LTC3809-1_15 Datasheet, PDF (24/24 Pages) Linear Technology – No RSENSE, Low Input Voltage, Synchronous DC/DC Controller with Output Tracking

LTC3809-1
RELATED PARTS
PART NUMBER
LTC1628/LTC3728
DESCRIPTION
COMMENTS
Dual High Efficiency, 2-Phase Synchronous Step Down Controllers Constant Frequency, Standby, 5V and 3.3V LDOs, V_IN to 36V,
LTC1735
LTC1773
High Efficiency Synchronous Step-Down Controller
Synchronous Step-Down Controller
Burst Mode Operation, 16-Pin Narrow SSOP, Fault Protection,
3.5V ≤ V_IN ≤ 36V
2.65V ≤ V_IN ≤ 8.5V, I_OUT Up to 4A, 10-Lead MSOP
LTC1778
LTC1872
No R_SENSE, Synchronous Step-Down Controller
Constant Frequency Current Mode Step-Up Controller
Current Mode Operation Without Sense Resistor,
Fast Transient Response, 4V ≤ V_IN ≤ 36V
2.5V ≤ V_IN ≤ 9.8V, SOT-23 Package, 550kHz
LTC3411
LTC3412
LTC3416
LTC3418
LTC3701
1.25A (I_OUT), 4MHz, Synchronous Step-Down DC/DC Converter
2.5A (I_OUT), 4MHz, Synchronous Step-Down DC/DC Converter
4A, 4MHz, Monolithic Synchronous Step-Down Regulator
8A, 4MHz, Monolithic Synchronous Regulator
2-Phase, Low Input Voltage Dual Step-Down DC/DC Controller
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT = 0.8V, I_Q = 60μA,
I_SD = <1μA, MS Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT = 0.8V, I_Q = 60μA,
I_SD = <1μA, TSSOP-16E Package
Tracking Input to Provide Easy Supply Sequencing,
2.25V ≤ V_IN ≤ 5.5V, 20-Lead TSSOP Package
Tracking Input to Provide Easy Supply Sequencing,
2.25V ≤ V_IN ≤ 5.5V, QFN Package
2.5V ≤ V_IN ≤ 9.8V, 550kHz, PGOOD, PLL, 16-Lead SSOP
LTC3708
2-Phase, No R_SENSE, Dual Synchronous Controller with
Output Tracking
Constant On-Time Dual Controller, V_IN Up to 36V, Very Low
Duty Cycle Operation, 5mm × 5mm QFN Package
LTC3736/LTC3736-2 2-Phase, No R_SENSE, Dual Synchronous Controller with
Output Tracking
2.75V ≤ V_IN ≤ 9.8V, 0.6V ≤ V_OUT ≤ V_IN, 4mm × 4mm QFN
LTC3736-1
LTC3737
LTC3772
Low EMI, 2-Phase, No R_SENSE, Dual Synchronous Controller with Integrated Spread Spectrum for 20dB Lower “Noise,”
Output Tracking
2.75V ≤ V_IN ≤ 9.8V
2-Phase, No R_SENSE, Dual DC/DC Controller with Output Tracking 2.75V ≤ V_IN ≤ 9.8V, 0.6V ≤ V_OUT ≤ V_IN, 4mm × 4mm QFN
Micropower, No R_SENSE, Constant Frequency Step-Down Controller 40μA No-Load IQ, Non-Synchronous, 2.75V ≤ V_IN ≤ 9.8V,
550kHz, 3mm × 2mm DFN or 8-Lead TSOT-23 Packages.
LTC3776
Dual, 2-Phase, No R_SENSE, Synchronous Controller for DDR/QDR
Memory Termination
Provides V_DDQ and V_TT with One IC, 2.75V ≤ V_IN ≤ 9.8V,
Adjustable Constant Frequency with PLL Up to 850kHz,
Spread Spectrum Operation, 4mm × 4mm QFN and 24-Lead
SSOP Packages
LTC3808
No R_SENSE, Low EMI, Synchronous Controller with Output Tracking 2.75V ≤ V_IN ≤ 9.8V, 4mm × 3mm DFN, Spread Spectrum for
20dB Lower Peak Noise
LTC3809
No R_SENSE, Low EMI, Synchronous DC/DC Controller
2.75V ≤ V_IN ≤ 9.8V, 3mm × 3mm DFN and 10-Lead MSOPE
Packages, Spread Spectrum for 20dB Lower Peak Noise
PolyPhase is a trademark of Linear Technology Corporation.
24 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
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LT 1108 REV C • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2005