Voltage Regulators - Switching Regulators

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LM5157x/LM5157x-Q1 Boost Flyback & SEPIC Converter

Texas Instruments LM5157x/LM5157x-Q1 Boost Flyback & SEPIC Converter is a wide input range, non-synchronous boost converter with integrated 50V, 6.5A (LM5157/LM5157-Q1) or 50V, 4.33A (LM51571-Q1) power switch. The device can be used in boost, SEPIC, and flyback topologies. The Texas Instruments LM5157x/LM5157x-Q1 can start up from a single-cell battery with a minimum of 2.9V. It can operate with the input supply voltage as low as 1.5V if the BIAS pin is greater than 2.9V. The LM5157x-Q1 devices are AEC-Q100 qualified for automotive applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Topology	Output Voltage	Output Current	Number of Outputs	Quiescent Current	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Switching Voltage Regulators 6-A 50-V 2.2-MHz w i de VIN boost flyba LM5157QRTERQ1 Texas Instruments 1: S/20.86 2,146In Stock	Mfr. Part # LM5157QRTERQ1 Mouser Part # 595-LM5157QRTERQ1	Texas Instruments	Switching Voltage Regulators 6-A 50-V 2.2-MHz w i de VIN boost flyba Learn More about Texas Instruments ti lm5157x q1 boost converter	Datasheet	2,146In Stock	Cut Tape S/20.86 S/15.88 S/14.64 S/13.27 View Reel S/11.25 S/12.69 S/12.14 S/12.03 S/11.25 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	WQFN-16	Boost, Flyback, SEPIC	12 V	1.6 A	1 Output	670 uA	2.2 MHz	- 40 C	+ 150 C	LM5157	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 6A/4A 50-V 2.2-MHz w ide VIN boost fly LM5157RTER Texas Instruments 1: S/15.10 913In Stock 6,000Expected 2/1/2027	Mfr. Part # LM5157RTER Mouser Part # 595-LM5157RTER	Texas Instruments	Switching Voltage Regulators 6A/4A 50-V 2.2-MHz w ide VIN boost fly Learn More about Texas Instruments ti lm5157x q1 boost converter	Datasheet	913In Stock 6,000Expected 2/1/2027	Cut Tape S/15.10 S/11.41 S/10.51 S/9.46 View Reel S/8.60 S/8.99 S/8.91 S/8.60 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	WQFN-16	Boost, Flyback, SEPIC	1.5 V to 48 V	7.5 A	1 Output	670 uA	100 kHz to 2.2 MHz	- 40 C	+ 125 C	LM5157	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 6A/4A 50-V 2.2-MHz w ide VIN boost fly LM51571RTER Texas Instruments 1: S/15.10 59In Stock 33,000On Order	Mfr. Part # LM51571RTER Mouser Part # 595-LM51571RTER	Texas Instruments	Switching Voltage Regulators 6A/4A 50-V 2.2-MHz w ide VIN boost fly Learn More about Texas Instruments ti lm5157x q1 boost converter	Datasheet	59In Stock 33,000On Order On Order Ship Dates Mfr. #: LM51571RTER Stock: 59 Can Ship Immediately On Order: 12,000 Expected 12/28/2026 21,000 Expected 2/4/2027 Factory Lead-Time: 20 Weeks	Cut Tape S/15.10 S/11.41 S/10.51 S/9.46 View Reel S/8.17 S/8.99 S/8.91 S/8.17 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	WQFN-16	Boost, Flyback, SEPIC	1.5 V to 48 V	5 A	1 Output	670 uA	100 kHz to 2.2 MHz	- 40 C	+ 125 C	LM5157	Reel, Cut Tape, MouseReel

LM5157x/LM5157x-Q1 Boost Flyback & SEPIC Converter

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