DC/DC Converters Optimized for High Step-Down Ratios, V_IN Up to 18V/32V
12A/10A Monolithic Synchronous Step-Down DC/DC
Converters
Optimized for High Step-Down Ratios, V_IN Up to 24V/32V
LTC3728
2-Phase 550kHz, Dual Synchronous Step-Down Controller QFN and SSOP Packages
LTC3770
No R_SENSE Synchronous Step-Down Controller with Voltage 0.6V ≤ V_OUT ≤ (0.9)V_IN, 4V ≤ V_IN ≤ 36V, I_OUT Up to 20A
Margining, PLL and Tracking
LTC3778
LTC3811
No R_SENSE Constant On-Time Synchronous Step-Down
Controller
Dual, PolyPhase^® Synchronous Step-Down Controller,
20A to 200A
Extremely Fast Transient Response, t_ON(MIN) ≤ 100ns,
4V ≤ V_IN ≤ 36V, 0.8V Reference
Differential Remote Sense Amplifier, R_SENSE or DCR Current Sense
LTC3823
Constant On-Time Synchronous No R_SENSE Step-Down
Controller with Differential Output Sensing
Fast Transient Response, 4.5V ≤ V_IN ≤ 36V, 0.6V ≤ V_OUT ≤ 0.9V_IN,
Tracking and PLL Synchronization
LTC3824
Low I_Q, High Voltage Current Mode Controller, 100% Duty
Cycle, Programmable Operating Frequency
LTC3826/LTC3826-1 Very Low I_Q, Dual, 2-Phase Synchronous Step-Down
Controllers
V_IN Up to 60V, I_OUT ≤ 5A, Onboard Bias Regulator, Burst Mode
Operation, 40μA I_Q, MSOP-10 Package
30μA I_Q, 0.8V ≤ V_OUT ≤ 10V, 4V ≤ V_IN ≤ 36V
LTC3834/LTC3834-1 Very Low I_Q, Synchronous Step-Down Controller
LT3844
Low I_Q, High Voltage Current Mode Controller with
Programmable Operating Frequency
LT3845
Low I_Q, High Voltage Single Output Synchronous Step-Down
DC/DC Controller
30μA I_Q, 0.8V ≤ V_OUT ≤ 10V, 4V ≤ V_IN ≤ 36V
V_IN Up to 60V, I_OUT ≤5V Onboard Bias Regulator, Burst Mode
Operation, 120μA I_Q, Sync Capability, 16-Lead TSSOP Package
1.23V ≤ V_OUT ≤ 36V, 4V ≤ V_IN ≤ 60V, 120μA I_Q
LTC3850/LTC3850-1 Dual 2-Phase, High Efficiency Synchronous Step-Down
LTC3850-2
Controllers
LTC3851/LTC3851-1 No R_SENSE Wide Input Range Step-Down Controllers
R_SENSE or DCR Current Sense, 250kHz to 780kHz Fixed Operating
Frequency, 4V ≤ V_IN ≤ 30V, 0.8V ≤ V_OUT ≤ 5.25V
4V ≤ V_IN ≤ 38V, Very Low Dropout with Tracking, DCR Current
Sense, MSOP-16, SSOP-16, 3mm × 3mm QFN-16
LTC3853
LTC3878
LTM4600HV
Triple Output, Multiphase Synchronous Step-Down Controller
No R_SENSE Constant On-Time Synchronous Step-Down
Controller
10A Complete Switch Mode Power Supply
R_SENSE or DCR Current Sensing, Tracking and Synchronizable
Extremely Fast Transient Response, t_ON(MIN) = 43ns,
4V ≤ V_IN ≤ 38V, 0.8V Reference
92% Efficiency, V_IN: 4.5V to 28V, True Current Mode Control,
Ultrafast™ Transient Response
LTM4601AHV
12A Complete Switch Mode Power Supply
92% Efficiency, V_IN: 4.5V to 28V, True Current Mode Control,
Ultrafast Transient Response
PolyPhase is a registered trademark fo Linear Technology Corporation. No R_SENSE is a trademark of Linear Technology Corporation.
28 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3879f
LT 0309 • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2009