Datasheet LTC3834-1 (Analog Devices) - 28
| Manufacturer | Analog Devices |
| Description | 30μA IQ Synchronous Step-Down Controller |
| Pages / Page | 28 / 28 — TYPICAL APPLICATIO. Figure 10. High Efficiency 3.3V, 5A Step-Down … |
| File Format / Size | PDF / 300 Kb |
| Document Language | English |
TYPICAL APPLICATIO. Figure 10. High Efficiency 3.3V, 5A Step-Down Converter. RELATED PARTS PART NUMBER. DESCRIPTION. COMMENTS
Model Line for this Datasheet
Text Version of Document
LTC3834-1
U TYPICAL APPLICATIO
PLLLPF VIN VIN CIN 4V TO 36V 0.01μF RUN TG C 10μF B 0.22μF TRACK/SS BOOST ITH SW L1 560pF LTC3834-1 3.2μH 0.012Ω VOUT DB 3.3V 150pF 54k CMDSH-3 5A SGND INTVCC COUT 68.1k PLLIN/MODE 4.7μF 150μF VFB BG SENSE– 215k SENSE+ PGND 39pF 38341 TA06 M1, M2: Si4840DY L1: CDEP 105-3R2M COUT: SANYO 10TPD150M
Figure 10. High Efficiency 3.3V, 5A Step-Down Converter RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LTC1735 High Efficiency Synchronous Step-Down Switching Regulator Output Fault Protection, 16-Pin SSOP LTC1778/LTC1778-1 No RSENSE Current Mode Synchronous Step-Down Up to 97% Efficiency, 4V V IN 36V, 0.8V V OUT (0.9)(V IN), Controllers IOUT Up to 20A LTC3708 Dual, 2-Phase, DC/DC Controller with Output Tracking Current Mode, No RSENSE, Up/Down Tracking, Synchronizable LTC3727/LTC3727-1 High Efficiency, 2-Phase, Synchronous Step-Down Switching 2-Phase Operation; 4V V IN 36V, 0.8V V OUT 14V, Regulators 99% Duty Cycle, 5mm × 5mm QFN, SSOP-28 LTC3728 Dual, 550kHz, 2-Phase Synchronous Step-Down Dual 180° Phased Controllers, VIN 3.5V to 35V, 99% Duty Cycle, Controller 5mm × 5mm QFN Package, SSOP-28 LTC3729 20A to 200A, 550kHz PolyPhase Synchronous Controller Expandable from 2-Phase to 12-Phase, Uses All Surface Mount Components, VIN Up to 36V LTC3731 3- to 12-Phase Step-Down Synchronous Controller 60A to 240A Output Current, 0.6V V OUT 6V, 4.5V V IN 32V LT3800 High Voltage Synchronous Regulator Controller VIN up to 60V, IOUT 20A, Current Mode, Onboard Bias Regulator, Burst Mode Operation, 16-Lead TSSOP Package LTC3826/LTC3826-1 30μA IQ, Dual, 2-Phase Synchronous Step-Down Controller 2-Phase Operation; 30μA One Channel No Load IQ (50μA Total), 4V V IN 36V, 0.8V V OUT 10V LTC3827/LTC3827-1 Low IQ Dual Synchronous Controllers 2-Phase Operation; 115μA Total No Load IQ, 4V V IN 36V 80μA No Load IQ with One Channel On LTC3835/LTC3835-1 Low IQ Synchronous Step-Down Controller 80μA No Load IQ, 4V V IN 36V, 0.8V V OUT 10V LT3844 High Voltage Current Mode Controller with VIN up to 60V, IOUT 5A Onboard Bias Regulator, Burst Mode Programmable Operating Frequency Operation, Sync Capability, 16-Lead TSSOP Package LTC3845 Low IQ Synchronous Step-Down Controller 4V V IN 60V, 1.23V V OUT 36V, 120μA Quiescent Current LTC3850 Dual, 2-Phase Synchronous Step-Down DC/DC Controller 2-Phase Operation; 4V V IN 24V, 95% Efficiency, No RSENSE Option, IOUT Up to 20A, 4mm × 4mm QFN No RSENSE is a trademark of Linear Technology Corporation. PolyPhase is a registered trademark of Linear Technology Corporation. Pentium is a registered trademark of Intel Corporation. 38341f LT 1107 • PRINTED IN USA 28 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2007
U TYPICAL APPLICATIO
PLLLPF VIN VIN CIN 4V TO 36V 0.01μF RUN TG C 10μF B 0.22μF TRACK/SS BOOST ITH SW L1 560pF LTC3834-1 3.2μH 0.012Ω VOUT DB 3.3V 150pF 54k CMDSH-3 5A SGND INTVCC COUT 68.1k PLLIN/MODE 4.7μF 150μF VFB BG SENSE– 215k SENSE+ PGND 39pF 38341 TA06 M1, M2: Si4840DY L1: CDEP 105-3R2M COUT: SANYO 10TPD150M
Figure 10. High Efficiency 3.3V, 5A Step-Down Converter RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LTC1735 High Efficiency Synchronous Step-Down Switching Regulator Output Fault Protection, 16-Pin SSOP LTC1778/LTC1778-1 No RSENSE Current Mode Synchronous Step-Down Up to 97% Efficiency, 4V V IN 36V, 0.8V V OUT (0.9)(V IN), Controllers IOUT Up to 20A LTC3708 Dual, 2-Phase, DC/DC Controller with Output Tracking Current Mode, No RSENSE, Up/Down Tracking, Synchronizable LTC3727/LTC3727-1 High Efficiency, 2-Phase, Synchronous Step-Down Switching 2-Phase Operation; 4V V IN 36V, 0.8V V OUT 14V, Regulators 99% Duty Cycle, 5mm × 5mm QFN, SSOP-28 LTC3728 Dual, 550kHz, 2-Phase Synchronous Step-Down Dual 180° Phased Controllers, VIN 3.5V to 35V, 99% Duty Cycle, Controller 5mm × 5mm QFN Package, SSOP-28 LTC3729 20A to 200A, 550kHz PolyPhase Synchronous Controller Expandable from 2-Phase to 12-Phase, Uses All Surface Mount Components, VIN Up to 36V LTC3731 3- to 12-Phase Step-Down Synchronous Controller 60A to 240A Output Current, 0.6V V OUT 6V, 4.5V V IN 32V LT3800 High Voltage Synchronous Regulator Controller VIN up to 60V, IOUT 20A, Current Mode, Onboard Bias Regulator, Burst Mode Operation, 16-Lead TSSOP Package LTC3826/LTC3826-1 30μA IQ, Dual, 2-Phase Synchronous Step-Down Controller 2-Phase Operation; 30μA One Channel No Load IQ (50μA Total), 4V V IN 36V, 0.8V V OUT 10V LTC3827/LTC3827-1 Low IQ Dual Synchronous Controllers 2-Phase Operation; 115μA Total No Load IQ, 4V V IN 36V 80μA No Load IQ with One Channel On LTC3835/LTC3835-1 Low IQ Synchronous Step-Down Controller 80μA No Load IQ, 4V V IN 36V, 0.8V V OUT 10V LT3844 High Voltage Current Mode Controller with VIN up to 60V, IOUT 5A Onboard Bias Regulator, Burst Mode Programmable Operating Frequency Operation, Sync Capability, 16-Lead TSSOP Package LTC3845 Low IQ Synchronous Step-Down Controller 4V V IN 60V, 1.23V V OUT 36V, 120μA Quiescent Current LTC3850 Dual, 2-Phase Synchronous Step-Down DC/DC Controller 2-Phase Operation; 4V V IN 24V, 95% Efficiency, No RSENSE Option, IOUT Up to 20A, 4mm × 4mm QFN No RSENSE is a trademark of Linear Technology Corporation. PolyPhase is a registered trademark of Linear Technology Corporation. Pentium is a registered trademark of Intel Corporation. 38341f LT 1107 • PRINTED IN USA 28 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2007
