LT3575

PRODUCTION

Isolated Flyback Converter without an Opto-Coupler

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $3.56

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Part Details

3V to 40V Input Voltage Range
2.5A, 60V Integrated NPN Power Switch
Boundary Mode Operation
No Transformer Third Winding or Optoisolator Required for Regulation
Improved Primary-Side Winding Feedback Load Regulation
V_OUT Set with Two External Resistors
BIAS Pin for Internal Bias Supply and Power NPN Driver
Programmable Soft-Start
Programmable Power Switch Current Limit
Thermally Enhanced 16-Lead TSSOP

Part Models: 4
1ku List Price: Starting From $3.56

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
LT3575EFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3575EFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3575IFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3575IFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL
		PCN22_0068_Form Material_Report Delta Qualification Matrix
LT3575EFE#PBF	PRODUCTION
LT3575EFE#TRPBF	PRODUCTION
LT3575IFE#PBF	PRODUCTION
LT3575IFE#TRPBF	PRODUCTION

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

Hardware Ecosystem

Parts	Product Life Cycle	Description
High Voltage Hot Swap Controllers 1
LTC4364	RECOMMENDED FOR NEW DESIGNS	Surge Stopper with Ideal Diode
Isolated µModule Converters 2
LTM8048	RECOMMENDED FOR NEW DESIGNS	3.1V_IN to 32V_IN Isolated μModule (Power Module) DC/DC Converter with LDO Post Regulator
LTM8047	RECOMMENDED FOR NEW DESIGNS	3.1V_IN to 32V_IN Isolated μModule (Power Module) DC/DC Converter

Parts	Product Life Cycle	Description
LT8302 LT8302-3		42V_IN Micropower No-Opto Isolated Flyback Converter with 65V/3.6A Switch

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LT3575

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.

Evaluation Kits

LT3575EFE Demo Board | 10V to 28VIN, VOUT = 5V @ Up to 2A

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Product Details

Demonstration circuit 1643A is an isolated flyback converter featuring LT3575, a monolithic switching regulator specifically designed for the isolated flyback converter with an integrated 2.5A, 60V NPN transistor. The DC1643A is designed for 5V output from a 10V to 28V DC input. The output current capability depends on the input voltage, proper cooling, and the switch voltage stress. The output current is up to 1.4A when the input is higher than 10V, and 2A when the input is higher than 20V but less than 28V. The output current should not be higher than 2.4A for safe operation.

Resources

DC1643A - Schematic
52.00K

DC1643A - Demo Manual
225.00K

DC1643A - Design Files
2.00M

Latest Discussions

3 Years Ago

LT3575

Part Details

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

Technical Articles 1

Solutions Bulletin & Brochure 1

Product Selector Card 1