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LM5155/LM5155-Q1 Non-Synchronous Boost Controllers

Texas Instruments LM5155/LM5155-Q1 Non-Synchronous Boost Controllers offer a wide input range and utilize peak current mode control. The LM5155/LM5155-Q1 allows boost, SEPIC, and flyback topologies. Featured for the LM5155/LM5155-Q1 is a 1-cell battery startup with a minimum of 2.97V if the BIAS pin is connected to the VCC pin. Additionally, the device can operate with the input supply voltage as low as 1.5V if the BIAS pin exceeds 3.5V.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Topology	Number of Outputs	Switching Frequency	Duty Cycle - Max	Output Voltage	Output Current	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package / Case	Qualification	Packaging
	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM51551QDSSRQ1 LM51551QDSSTQ1 Texas Instruments 1: $5.18 3,799In Stock	Mfr. Part # LM51551QDSSTQ1 Mouser Part # 595-LM51551QDSSTQ1	Texas Instruments	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM51551QDSSRQ1 Learn More about Texas Instruments ti lm5155 controllers	Datasheet	3,799In Stock	Cut Tape $5.18 $3.90 $3.59 $3.23 Reel $2.94 View $2.82 $2.75 $2.72 MouseReel Available	Min.: 1 Mult.: 1 : 250			Boost, Flyback, SEPIC	1 Output	100 kHz to 2.2 MHz	96 %	1.5 V to 300 V	1.5 A	- 40 C	+ 150 C	SMD/SMT	WSON-12	AEC-Q100	Reel, Cut Tape, MouseReel
	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM5155DSSR LM5155DSST Texas Instruments 1: $4.45 67In Stock 1,000Expected 2026-10-13	Mfr. Part # LM5155DSST Mouser Part # 595-LM5155DSST	Texas Instruments	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM5155DSSR Learn More about Texas Instruments ti lm5155 controllers	Datasheet	67In Stock 1,000Expected 2026-10-13	Cut Tape $4.45 $3.33 $3.04 $2.74 Reel $2.56 View $2.48 $2.38 $2.32 $2.26 MouseReel Available	Min.: 1 Mult.: 1 : 250			Boost, Flyback, SEPIC	1 Output	100 kHz to 2.2 MHz	93 %	1.5 V to 300 V	1.5 A	- 40 C	+ 125 C	SMD/SMT	WSON-12		Reel, Cut Tape, MouseReel
	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM51551QDSSTQ1 LM51551QDSSRQ1 Texas Instruments 1: $4.55 85In Stock 6,000Expected 2026-12-24	Mfr. Part # LM51551QDSSRQ1 Mouser Part # 595-LM51551QDSSRQ1	Texas Instruments	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM51551QDSSTQ1 Learn More about Texas Instruments ti lm5155 controllers	Datasheet	85In Stock 6,000Expected 2026-12-24	Cut Tape $4.55 $3.41 $3.14 $2.82 Reel $2.36 View $2.66 $2.62 $2.49 $2.32 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			Boost, Flyback, SEPIC	1 Output	100 kHz to 2.2 MHz	96 %	1.5 V to 300 V	1.5 A	- 40 C	+ 150 C	SMD/SMT	WSON-12	AEC-Q100	Reel, Cut Tape, MouseReel
	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM5155DSST LM5155DSSR Texas Instruments 1: $3.18 5,931In Stock 9,000Expected 2027-03-04	Mfr. Part # LM5155DSSR Mouser Part # 595-LM5155DSSR	Texas Instruments	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM5155DSST Learn More about Texas Instruments ti lm5155 controllers	Datasheet	5,931In Stock 9,000Expected 2027-03-04	Cut Tape $3.18 $2.36 $2.16 $1.93 Reel $1.67 View $1.81 $1.76 $1.73 $1.57 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			Boost, Flyback, SEPIC	1 Output	100 kHz to 2.2 MHz	93 %	1.5 V to 300 V	1.5 A	- 40 C	+ 125 C	SMD/SMT	WSON-12		Reel, Cut Tape, MouseReel
	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM5155QDSSTQ1 LM5155QDSSRQ1 Texas Instruments 1: $4.55 2,993Expected 2027-01-08	Mfr. Part # LM5155QDSSRQ1 Mouser Part # 595-LM5155QDSSRQ1	Texas Instruments	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM5155QDSSTQ1 Learn More about Texas Instruments ti lm5155 controllers	Datasheet	2,993Expected 2027-01-08	Cut Tape $4.55 $3.41 $3.14 $2.82 Reel $2.36 View $2.66 $2.62 $2.49 $2.32 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			Boost, Flyback, SEPIC	1 Output	100 kHz to 2.2 MHz	96 %	1.5 V to 300 V	1.5 A	- 40 C	+ 125 C	SMD/SMT	WSON-12	AEC-Q100	Reel, Cut Tape, MouseReel
	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM5155QDSSRQ1 LM5155QDSSTQ1 Texas Instruments 1: $5.18 1,000Expected 2028-03-06	Mfr. Part # LM5155QDSSTQ1 Mouser Part # 595-LM5155QDSSTQ1	Texas Instruments	Switching Controllers 2.2-MHz wide VIN 1. 5-A MOSFET driver n A 595-LM5155QDSSRQ1 Learn More about Texas Instruments ti lm5155 controllers	Datasheet	1,000Expected 2028-03-06	Cut Tape $5.18 $3.90 $3.59 $3.23 Reel $3.05 View $2.89 $2.81 $2.78 $2.74 MouseReel Available	Min.: 1 Mult.: 1 : 250			Boost, Flyback, SEPIC	1 Output	100 kHz to 2.2 MHz	96 %	1.5 V to 300 V	1.5 A	- 40 C	+ 125 C	SMD/SMT	WSON-12	AEC-Q100	Reel, Cut Tape, MouseReel