Integrated Circuits (ICs)

LT3958EUHE#PBF

Active

Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS HI IN V, BOOST, FLY, SEPIC & INV CONV

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Integrated Circuits (ICs)

LT3958EUHE#PBF

Active

Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS HI IN V, BOOST, FLY, SEPIC & INV CONV

Deep-Dive with AI

DocumentsDatasheet R530 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT3958EUHE#PBF

Current - Output	3.3 A
Frequency - Switching [Max]	1 MHz
Frequency - Switching [Min]	100 kHz
Function	Step-Up/Step-Down, Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Output Configuration	Positive or Negative
Output Type	Adjustable
Package / Case	36-WFQFN, 28 Leads, Exposed Pad
Supplier Device Package	36-QFN
Supplier Device Package [x]	5
Supplier Device Package [y]	6
Synchronous Rectifier	False
Topology	Boost, Cuk, Flyback, SEPIC
Voltage - Input (Max) [Max]	80 V
Voltage - Input (Min) [Min]	5 V
Voltage - Output (Max) [Max]	84 V
Voltage - Output (Min/Fixed)	1.6 V

LT3958 Series

Part	Mounting Type	Voltage - Output (Min/Fixed)	Package / Case	Number of Outputs	Output Configuration	Output Type	Frequency - Switching [Min]	Frequency - Switching [Max]	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Supplier Device Package [y]	Supplier Device Package [x]	Supplier Device Package	Function	Current - Output	Voltage - Input (Max) [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Topology
Analog Devices Inc./Maxim Integrated LT3958IUHE#TRPBF	Surface Mount	1.6 V	36-WFQFN 28 Leads Exposed Pad	1	Positive or Negative	Adjustable	100 kHz	1 MHz	5 V	84 V	6	5	36-QFN	Step-Up Step-Up/Step-Down	3.3 A	80 V	-40 C	125 °C	Boost Cuk Flyback SEPIC
Analog Devices Inc./Maxim Integrated LT3958IUHE#PBF	Surface Mount	1.6 V	36-WFQFN 28 Leads Exposed Pad	1	Positive or Negative	Adjustable	100 kHz	1 MHz	5 V	84 V	6	5	36-QFN	Step-Up Step-Up/Step-Down	3.3 A	80 V	-40 C	125 °C	Boost Cuk Flyback SEPIC
Analog Devices Inc./Maxim Integrated LT3958EUHE#PBF	Surface Mount	1.6 V	36-WFQFN 28 Leads Exposed Pad	1	Positive or Negative	Adjustable	100 kHz	1 MHz	5 V	84 V	6	5	36-QFN	Step-Up Step-Up/Step-Down	3.3 A	80 V	-40 C	125 °C	Boost Cuk Flyback SEPIC
Analog Devices Inc./Maxim Integrated LT3958EUHE#TRPBF	Surface Mount	1.6 V	36-WFQFN 28 Leads Exposed Pad	1	Positive or Negative	Adjustable	100 kHz	1 MHz	5 V	84 V	6	5	36-QFN	Step-Up Step-Up/Step-Down	3.3 A	80 V	-40 C	125 °C	Boost Cuk Flyback SEPIC

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	N/A	529	$ 9.99	1m+
	Tube	1	$ 10.48	1m+
		10	$ 7.31
		61	$ 5.86
		122	$ 5.47
		305	$ 5.05
		549	$ 4.83
		1037	$ 4.63
Mouser	N/A	1	$ 9.99	1m+
		10	$ 6.79
		25	$ 5.30
		100	$ 4.75
		244	$ 4.57
		2501	$ 4.54

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