Analog Devices LTC3374A

Overview

Topology	Buck Converter
Input voltage	2.25-5.5 V
Switching frequency	1000-3000 kHz
Output 1	5.5 V / 1 A
IC revision	A

Description

The LTC®3374A is a multioutput power supply IC consistingof eight synchronous 1A buck converters, all powered fromindependent 2.25V to 5.5V input supplies. An upgradedpin-compatible version of the LTC3374, the LTC3374A,has higher efficiency, improved output voltage accuracyand an added overvoltage (OV) indicator.

Features

8-Channel 1A Independent Step-Down DC/DCsMaster-Slave Configurable for Up to 4A of Output Current with a Single InductorIndependent VIN Supplies for Each DC/DC (2.25V to 5.5V)All DC/DCs Have 0.8V to VIN Output Range±1% VFB Accuracy, for Buck 1 (1A to 4A)±1% PGOOD AccuracyPrecision Enable Pin Thresholds for Autonomous Sequencing1MHz to 3MHz Programmable/Synchronizable Oscillator Frequency (2MHz Default)Die Temperature Monitor OutputThermally Enhanced 38-Lead 5mm × 7mm QFN and TSSOP PackagesPin-Compatible with LTC3374

Typical applications

Industrial/Automotive/Communications
General Purpose Multichannel Power Supplies

More information

Products

Order Code	Datasheet	Simulation	Downloads	Product series	L (µH)	I_RP,40K (A)	I_SAT,30% (A)	R_{DC typ.} (mΩ)	f_res (MHz)	V (V)	Mount	I_SAT (A)	R_{DC max.} (mΩ)	Material	Version	I_SAT,10% (A)	R_DC (mΩ)	Pins	Rows	H (mm)	Gender	Type	I_R (A)	Packaging
744383560033	SPEC		9 files EDA models: Components ZIP ALT WE-MAPI (rev24a).IntLib \| 588 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24a).zip \| 2.4 MB EAG Eagle_WE-MAPI (rev24a).lbr \| 170.6 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-4020_3D (rev1).pdf \| 93.9 KB IGS Download_IGS_WE-MAPI_4020 (rev1).igs \| 337.9 KB STP Download_STP_WE-MAPI_4020 (rev1).stp \| 325.7 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev23a).mod \| 31.1 KB Download all 9 files as zip archive ZIP	WE-MAPI SMT Power Inductor	0.33	14.95	16.7	6	115	80	SMT	12.4	7.2	–	SMT	7.95	–	2	–	2	–	–	9.6	–
744383360068	SPEC		9 files EDA models: Components ZIP ALT WE-MAPI (rev24a).IntLib \| 588 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24a).zip \| 2.4 MB EAG Eagle_WE-MAPI (rev24a).lbr \| 170.6 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-30xx_3D (rev1).pdf \| 62.3 KB IGS WE-MAPI_3020 (rev1).igs \| 521.1 KB STP WE-MAPI_3020 (rev1).stp \| 287.6 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev23a).mod \| 31.1 KB Download all 9 files as zip archive ZIP	WE-MAPI SMT Power Inductor	0.68	6.75	8.1	22	85	80	SMT	6.2	27	–	SMT	4.1	–	2	–	2	–	–	4.5	–
744383560068	SPEC		9 files EDA models: Components ZIP ALT WE-MAPI (rev24a).IntLib \| 588 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24a).zip \| 2.4 MB EAG Eagle_WE-MAPI (rev24a).lbr \| 170.6 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-4020_3D (rev1).pdf \| 93.9 KB IGS Download_IGS_WE-MAPI_4020 (rev1).igs \| 337.9 KB STP Download_STP_WE-MAPI_4020 (rev1).stp \| 325.7 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev23a).mod \| 31.1 KB Download all 9 files as zip archive ZIP	WE-MAPI SMT Power Inductor	0.68	13.15	12.7	7.5	75	80	SMT	9.4	9	–	SMT	5.8	–	2	–	2	–	–	8.2	–
744316100	SPEC		8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_5040_744316 (rev1).igs \| 1.5 MB STP WE-HCI_5040_744316 (rev1).stp \| 605 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev23a).mod \| 26.9 KB Download all 8 files as zip archive ZIP	WE-HCI SMT Flat Wire High Current Inductor	1	14.8	11.5	–	158	–	SMT	11.5	5.225	Superflux	SMT	5.5	4.75	2	–	4	–	–	11.5	–
74438336015	SPEC		9 files EDA models: Components ZIP ALT WE-MAPI (rev24a).IntLib \| 588 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24a).zip \| 2.4 MB EAG Eagle_WE-MAPI (rev24a).lbr \| 170.6 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-30xx_3D (rev1).pdf \| 62.3 KB IGS WE-MAPI_3020 (rev1).igs \| 521.1 KB STP WE-MAPI_3020 (rev1).stp \| 287.6 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev23a).mod \| 31.1 KB Download all 9 files as zip archive ZIP	WE-MAPI SMT Power Inductor	1.5	5.35	5.85	33	51	80	SMT	4.5	39	–	SMT	2.95	–	2	–	2	–	–	3.7	–
74438356022	SPEC		9 files EDA models: Components ZIP ALT WE-MAPI (rev24a).IntLib \| 588 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24a).zip \| 2.4 MB EAG Eagle_WE-MAPI (rev24a).lbr \| 170.6 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-4020_3D (rev1).pdf \| 93.9 KB IGS Download_IGS_WE-MAPI_4020 (rev1).igs \| 337.9 KB STP Download_STP_WE-MAPI_4020 (rev1).stp \| 325.7 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev23a).mod \| 31.1 KB Download all 9 files as zip archive ZIP	WE-MAPI SMT Power Inductor	2.2	6.2	7.9	29	34	80	SMT	6.2	35	–	SMT	4.05	–	2	–	2	–	–	4.7	–
74408943047	SPEC		8 files EDA models: Components ZIP ALT WE-SPC (rev22d).IntLib \| 241.5 KB ZUK Download_CadStar_WE-SPC (rev19a).zip \| 43.6 KB CDS Cadence_WE-SPC (rev23a).zip \| 1.2 MB EAG Eagle_WE-SPC (rev23a).lbr \| 44.8 KB CAD files ZIP IGS WE-SPC_4838 (rev1).igs \| 1.5 MB STP WE-SPC_4838 (rev1).stp \| 426.6 KB Electric models ZIP PSP PSpice_WE-SPC (rev22a).zip \| 10.5 KB SCS Spectre_WE-SPC (rev23a).mod \| 12.3 KB Download all 8 files as zip archive ZIP	WE-SPC SMT Power Inductor	4.7	–	–	45	44	–	SMT	3.2	52	–	SMT	–	–	2	–	3.8	–	–	2.2	–
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	–	–	–	–	–	–	–	–	–	–	–	–	–	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	–	–	–	–	–	–	3	Single	–	Pin Header	Straight	2	Bag