Analog Devices LT3748

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Topology	Flyback Converter
IC revision	A

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Products

Order Code	Datasheet	Downloads	Status	Product series	V_IN	V_Out1 (V)	I_Out1 (A)	V_aux (V)	L (µH)	n	I_SAT (A)	L_S (µH)	V_T (V (AC))	Size	IC Reference
750311564	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311564 (rev1).igs \| 2.2 MB STP 750311564 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	10 - 40 V (DC)	5	3	8	9.07	3:1:1.75	8	0.25	1500	EP13	LT3575 & LT3748
750311624	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311624 (rev1).igs \| 2.2 MB STP 750311624 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	10 - 40 V (DC)	15	1	8	9	1.5:1:0.5	8	0.25	1500	EP13	LT3575 & LT3748
750311599	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311599 (rev1).igs \| 2.6 MB STP 750311599 (rev1).stp \| 735.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	20 - 48 V (DC)	15	2	10	8	1.5:1:0.67	12	1	1500	EFD20	LT3748
750311604	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311604 (rev1).igs \| 2.6 MB STP 750311604 (rev1).stp \| 735.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	20 - 48 V (DC)	24	1.3	10	8	1:1:0.42	9.5	0.4	1500	EFD20	LT3748
750311591	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP Download_STP_070-4476_0178_clip (rev1).STEP \| 1.5 MB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	20 - 48 V (DC)	15	3	10	8	1.5:1:0.67	20	0.4	1500	EFD25	LT3748
750311590	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP Download_STP_070-4476_0178_clip (rev1).STEP \| 1.5 MB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	20 - 48 V (DC)	12	3.8	10	8	2:1:1	18	0.4	1500	EFD25	LT3748
750311592	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP Download_STP_070-4476_0178_clip (rev1).STEP \| 1.5 MB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	20 - 48 V (DC)	24	1.9	10	8	1:1:0.44	18	0.4	1500	EFD25	LT3748
750311607	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311607 (rev1).igs \| 2.6 MB STP 750311607 (rev1).stp \| 735.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	30 - 75 V (DC)	12	2.5	10	14	2.5:1:0.83	9.5	0.5	1500	EFD20	LT3748
750311600	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311600 (rev1).igs \| 2.6 MB STP 750311600 (rev1).stp \| 735.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	30 - 75 V (DC)	15	2	10	12	2:1:0.67	11	0.4	1500	EFD20	LT3748
750311608	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311608 (rev1).igs \| 2.6 MB STP 750311608 (rev1).stp \| 735.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	30 - 75 V (DC)	24	1.3	10	12	1.5:1:0.5	9	1	1500	EFD20	LT3748
750311595	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP Download_STP_070-4476_0178_clip (rev1).STEP \| 1.5 MB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	30 - 75 V (DC)	15	3	10	12	2:1:0.8	16	0.4	1500	EFD25	LT3748
750311594	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP Download_STP_070-4476_0178_clip (rev1).STEP \| 1.5 MB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	30 - 75 V (DC)	12	3.8	10	15	2.33:1:0.83	18	0.55	1500	EFD25	LT3748
750311596	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 070-4476 (rev1).IGS \| 3.3 MB STP Download_STP_070-4476_0178_clip (rev1).STEP \| 1.5 MB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	30 - 75 V (DC)	24	1.9	10	12	1.5:1:0.5	18	0.4	1500	EFD25	LT3748
750311424	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311424 (rev1).igs \| 2.2 MB STP 750311424 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	36 V (DC)	12	1	8	100	3:1:0.667	2.4	1.5	1500	EP13	LT3748
750311456	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311456 (rev1).igs \| 2.2 MB STP 750311456 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	36 V (DC)	12	1	8	100	3:1:0.667	2.4	1.5	2500	EP13	LT3748
750311458	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311458 (rev1).igs \| 2.2 MB STP 750311458 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	36 V (DC)	3.3	4	8	15	3:1:2.5	5	0.3	2500	EP13	LT3575 & LT3748
750311423	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311423 (rev1).igs \| 2.2 MB STP 750311423 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	36 V (DC)	5	4	10	50	4:1:2	3.85	1.2	1500	EP13	LT3575 & LT3748
750311457	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311457 (rev1).igs \| 2.2 MB STP 750311457 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	36 V (DC)	5	4	10	50	4:1:2	3.7	1.2	2500	EP13	LT3575 & LT3748
750311689	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311689 (rev1).igs \| 2.2 MB STP 750311689 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	36 V (DC)	5	4	10	50	4:1:2	3.7	1.2	2500	EP13	LT3575 & LT3748
750311439	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-FB (rev23a).IntLib \| 1.3 MB ZUK Download_Cadstar_WE-FB (rev19a).zip \| 27.6 KB CDS Cadence_WE-FB (rev22a).zip \| 5.2 MB EAG Eagle_WE-FB (rev19a).lbr \| 161.7 KB CAD files ZIP IGS 750311439 (rev1).igs \| 2.2 MB STP 750311439 (rev1).stp \| 716.4 KB Electric models ZIP PSP PSpice_WE-FB (rev22b).zip \| 25.7 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748	37 - 57 V (DC)	12	2.1	12	37	2:1:1.1	2.8	0.75	1500	EP13	LT3575 & LT3748

	Order Code	Datasheet	Simulation
	750311564	SPEC
	750311624	SPEC
	750311599	SPEC
	750311604	SPEC
	750311591	SPEC
	750311590	SPEC
	750311592	SPEC
	750311607	SPEC
	750311600	SPEC
	750311608	SPEC
	750311595	SPEC
	750311594	SPEC
	750311596	SPEC
	750311424	SPEC
	750311456	SPEC
	750311458	SPEC
	750311423	SPEC
	750311457	SPEC
	750311689	SPEC
	750311439	SPEC

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	V_IN	V_Out1 (V)	I_Out1 (A)	V_aux (V)	L (µH)	n	I_SAT (A)	L_S (µH)	V_T (V (AC))	Size	IC Reference	Samples

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