LT3575IFE#TRPBF

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Analog Devices Inc./Maxim Integrated

ISOLATED FLYBACK CONVERTER WITHOUT AN OPTO-COUPLER

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LT3575IFE#TRPBF

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Analog Devices Inc./Maxim Integrated

ISOLATED FLYBACK CONVERTER WITHOUT AN OPTO-COUPLER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3575 Series

The LT3575 is a monolithic switching regulator specifically designed for the isolated flyback topology. No third winding or optoisolator is required for regulation. The part senses the isolated output voltage directly from the primary side flyback waveform. A 2.5A, 60V NPN power switch is integrated along with all control logic into a 16-lead TSSOP package.The LT3575 operates with input supply voltages from 3V to 40V, and can deliver output power up to 14W with no external power switch.The LT3575 utilizes boundary mode operation to provide a small magnetic solution with improved load regulation.The output voltage is easily set with two external resistors and the transformer turns ratio. Off the shelf transformers are available for many applications.ApplicationsIndustrial, Automotive and Medical Isolated Power Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LT3575IFE#TRPBF

Current - Output	2.5 A
Frequency - Switching (Max)	1 MHz
Frequency - Switching (Min)	40 kHz
Function	Step-Up, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Isolation Capable, Positive or Negative
Package Features	Exposed Pad
Package Length	0.173 in
Package Name	16-TSSOP, 16-TSSOP-EP
Package Width	4.4 mm
Synchronous Rectifier	No
Topology	Flyback
Voltage - Input (Max)	40 V
Voltage - Input (Min)	3 V

LT3575 Series

Part	Topology	Synchronous Rectifier	Voltage - Input (Min)	Mounting Type	Current - Output	Package Width	Package Name	Package Features	Package Length	Output Configuration	Function	Frequency - Switching (Min)	Frequency - Switching (Max)	Voltage - Input (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Number of Outputs	Isolated Output Count	Output Type	Total Output Count	Contents	Frequency - Switching	Main Purpose	Regulator Topology	Voltage - Input (Minimum)	Voltage - Input (Maximum)	Utilized IC / Part	Voltage - Output
Analog Devices Inc./Maxim Integrated LT3575IFE#TRPBF	Flyback	No	3 V	Surface Mount	2.5 A	4.4 mm	16-TSSOP 16-TSSOP-EP	Exposed Pad	0.173 in	Isolation Capable Positive or Negative	Step-Down Step-Up	40 kHz	1 MHz	40 V	125 °C	-40 °C	1
Analog Devices Inc./Maxim Integrated LT3575EFE#PBF	Flyback	No	3 V	Surface Mount	2.5 A	4.4 mm	16-TSSOP 16-TSSOP-EP	Exposed Pad	0.173 in	Isolation Capable Positive or Negative	Step-Down Step-Up	40 kHz	1 MHz	40 V	125 °C	-40 °C	1
Analog Devices Inc./Maxim Integrated LT3575IFE#PBF	Flyback	No	3 V	Surface Mount	2.5 A	4.4 mm	16-TSSOP 16-TSSOP-EP	Exposed Pad	0.173 in	Isolation Capable Positive or Negative	Step-Down Step-Up	40 kHz	1 MHz	40 V	125 °C	-40 °C	1
Analog Devices Inc./Maxim Integrated LT3575EFE#TRPBF	Flyback	No	3 V	Surface Mount	2.5 A	4.4 mm	16-TSSOP 16-TSSOP-EP	Exposed Pad	0.173 in	Isolation Capable Positive or Negative	Step-Down Step-Up	40 kHz	1 MHz	40 V	125 °C	-40 °C	1
Analog Devices Inc./Maxim Integrated DC1643A					2 A													1	Isolated	1	Board	90 kHz	DC/DC Converter	Flyback	10 V	28 V	LT3575	5 VDC

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LT3575IFE#TRPBF | Datasheet

R530 Reliability Data