Analog Devices LTC7803 | Demoboard DC2834A | Würth Elektronik Reference Design Search

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reference designLTC7803 | Demoboard DC2834A

Overview

Topology	Buck Converter
Input voltage	5-38 V
Output 1	3.3 V / 20 A

Description

Demonstration circuit DC2834A is a DC/DC synchronous step-down converter featuring the LTC®7803 (MSE package), a spread spectrum or constant frequency current mode synchronous step-down controller. The DC2834A generates a 3.3V of output voltage.

Features

Wide input voltage range: from 5V to 38V
High load current, up to 20A
Extremely low quiescent current: 15μA in sleep mode and as low as 1μA at shutdown
Ability to select spread spectrum or fixed frequency
Selectable pulse-skipping, forced continuous operation or low ripple Burst Mode® operation at light loads
Synchronization with external clock
The DC2834A supports RSENSE or inductor DCR cur¬rent sensing (optional).

More information

Products

	Order Code	Datasheet	Simulation	Downloads	Product series	L (µH)	I_SAT (A)	R_{DC max.} (mΩ)	f_res (MHz)	Mount	C	Tol. C	V_R (V (DC))	Size	Operating Temperature	DF (%)	R_ISO	Ceramic Type	L (mm)	W (mm)	Fl (mm)	Pins	Rows	H (mm)	Gender	Type	I_R (A)	Packaging	Samples
	7843320068	SPEC		8 files EDA models: Components ZIP ALT Altium_WE-CHSA (rev22d).IntLib \| 881.5 KB ZUK Cadstar_WE-CHSA (rev21a).zip \| 7.3 KB CDS Cadence_WE-CHSA (rev22a).zip \| 1.5 MB EAG Eagle_WE-CHSA (rev21a).lbr \| 34 KB CAD files ZIP IGS Download_IGS_WE-CHSA-1212 (rev1).igs \| 2.1 MB STP Download_STP_WE-CHSA-1212 (rev1).stp \| 568.2 KB Electric models ZIP PSP PSpice_WE-CHSA (rev22a).zip \| 7.6 KB SCS Spectre_WE-CHSA (rev23a).mod \| 8.1 KB Download all 8 files as zip archive ZIP	WE-CHSA SMT High Current Inductor	0.68	41.4	2.05	88	SMT	–	–	–	1212	-55 °C up to +150 °C	–	–	–	12.2	12.2	–	–	–	11.75	–	–	25.3	–
	885012206020	SPEC		8 files EDA models: Components ZIP ALT Altium_WCAP-CSGP (rev24b).IntLib \| 898 KB ZUK Cadstar_WCAP-CSGP (rev21c).zip \| 46.5 KB CDS Cadence_WCAP-CSGP (rev24b).zip \| 685.2 KB EAG Eagle_WCAP-CSGP (rev24b).lbr \| 1.1 MB CAD files ZIP 3D 1.6x0.8x0.8x0 (rev1).pdf \| 12.3 KB IGS 1.6x0.8x0.8x0 (rev1).igs \| 76.4 KB STP Download_STP_8850122060xx (rev1).stp \| 29.4 KB Electric models ZIP PSP PSpice_WCAP-CSGP (rev22c).zip \| 331.8 KB Download all 8 files as zip archive ZIP	WCAP-CSGP MLCCs 10 V(DC)	–	–	–	–	–	100 nF	±10%	10	0603	-55 °C up to +125 °C	5	5 GΩ	X7R Class II	1.6	0.8	0.4	–	–	0.8	–	–	–	7" Tape & Reel
	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	WR-PHD 2.00 mm Jumper with Test Point	–	–	–	–	–	–	–	–	–	-25 °C up to +105 °C	–	1000 MΩ	–	–	–	–	2	–	–	Jumper	–	3	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 (rev24b).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	WR-PHD 2.00 mm THT Pin Header	–	–	–	–	THT	–	–	–	–	-40 °C up to +105 °C	–	1000 MΩ	–	6	–	–	3	Single	–	Pin Header	Straight	2	Bag
	62000621121	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 (rev24b).lbr \| 5.2 MB CAD files ZIP 3D 62000621121_1 (rev1).pdf \| 41.3 KB IGS 62000621121 (rev1).iges \| 599 KB STP 62000621121 (rev1).stp \| 143.5 KB	WR-PHD 2.00 mm THT Dual Pin Header	–	–	–	–	THT	–	–	–	–	-40 °C up to +105 °C	–	1000 MΩ	–	6	–	–	6	Dual	–	Pin Header	Straight	2	Bag

	Order Code	Datasheet	Simulation
	7843320068	SPEC
	885012206020	SPEC
	60800213421	SPEC	–
	62000311121	SPEC	–
	62000621121	SPEC	–

Samples

	Order Code	Datasheet	Simulation	Downloads	Product series	L (µH)	I_SAT (A)	R_{DC max.} (mΩ)	f_res (MHz)	Mount	C	Tol. C	V_R (V (DC))	Size	Operating Temperature	DF (%)	R_ISO	Ceramic Type	L (mm)	W (mm)	Fl (mm)	Pins	Rows	H (mm)	Gender	Type	I_R (A)	Packaging	Samples