LT3958EUHE#TRPBF

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Analog Devices Inc./Maxim Integrated

HIGH INPUT VOLTAGE, BOOST, FLYBACK, SEPIC AND INVERTING CONVERTER

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LT3958EUHE#TRPBF

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Analog Devices Inc./Maxim Integrated

HIGH INPUT VOLTAGE, BOOST, FLYBACK, SEPIC AND INVERTING CONVERTER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3958 Series

The LT3958 is a wide input range, current mode, DC/DC converter which is capable of generating either positive or negative output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter. It features an internal low side N-channel power MOSFET rated for 84V at 3.3A and driven from an internal regulated 7.2V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages.The operating frequency of LT3958 can be set with an external resistor over a 100kHz to 1MHz range, and can be synchronized to an external clock using the SYNC pin. A minimum operating supply voltage of 5V, and a low shutdown quiescent current of less than 1μA, make the LT3958 ideally suited for battery-powered systems.The LT3958 features soft-start and frequency foldback functions to limit inductor current during start-up.ApplicationsAutomotiveTelecomIndustrial

Technical Specifications

Parameters and characteristics for this part

Specification	LT3958EUHE#TRPBF

Current - Output	3.3 A
Frequency - Switching (Max)	1 MHz
Frequency - Switching (Min)	100 kHz
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive or Negative, Positive, Negative
Output Type	Adjustable
Package Leads	28 Leads
Package Length	5 mm
Package Name	36-QFN, 36-WFQFN
Package Width	6 mm
Synchronous Rectifier	No
Topology	Boost, SEPIC, Cuk, Flyback
Voltage - Input (Max)	80 V p-p
Voltage - Input (Min)	5 V
Voltage - Output (Max)	84 V
Voltage - Output (Min/Fixed)	1.6 V

LT3958 Series

Part	Topology	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Input (Max)	Current - Output	Function	Synchronous Rectifier	Package Width	Package Name	Package Length	Voltage - Output (Max)	Voltage - Input (Min)	Frequency - Switching (Max)	Frequency - Switching (Min)	Output Type	Output Configuration	Number of Outputs	Package Leads	Voltage - Output (Min/Fixed)	Mounting Type
Analog Devices Inc./Maxim Integrated LT3958IUHE#TRPBF	Boost Cuk Flyback SEPIC	125 °C	-40 °C	80 V p-p	3.3 A	Step-Up Step-Up/Step-Down	No	6 mm	36-QFN 36-WFQFN	5 mm	84 V	5 V	1 MHz	100 kHz	Adjustable	Negative Positive Positive or Negative	1	28 Leads	1.6 V	Surface Mount
Analog Devices Inc./Maxim Integrated LT3958IUHE#PBF	Boost Cuk Flyback SEPIC	125 °C	-40 °C	80 V p-p	3.3 A	Step-Up Step-Up/Step-Down	No	6 mm	36-QFN 36-WFQFN	5 mm	84 V	5 V	1 MHz	100 kHz	Adjustable	Negative Positive Positive or Negative	1	28 Leads	1.6 V	Surface Mount
Analog Devices Inc./Maxim Integrated LT3958EUHE#PBF	Boost Cuk Flyback SEPIC	125 °C	-40 °C	80 V p-p	3.3 A	Step-Up Step-Up/Step-Down	No	6 mm	36-QFN 36-WFQFN	5 mm	84 V	5 V	1 MHz	100 kHz	Adjustable	Negative Positive Positive or Negative	1	28 Leads	1.6 V	Surface Mount
Analog Devices Inc./Maxim Integrated LT3958EUHE#TRPBF	Boost Cuk Flyback SEPIC	125 °C	-40 °C	80 V p-p	3.3 A	Step-Up Step-Up/Step-Down	No	6 mm	36-QFN 36-WFQFN	5 mm	84 V	5 V	1 MHz	100 kHz	Adjustable	Negative Positive Positive or Negative	1	28 Leads	1.6 V	Surface Mount

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R530 Reliability Data

LT3958EUHE#TRPBF | Datasheet

Tape and Reel Packaging