Analog Devices LTC7103-1

Overview

Topology	Buck Converter
Input voltage	4.4-105 V
Switching frequency	200-2000 kHz
Output 1	2.3 A

Description

The LTC7103-1 is a high efficiency, monolithic synchro-nous step-down DC/DC converter utilizing a constant frequency, average current mode control architecture. It operates from an input voltage range of 4.4V to 105V and provides an adjustable regulated output voltage from 1V to VIN while delivering up to 2.3A of output current.

Features

Wide VIN Range: 4.4V to 105V (110V Abs Max)
Ultralow EMI/EMC Emissions: CISPR 25 Compliant
2μA IQ When Regulating 48VIN to 3.3VOUT
Fast and Accurate Output Current Programming and Monitoring with No External RSENSE
Brick Wall Current Limit
Low Minimum On-Time: 40ns
Wide VOUT Range: 1V to VIN
PassThru™/100% Duty Cycle Capable
Programmable Fixed Frequency: 200kHz to 2MHz
Eight, Pin-Selectable Fixed (1.2V to 15V) or Adjustable Output Voltages
Selectable Continuous, Pulse-Skipping, or Low Ripple Burst Mode® Operation at Light Loads
PLL Synchronization to External Clock
EXTVCC LDO Powers Chip from VOUT = 3.3V to 40V
OPTI-LOOP® or Fixed Internal Compensation
Input and Output Overvoltage Protection
Thermally Enhanced (5mm × 6mm) QFN Package
AEC-Q100 Qualification in Process

Typical applications

More information

Products

Order Code	Datasheet	Downloads	Product series	L (µH)	I_RP,40K (A)	I_SAT (A)	R_{DC max.} (mΩ)	f_res (MHz)	Size	Version	I_SAT,10% (A)	I_SAT,30% (A)	R_DC (mΩ)	Material	I_R (A)
744771112	SPEC	8 files EDA models: Components ZIP ALT WE-PD (rev22g).IntLib \| 2.8 MB ZUK CadStar_WE-PD (rev20a).zip \| 36.5 KB CDS Cadence_WE-PD (rev23a).zip \| 13.3 MB EAG Eagle_WE-PD (rev23a).lbr \| 296.9 KB CAD files ZIP IGS Download_WE-PD_1260_IGS (rev1).igs \| 3.1 MB STP Download_WE-PD_1260_STP (rev1).stp \| 754.9 KB Electric models ZIP PSP PSpice_WE-PD (rev22a).zip \| 58.7 KB SCS Spectre_WE-PD (rev23a).mod \| 77.8 KB Download all 8 files as zip archive ZIP	WE-PD SMT Power Inductor	12	7.4	4.9	26	19.7	1260	Standard	4.9	6.4	–	–	4.5
7443551181	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	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_1365_7443551 (rev1).igs \| 1.3 MB STP WE-HCI_1365_7443551 (rev1).stp \| 538.1 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	18	7.4	–	24200	16	1365	SMT	3.5	7.5	22	WE-PERM	–
7447715330	SPEC	8 files EDA models: Components ZIP ALT WE-PD (rev22g).IntLib \| 2.8 MB ZUK CadStar_WE-PD (rev20a).zip \| 36.5 KB CDS Cadence_WE-PD (rev23a).zip \| 13.3 MB EAG Eagle_WE-PD (rev23a).lbr \| 296.9 KB CAD files ZIP IGS Download_WE-PD_1245_IGS (rev1).igs \| 3.1 MB STP Download_WE-PD_1245_STP (rev1).stp \| 753.9 KB Electric models ZIP PSP PSpice_WE-PD (rev22a).zip \| 58.7 KB SCS Spectre_WE-PD (rev23a).mod \| 77.8 KB Download all 8 files as zip archive ZIP	WE-PD SMT Power Inductor	33	3.65	2.5	85	13	1245	Standard	2.5	3	–	–	2.3
7447709470	SPEC	8 files EDA models: Components ZIP ALT WE-PD (rev22g).IntLib \| 2.8 MB ZUK CadStar_WE-PD (rev20a).zip \| 36.5 KB CDS Cadence_WE-PD (rev23a).zip \| 13.3 MB EAG Eagle_WE-PD (rev23a).lbr \| 296.9 KB CAD files ZIP IGS Download_WE-PD_1210_IGS (rev1).igs \| 3.1 MB STP Download_WE-PD_1210_STP (rev1).stp \| 754.4 KB Electric models ZIP PSP PSpice_WE-PD (rev22a).zip \| 58.7 KB SCS Spectre_WE-PD (rev23a).mod \| 77.8 KB Download all 8 files as zip archive ZIP	WE-PD SMT Power Inductor	47	4.9	–	60	6.5	1210	Standard	4.5	5.5	–	–	3.8

	Order Code	Datasheet	Simulation
	744771112	SPEC
	7443551181	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
	7447715330	SPEC
	7447709470	SPEC

Samples

	Order Code	Datasheet	Simulation	Downloads	Product series	L (µH)	I_RP,40K (A)	I_SAT (A)	R_{DC max.} (mΩ)	f_res (MHz)	Size	Version	I_SAT,10% (A)	I_SAT,30% (A)	R_DC (mΩ)	Material	I_R (A)	Samples

IC manufacturers (96)

105V, 2.3A Low EMI Synchronous Step-Down Regulator with Fast Current Programming

Overview

Description

Features

Typical applications

More information

Products

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 8 files as zip archive
ZIP

PCN pending

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 8 files as zip archive
ZIP

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 8 files as zip archive
ZIP

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 8 files as zip archive
ZIP

PCN pending

Cart