Analog Devices LTC7801 | Demoboard DC2641 | Würth Elektronik Reference Design Search

Overview

Topology	Buck Converter
Input voltage	16-100 V
Switching frequency	75-800 kHz
Output 1	12.24 V / 10 A
IC revision	1

Description

Demonstration circuit 2641A is a single output synchronousbuck converter featuring the LTC7801EUFD in the24-lead QFN package. The input voltage range is from16V to 100V and the output is 12V/10A. The DC2641A isconfigured with a sense resistor for overcurrent protection.Inductor DCR current sensing is optional.The board has a lot of features including an optionalonboard NMOS LDO for DRVCC, a switch-mode powersupply for EXTVCC, jumper selectable 100% duty cycleoperation in dropout, a mode selector pin that allowsthe converter to run in CCM, pulse-skip, adjustable burst clamp or default Burst Mode® operation, a PGOOD outputvoltage monitor and PLLIN for PolyPhase® operation.The LTC7801 data sheet gives a complete descriptionof the part, operation and application information andmust be read in conjunction with this demo manual forDC2641A

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Products

Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (mm)	f (mm)	L (µH)	I_RP,40K (A)	I_SAT,10% (A)	I_SAT,30% (A)	R_{DC max.} (mΩ)	f_res (MHz)	Pins (Value) (pcs)	Rows	H (mm)	Gender	Type	I_R (A)	Packaging
62000211121	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev24c).zip \| 63.9 MB EAG Eagle_WR-PHD (rev24c).lbr \| 5.2 MB CAD files ZIP 3D 3D_62000211121 (rev1).pdf \| 21.6 KB IGS Download_IGES_62000211121 (rev1).iges \| 242.2 KB STP Download_STP_62000211121 (rev1).stp \| 59.5 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD 2.00 mm THT Pin Header	4	–	–	–	–	–	–	–	2	Single	–	Pin Header	Straight	2	Bag
62000311121	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev24c).zip \| 63.9 MB EAG Eagle_WR-PHD (rev24c).lbr \| 5.2 MB CAD files ZIP 3D 3D_62000311121 (rev1).pdf \| 24.7 KB IGS Download_IGES_62000311121 (rev1).iges \| 303.4 KB STP Download_STP_62000311121 (rev1).stp \| 74.1 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD 2.00 mm THT Pin Header	6	–	–	–	–	–	–	–	3	Single	–	Pin Header	Straight	2	Bag
62000821121	SPEC	–	6 files EDA models: Components ZIP ALT Altium_WR-PHD (rev24a).IntLib \| 34.1 MB CDS Cadence_WR-PHD (rev24c).zip \| 63.9 MB EAG Eagle_WR-PHD (rev24c).lbr \| 5.2 MB CAD files ZIP 3D 62000821121_1 (rev1).pdf \| 49.2 KB IGS 62000821121 (rev1).iges \| 777.6 KB STP 62000821121 (rev1).stp \| 185.8 KB	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD 2.00 mm THT Dual Pin Header	8	–	–	–	–	–	–	–	8	Dual	–	Pin Header	Straight	2	Bag
702935000	SPEC	–	3 files CAD files ZIP 3D 3D_702935000 (rev1).pdf \| 48.1 KB IGS Download_IGS_702935000 (rev1).igs \| 216.7 KB STP Download_STP_702935000 (rev1).stp \| 38.4 KB Download all 3 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WA-SNSR Self-Retaining Spacer	12.7	4.8	–	–	–	–	–	–	–	–	–	–	–	–	–
7443633300	SPEC		8 files EDA models: Components ZIP ALT WE-HCF (rev23a).IntLib \| 651 KB ZUK Download_CadStar_WE-HCF (rev20a).zip \| 12.8 KB CDS Cadence_WE-HCF (rev23a).zip \| 10.3 MB EAG Eagle_WE-HCF (rev24a).lbr CAD files ZIP IGS Download_IGS_744363xxxx (rev1).igs \| 1.7 MB STP Download_STP_744363xxxx (rev1).stp \| 658.3 KB Electric models ZIP PSP PSpice_WE-HCF (rev22a).zip \| 11.4 KB SCS Spectre_WE-HCF (rev24a).mod \| 12.4 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCF SMT High Current Inductor	20.8	–	33	13.3	9.5	11	12.54	12	2	–	13.5	–	–	13.3	–
60800213421	SPEC	–	3 files CAD files ZIP 3D 3D_60800213421 (rev1).pdf \| 65.8 KB IGS Downloads_IGES_60800213421 (rev1).iges \| 778 KB STP 60800213421 (rev1).stp \| 286.2 KB Download all 3 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WR-PHD 2.00 mm Jumper with Test Point	–	–	–	–	–	–	–	–	2	–	–	Jumper	–	3	Bag