Lumissil Microsystems IS31LT3957A | Demoboard IS31LT3957A SEPIC EVALUATION BOARD | Würth Elektronik Reference Design Search

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reference designIS31LT3957A | Demoboard IS31LT3957A SEPIC EVALUATION BOARD

Overview

Topology	SEPIC Buck-Boost Topology
Input voltage	5-75 V
IC revision	C

Typical applications

Motorcycle headlight
Exit Signs and Emergency Lighting
General high power LED
Architecture lighting

More information

IC product information

Products

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	Winding Style	Number of windings	L₁ (µH)	Z (Ω)	I_R (mA)	R_{DC max.} (Ω)	V_R (V)	L₁ (µH)	L₂ (µH)	I_R (A)	I_{R 2} (A)	I_SAT (A)	R_{DC1 typ} (Ω)	R_{DC2 typ} (Ω)	R_{DC1 max} (Ω)	R_{DC2 max} (Ω)	f_res (MHz)	Type	Samples
	744273501	SPEC		10 files EDA models: Components ZIP ALT WE-SL5_HC (rev22a).IntLib \| 252.5 KB CDS Cadence_WE-SL5_HC (rev18a).zip \| 968.2 KB EAG Eagle_WE-SL5 HC (rev21a).lbr \| 15.1 KB KIC KiCad_WE-SL5HC (rev25a).zip \| 1.7 MB ZUK Cadstar_WE-SL5-HC (rev19a).zip \| 5.3 KB CAD files ZIP 3D 744273xxx_3D (rev1).pdf \| 1.5 MB IGS WE-SL5_HC_744273 (rev1).igs \| 3.7 MB STP WE-SL5_HC_744273 (rev1).stp \| 976.9 KB Electric models ZIP PSP PSpice_WE-SL5HC (rev22a).zip \| 4.4 KB S S-PARAMETER_WE-SL5HC (rev20a).zip \| 486.1 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-SL5 HC SMT Common Mode Line Filter	sectional	2	5	500	5000	0.0055	80	–	–	–	–	–	–	–	–	–	–	–
	744870100	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document		9 files EDA models: Components ZIP ALT WE-DD (rev25a).IntLib \| 1.5 MB CDS Cadence_WE-DD (rev25a).zip \| 23.2 MB EAG Eagle_WE-DD (rev19a).lbr \| 95.4 KB KIC KiCad_WE-DD (rev25a).zip \| 8.6 MB ZUK Download_Cadstar_WE-DD (rev19a).zip \| 13.2 KB CAD files ZIP IGS Download_IGS_WE-DD_1280 (rev1).igs \| 1.8 MB STP Download_STP_WE-DD-1280 (rev1).stp \| 1.8 MB Electric models ZIP PSP PSpice_WE-DD (rev22a).zip \| 20.4 KB S S-Parameter_WE-DD (rev21a).zip \| 8.4 MB Download all 9 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-DD SMT Shielded Coupled Inductor	–	–	–	–	–	–	–	10	10	2.7	2.7	7	0.038	0.038	0.044	0.044	18	Crossed

	Order Code	Datasheet	Simulation
	744273501	SPEC
	744870100	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	Winding Style	Number of windings	L₁ (µH)	Z (Ω)	I_R (mA)	R_{DC max.} (Ω)	V_R (V)	L₁ (µH)	L₂ (µH)	I_R (A)	I_{R 2} (A)	I_SAT (A)	R_{DC1 typ} (Ω)	R_{DC2 typ} (Ω)	R_{DC1 max} (Ω)	R_{DC2 max} (Ω)	f_res (MHz)	Type	Samples

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