LT3433EFE#TRPBF

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Analog Devices Inc./Maxim Integrated

DC-DC SWITCHING BUCK, BOOST REGULATOR, ADJUSTABLE, 4 TO 60V IN, 3.3 TO 20V/0.5A OUT, TSSOP-EP-16

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LT3433EFE#TRPBF

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Analog Devices Inc./Maxim Integrated

DC-DC SWITCHING BUCK, BOOST REGULATOR, ADJUSTABLE, 4 TO 60V IN, 3.3 TO 20V/0.5A OUT, TSSOP-EP-16

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3433 Series

The LT3433 is a 200kHz fixed-frequency current mode switching regulator that provides both step-up and stepdown regulation using a single inductor. The IC operates over a 4V to 60V input voltage range making it suitable for use in various wide input voltage range applications such as automotive electronics that must withstand both load dump and cold crank conditions.Internal control circuitry monitors system conditions and converts from single switch buck operation to dual switch bridged operation when required, seamlessly changing between step-down and step-up voltage conversion.Optional Burst Mode®operation reduces no-load quiescent current to 100µA and maintains high efficiencies with light loads.Current limit foldback and frequency foldback help prevent inductor current runaway during start-up. Programmable soft-start helps prevent output overshoot at start-up.The LT3433 is available in a 16-lead thermally enhanced TSSOP package.Applications12V Automotive SystemsWall Adapter Powered SystemsBattery Power Voltage Buffering

Technical Specifications

Parameters and characteristics for this part

Specification	LT3433EFE#TRPBF

Current - Output	500 mA
Frequency - Switching	200 kHz
Function	Step-Up, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	0 °C
Output Configuration	Positive
Output Type	Adjustable
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	Buck-Boost
Voltage - Input (Max)	60 V
Voltage - Input (Min)	4 V
Voltage - Output (Max)	20 V
Voltage - Output (Min/Fixed)	3.3 V

LT3433 Series

Part	Operating Temperature (Max)	Operating Temperature (Min)	Package Width	Package Name	Package Features	Package Length	Output Configuration	Function	Voltage - Output (Min/Fixed)	Number of Outputs	Mounting Type	Voltage - Input (Max)	Output Type	Synchronous Rectifier	Topology	Frequency - Switching	Voltage - Output (Max)	Voltage - Input (Min)	Current - Output
Analog Devices Inc./Maxim Integrated LT3433EFE#TRPBF	125 °C	0 °C	4.4 mm	16-TSSOP 16-TSSOP-EP	Exposed Pad	0.173 in	Positive	Step-Down Step-Up	3.3 V	1	Surface Mount	60 V	Adjustable	No	Buck-Boost	200 kHz	20 V	4 V	500 mA
Analog Devices Inc./Maxim Integrated LT3433IFE#TRPBF	125 °C	-40 °C	4.4 mm	16-TSSOP 16-TSSOP-EP	Exposed Pad	0.173 in	Positive	Step-Down Step-Up	3.3 V	1	Surface Mount	60 V	Adjustable	No	Buck-Boost	200 kHz	20 V	4 V	500 mA
Analog Devices Inc./Maxim Integrated LT3433EFE#PBF	125 °C	0 °C	4.4 mm	16-TSSOP 16-TSSOP-EP	Exposed Pad	0.173 in	Positive	Step-Down Step-Up	3.3 V	1	Surface Mount	60 V	Adjustable	No	Buck-Boost	200 kHz	20 V	4 V	500 mA
Analog Devices Inc./Maxim Integrated LT3433IFE#PBF	125 °C	-40 °C	4.4 mm	16-TSSOP 16-TSSOP-EP	Exposed Pad	0.173 in	Positive	Step-Down Step-Up	3.3 V	1	Surface Mount	60 V	Adjustable	No	Buck-Boost	200 kHz	20 V	4 V	500 mA

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LT3433EFE#TRPBF | Datasheet

Tape and Reel Packaging

R468 Reliability Data