LTC1503

PRODUCTION

High Efficiency Inductorless Step-Down DC/DC Converter

Data Sheet Product Selection Table

Part Models: 11
1ku List Price: Starting From $2.48

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Part Details

Input Voltage Range: 2.4V to 6V
Fixed Output Voltages: 1.8V ±4%, 2V ±4%
Output Current: Up to 100mA
No Inductors
Typical Efficiency 25% Higher than LDOs
Low Operating Current: 25µA
Low Shutdown Current: 5µA
600kHz Switching Frequency
Shutdown Disconnects Load from V_IN
Soft-Start Limits Inrush Current at Turn-On
Short-Circuit and Overtemperature Protected
Available in 8-Pin MSOP and SO Packages

Part Models: 11
1ku List Price: Starting From $2.48

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC1503CMS8-1.8#PBF	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503CMS8-1.8#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503CMS8-2#PBF	8-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503CS8-1.8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503CS8-1.8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503CS8-2#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503CS8-2#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503IS8-1.8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503IS8-1.8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503IS8-2#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1503IS8-2#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report Qualification Results Summary
LTC1503CMS8-1.8#PBF	PRODUCTION
LTC1503CMS8-1.8#TRPBF	PRODUCTION
LTC1503CMS8-2#PBF	PRODUCTION
Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3)
		PCN24_0004_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1503CMS8-1.8#PBF	PRODUCTION
LTC1503CMS8-1.8#TRPBF	PRODUCTION
LTC1503CMS8-2#PBF	PRODUCTION
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LTC1503CMS8-1.8#PBF	PRODUCTION
LTC1503CMS8-1.8#TRPBF	PRODUCTION
LTC1503CMS8-2#PBF	PRODUCTION
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
		PCN22_0255_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1503CS8-1.8#PBF	PRODUCTION
LTC1503CS8-1.8#TRPBF	PRODUCTION
LTC1503CS8-2#PBF	PRODUCTION
LTC1503CS8-2#TRPBF	PRODUCTION
LTC1503IS8-1.8#PBF	PRODUCTION
LTC1503IS8-1.8#TRPBF	PRODUCTION
LTC1503IS8-2#PBF	PRODUCTION
LTC1503IS8-2#TRPBF	PRODUCTION
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
		PCN21_0026_Form Material_Report Delta Qualification Matrix
LTC1503CS8-1.8#PBF	PRODUCTION
LTC1503CS8-1.8#TRPBF	PRODUCTION
LTC1503CS8-2#PBF	PRODUCTION
LTC1503CS8-2#TRPBF	PRODUCTION
LTC1503IS8-1.8#PBF	PRODUCTION
LTC1503IS8-1.8#TRPBF	PRODUCTION
LTC1503IS8-2#PBF	PRODUCTION
LTC1503IS8-2#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 1

LTC1503 - Inductorless (Charge Pump) DC/DC Converters

Models for the following parts are available in LTspice:

LTC1503-1.8
LTC1503-2

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.