Texas Instruments-LM3668SDX-4550/NOPB DC to DC Converter and Switching Regulator Chip Conv DC-DC 2.5V to 5.5V Non-Inv/Inv/Step Up/Step Down Single-Out 2.8V/3.3V 1A 12-Pin WSON EP T/R

Integrated Circuits (ICs)

LM3668SD-3.3/NOPB

Obsolete

Texas Instruments

CONV DC-DC 2.5V TO 5.5V NON-INV/INV/STEP UP/STEP DOWN SINGLE-OUT 3.3V 1A 12-PIN WSON EP T/R

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Integrated Circuits (ICs)

LM3668SD-3.3/NOPB

Obsolete

Texas Instruments

CONV DC-DC 2.5V TO 5.5V NON-INV/INV/STEP UP/STEP DOWN SINGLE-OUT 3.3V 1A 12-PIN WSON EP T/R

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM3668SD-3.3/NOPB

Current - Output	1 A
Frequency - Switching	2.2 MHz
Function	Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	12-WFDFN Exposed Pad
Supplier Device Package	12-WSON (3x3)
Synchronous Rectifier	True
Topology	Buck-Boost
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.5 V
Voltage - Output (Min/Fixed)	3.3 V

LM3668 Series

Part	Topology	Number of Outputs	Voltage - Output (Min/Fixed)	Output Type	Voltage - Input (Max) [Max]	Function	Voltage - Input (Min) [Min]	Package / Case	Supplier Device Package	Mounting Type	Current - Output	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Frequency - Switching	Voltage - Output (Min/Fixed)	Qualification	Grade	Frequency - Switching [Min]	Frequency - Switching [Max]	Board Type	Voltage - Input [Min]	Voltage - Input [Max]	Regulator Topology	Outputs and Type	Outputs and Type	Supplied Contents	Utilized IC / Part	Main Purpose	Voltage - Output	Output Type
Texas Instruments LM3668SDX-2833/NOPB	Buck-Boost	1	2.8 V 3.3 V	Programmable	5.5 V	Step-Up/Step-Down	2.5 V	12-WFDFN Exposed Pad	12-WSON (3x3)	Surface Mount	1 A	Positive	85 °C	-40 °C	2.2 MHz
Texas Instruments LM3668SD-4550/NOPB	Buck-Boost	1	4.5 V	Programmable	5.5 V	Step-Up/Step-Down	2.5 V	12-WFDFN Exposed Pad	12-WSON (3x3)	Surface Mount	1 A	Positive	85 °C	-40 °C	2.2 MHz	5 V
Texas Instruments LM3668QDNTRQ1	Buck-Boost	1	4.5 V	Adjustable	5.5 V	Step-Up/Step-Down	2.7 V	12-WFDFN Exposed Pad	12-WSON (4x4)	Surface Mount	1 A	Positive	125 ¯C	-40 °C		5 V	AEC-Q100	Automotive	1.9 MHz	2.5 MHz
Texas Instruments LM3668SD-3034/NOPB	Buck-Boost	1	3 V 3.4 V	Programmable	5.5 V	Step-Up/Step-Down	2.5 V	12-WFDFN Exposed Pad	12-WSON (3x3)	Surface Mount	1 A	Positive	85 °C	-40 °C	2.2 MHz
Texas Instruments LM3668SD-2833/NOPB	Buck-Boost	1	2.8 V 3.3 V	Programmable	5.5 V	Step-Up/Step-Down	2.5 V	12-WFDFN Exposed Pad	12-WSON (3x3)	Surface Mount	1 A	Positive	85 °C	-40 °C	2.2 MHz
Texas Instruments LM3668SD-2833EV/NOPB											1 A				2.2 MHz						Fully Populated	2.5 V	5.5 V	Buck-Boost	Non-Isolated	1	Board(s)	LM3668	DC/DC Step Up or Down	2.8 V 3.3 V
Texas Instruments LM3668SD-4550EV											1 A				2.2 MHz						Fully Populated	2.5 V	5.5 V	Buck-Boost	Non-Isolated	1	Board(s)	LM3668	DC/DC Step Up or Down	4.5 V 5 V
Texas Instruments LM3668SDX-3034/NOPB	Buck-Boost	1	3 V 3.4 V	Programmable	5.5 V	Step-Up/Step-Down	2.5 V	12-WFDFN Exposed Pad	12-WSON (3x3)	Surface Mount	1 A	Positive	85 °C	-40 °C	2.2 MHz
Texas Instruments LM3668SDX-4550/NOPB	Buck-Boost	1	4.5 V	Programmable	5.5 V	Step-Up/Step-Down	2.5 V	12-WFDFN Exposed Pad	12-WSON (3x3)	Surface Mount	1 A	Positive	85 °C	-40 °C	2.2 MHz	5 V
Texas Instruments LM3668SD-3.3/NOPB	Buck-Boost	1	3.3 V		5.5 V	Step-Up/Step-Down	2.5 V	12-WFDFN Exposed Pad	12-WSON (3x3)	Surface Mount	1 A	Positive	85 °C	-40 °C	2.2 MHz																1.81 mOhm

Pricing

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

Distributor	Package	Quantity	$

Description

General part information

LM3668 Series

Buck-Boost Switching Regulator IC Positive Fixed 3.3V 1 Output 1A 12-WFDFN Exposed Pad

Documents

Technical documentation and resources

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