LT1578

PRODUCTION

1.5A, 200kHz Step-Down Switching Regulator

Data Sheet Product Selection Table

Part Models: 8
1ku List Price: Starting From $3.98

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Part Details

1.5A Switch Current
High Efficiency—Low Loss 0.2Ω Switch
Constant 200kHz Switching Frequency
4V to 15V Input Voltage Range
Minimum Output: 1.21V
Low Supply Current: 1.9mA
Low Shutdown Current: 20µA
Easily Synchronizable Up to 400kHz
Cycle-by-Cycle Current Limit
Reduced EMI Generation
Low Thermal Resistance SO-8 Package
Uses Small Low Value Inductors

Part Models: 8
1ku List Price: Starting From $3.98

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
LT1578CS8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1578CS8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1578CS8-2.5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1578CS8-2.5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1578IS8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1578IS8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1578IS8-2.5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT1578IS8-2.5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 8, 2024 - 24_0236 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package
		PCN24_0236_Form Material_Report Marking Comparison Delta Qualification Matrix
LT1578CS8#PBF	PRODUCTION
LT1578CS8#TRPBF	PRODUCTION
LT1578CS8-2.5#PBF	PRODUCTION
LT1578CS8-2.5#TRPBF	PRODUCTION
LT1578IS8#PBF	PRODUCTION
LT1578IS8#TRPBF	PRODUCTION
LT1578IS8-2.5#PBF	PRODUCTION
LT1578IS8-2.5#TRPBF	PRODUCTION
Oct 12, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)
		PCN22_0254_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1578CS8#PBF	PRODUCTION
LT1578CS8#TRPBF	PRODUCTION
LT1578CS8-2.5#PBF	PRODUCTION
LT1578CS8-2.5#TRPBF	PRODUCTION
LT1578IS8#PBF	PRODUCTION
LT1578IS8#TRPBF	PRODUCTION
LT1578IS8-2.5#PBF	PRODUCTION
LT1578IS8-2.5#TRPBF	PRODUCTION
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
		PCN21_0060_Form Material_Report Delta Qualification Matrix
LT1578CS8#PBF	PRODUCTION
LT1578CS8#TRPBF	PRODUCTION
LT1578CS8-2.5#PBF	PRODUCTION
LT1578CS8-2.5#TRPBF	PRODUCTION
LT1578IS8#PBF	PRODUCTION
LT1578IS8#TRPBF	PRODUCTION
LT1578IS8-2.5#PBF	PRODUCTION
LT1578IS8-2.5#TRPBF	PRODUCTION

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

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Tools & Simulations

LTspice 1

LT1578 - Step-Down (Buck) Regulators

Models for the following parts are available in LTspice:

LT1578
LT1578-2.5

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.