Integrated Circuits (ICs)

LT8331IMSE#WPBF

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Analog Devices Inc./Maxim Integrated

DC-DC SWITCHING BOOST REGULATOR, ADJUSTABLE, 4.5 TO 100V IN, 140V/0.5A OUT, MSOP-EP-16

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Integrated Circuits (ICs)

LT8331IMSE#WPBF

Active

Analog Devices Inc./Maxim Integrated

DC-DC SWITCHING BOOST REGULATOR, ADJUSTABLE, 4.5 TO 100V IN, 140V/0.5A OUT, MSOP-EP-16

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DocumentsR570 Reliability Data Datasheet +1

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT8331IMSE#WPBF

Current - Output	500 mA
Frequency - Switching [Max]	500 kHz
Frequency - Switching [Min]	100 kHz
Function	Step-Up/Step-Down, Step-Up
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Output Configuration	True
Output Configuration	Positive or Negative
Output Type	Adjustable
Package / Case	3 mm
Package / Case	0.118 in
Package / Case	Exposed Pad, 16-TFSOP
Package / Case	12 Leads
Qualification	AEC-Q100
Supplier Device Package	16-MSOP-EP
Synchronous Rectifier	False
Topology	Boost, SEPIC, Flyback
Voltage - Input (Max) [Max]	100 V
Voltage - Input (Min) [Min]	4.5 V
Voltage - Output (Max) [Max]	140 V
Voltage - Output (Min/Fixed)	-1.6 V
Voltage - Output (Min/Fixed) [Min]	1.6 V

LT8331 Series

Low IQBoost/SEPIC/Flyback/Inverting Converter with 0.5A, 140V Switch

Part	Output Type	Current - Output	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Topology	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed) [Min]	Voltage - Output (Max) [Max]	Output Configuration	Number of Outputs	Function	Package / Case	Package / Case	Package / Case	Package / Case	Voltage - Input (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Voltage - Input (Min) [Min]	Qualification	Grade	Voltage - Input [Max]	Voltage - Input [Min]	Outputs and Type	Utilized IC / Part	Regulator Topology	Main Purpose	Frequency - Switching	Contents
Analog Devices Inc./Maxim Integrated LT8331IMSE#PBF	Adjustable	500 mA	Surface Mount	-40 C	125 °C	16-MSOP-EP	Boost Flyback SEPIC	-1.6 V	1.6 V	140 V	Positive or Negative	1	Step-Up Step-Up/Step-Down	3 mm	0.118 in	16-TFSOP Exposed Pad	12 Leads	100 V	500 kHz	100 kHz	4.5 V
Analog Devices Inc./Maxim Integrated LT8331EMSE#TRPBF	Adjustable	500 mA	Surface Mount	-40 C	125 °C	16-MSOP-EP	Boost Flyback SEPIC	-1.6 V	1.6 V	140 V	Positive or Negative	1	Step-Up Step-Up/Step-Down	3 mm	0.118 in	16-TFSOP Exposed Pad	12 Leads	100 V	500 kHz	100 kHz	4.5 V
Analog Devices Inc./Maxim Integrated LT8331IMSE#WPBF	Adjustable	500 mA	Surface Mount	-40 C	125 °C	16-MSOP-EP	Boost Flyback SEPIC	-1.6 V	1.6 V	140 V	Positive or Negative	1	Step-Up Step-Up/Step-Down	3 mm	0.118 in	16-TFSOP Exposed Pad	12 Leads	100 V	500 kHz	100 kHz	4.5 V	AEC-Q100	Automotive
Analog Devices Inc./Maxim Integrated DC2275A		80 mA																						48 V	10 V	1 Non-Isolated Output	LT8331	Boost	DC/DC Step Up	200 kHz	Board(s)
Analog Devices Inc./Maxim Integrated LT8331IMSE#TRPBF	Adjustable	500 mA	Surface Mount	-40 C	125 °C	16-MSOP-EP	Boost Flyback SEPIC	-1.6 V	1.6 V	140 V	Positive or Negative	1	Step-Up Step-Up/Step-Down	3 mm	0.118 in	16-TFSOP Exposed Pad	12 Leads	100 V	500 kHz	100 kHz	4.5 V
Analog Devices Inc./Maxim Integrated LT8331IMSE#WTRPBF	Adjustable	500 mA	Surface Mount	-40 C	125 °C	16-MSOP-EP	Boost Flyback SEPIC	-1.6 V	1.6 V	140 V	Positive or Negative	1	Step-Up Step-Up/Step-Down	3 mm	0.118 in	16-TFSOP Exposed Pad	12 Leads	100 V	500 kHz	100 kHz	4.5 V	AEC-Q100	Automotive
Analog Devices Inc./Maxim Integrated LT8331EMSE#PBF	Adjustable	500 mA	Surface Mount	-40 C	125 °C	16-MSOP-EP	Boost Flyback SEPIC	-1.6 V	1.6 V	140 V	Positive or Negative	1	Step-Up Step-Up/Step-Down	3 mm	0.118 in	16-TFSOP Exposed Pad	12 Leads	100 V	500 kHz	100 kHz	4.5 V

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	173	$ 10.99	1m+
	Tube	1	$ 11.57	1m+
		10	$ 8.12
		25	$ 7.23
		100	$ 6.23
		250	$ 5.75
		500	$ 5.46
		1000	$ 5.21
Newark	Each	1	$ 10.48	1m+
		10	$ 7.51
		25	$ 6.43
		74	$ 6.12
		111	$ 5.81
		259	$ 5.50
		518	$ 5.20

Description

General part information

LT8331 Series

The LT8331 is a current mode DC/DC converter with a 140V, 0.5A switch operating from a 4.5V to 100V input. With a unique single feedback pin architecture, it is capable of boost, SEPIC, flyback or inverting configurations. Burst Mode operation consumes as low as 6μA quiescent current to maintain high efficiency at very low output currents, while keeping typical output ripple below 20mV.The internally-compensated current mode architecture results in stable operation over a wide range of input and output voltages and programmable switching frequencies between 100kHz to 500kHz. A SYNC/MODE pin allows synchronization to an external clock. It can also be used to select between burst or pulse-skipping modes of operation. For increased efficiency, a BIAS pin can accept a second input to supply the INTVCCregulator. Additional features include frequency foldback and programmable soft-start for controlling inductor current during start-up.The LT8331 is available in a thermally-enhanced MSOP package with four pins removed for high voltage spacings.ApplicationsIndustrial and AutomotiveTelecomMedical Diagnostic EquipmentPortable Electronics

Documents

Technical documentation and resources

R570 Reliability Data

Reliability Data

Datasheet

Product Change Notice EN

Datasheet