Voltage Regulators - Switching Regulators

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LM257x SIMPLE SWITCHER® Voltage Regulators

Texas Instruments LM257x SIMPLE SWITCHER^® Step-Down Voltage Regulators are high-efficiency devices ranging from 0.5A to 3A output current. TI LM2574 and LM2574HV SIMPLE SWITCHER Step-Down Voltage Regulators provide all the active functions for a step-down (buck) switching regulator capable of driving a 0.5A load with excellent line and load regulation. The LM2575 and LM2575HV step-down voltage regulators provide all the active functions for a step-down (buck) switching regulator capable of driving a 1A load with excellent line and load regulation.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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 0.5A STEP-DOWN VLTG REG A 926-LM2574HVMX A 926-LM2574HVMXADJNPB LM2574HVM-ADJ/NOPB Texas Instruments 1: $5.90 19,938In Stock	Mfr. Part No. LM2574HVM-ADJ/NOPB Mouser Part No 926-LM2574HVMADJNOPB	Texas Instruments	Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574HVMX A 926-LM2574HVMXADJNPB Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	19,938In Stock	$5.90 $4.50 $4.00 $3.76 View $3.40 $3.30 $3.20 $3.13	Min.: 1 Mult.: 1	SMD/SMT	SOIC-Wide-14	Buck	1.23 V to 57 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574HV	Tube
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSX1 A 926-LM2576HVSX12NOPB LM2576HVS-12/NOPB Texas Instruments 1: $9.47 6,832In Stock	Mfr. Part No. LM2576HVS-12/NOPB Mouser Part No 926-LM2576HVS-12NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSX1 A 926-LM2576HVSX12NOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	6,832In Stock	$9.47 $7.41 $6.61 $5.83 View $5.65 $5.45 $5.38 Quote	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	12 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576HV	Tube
Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG LM2574HVN-5.0/NOPB Texas Instruments 1: $7.51 5,253In Stock	Mfr. Part No. LM2574HVN-5.0/NOPB Mouser Part No 926-LM2574HVN5.0NOPB	Texas Instruments	Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	5,253In Stock	$7.51 $5.80 $5.19 $4.84 View $4.76 $4.63 $4.52	Min.: 1 Mult.: 1	Through Hole	PDIP-8	Buck	5 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574HV	Tube
Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574HVM15NOPB A A 926-LM2574HVM15NOPB LM2574HVMX-15/NOPB Texas Instruments 1: $4.92 644In Stock	Mfr. Part No. LM2574HVMX-15/NOPB Mouser Part No 926-LM2574HVMX15NOPB	Texas Instruments	Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574HVM15NOPB A A 926-LM2574HVM15NOPB Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	644In Stock	Cut Tape $4.92 $3.76 $3.45 $3.13 Reel $2.79 View $2.98 $2.90 $2.73 $2.72 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-Wide-14	Buck, Inverting	15 V	500 mA	1 Output		58 kHz	- 40 C	+ 125 C	LM2574HV	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re A 926-LM2575M-ADJ/NOPB LM2575MX-ADJ/NOPB Texas Instruments 1: $3.09 949In Stock	Mfr. Part No. LM2575MX-ADJ/NOPB Mouser Part No 926-LM2575MXADJNOPB	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re A 926-LM2575M-ADJ/NOPB Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	949In Stock	Cut Tape $3.09 $2.33 $2.12 $1.91 Reel $1.63 View $1.81 $1.78 $1.58 $1.57 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-24	Buck	1.23 V to 37 V	1 A	1 Output	10 mA	58 kHz	- 40 C	+ 125 C	LM2575	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re LM2575T-15/LF03 Texas Instruments 1: $4.11 650In Stock	Mfr. Part No. LM2575T-15/LF03 Mouser Part No 926-LM2575T-15/LF03	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	650In Stock	$4.11 $3.11 $2.72 $2.52 View $2.44 $2.42 $2.33 $2.30	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	15 V	1 A	1 Output		52 kHz	- 40 C	+ 125 C	LM2575	Tube
Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574HVM12NOPB A A 926-LM2574HVM12NOPB LM2574HVMX-12/NOPB Texas Instruments 1: $5.04 2,767In Stock	Mfr. Part No. LM2574HVMX-12/NOPB Mouser Part No 926-LM2574HVMX12NOPB	Texas Instruments	Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574HVM12NOPB A A 926-LM2574HVM12NOPB Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	2,767In Stock	Cut Tape $5.04 $3.83 $3.54 $3.20 Reel $2.73 View $3.05 $3.04 $2.69 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-Wide-14	Buck	12 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574HV	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575SX-AD A 926-LM2575SX-ADJNOPB LM2575S-ADJ/NOPB Texas Instruments 1: $5.02 2,178In Stock	Mfr. Part No. LM2575S-ADJ/NOPB Mouser Part No 926-LM2575S-ADJ/NOPB	Texas Instruments	Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575SX-AD A 926-LM2575SX-ADJNOPB Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	2,178In Stock	$5.02 $3.83 $2.90 $2.76 View $2.67 $2.65	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	1.23 V to 37 V	1 A	1 Output	10 mA	52 kHz	- 40 C	+ 125 C	LM2575	Tube
Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re LM2575HVT-12/LF03 Texas Instruments 1: $6.07 205In Stock	Mfr. Part No. LM2575HVT-12/LF03 Mouser Part No 926-LM2575HVT12LF03	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	205In Stock	$6.07 $4.65 $4.23 $3.61 View $3.54 $3.47 $3.44 Quote	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	12 V	1 A	1 Output	10 mA	58 kHz	- 40 C	+ 125 C	LM2575HV	Tube
Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone LM2576T-ADJ/LF02 Texas Instruments 1: $3.98 401In Stock	Mfr. Part No. LM2576T-ADJ/LF02 Mouser Part No 926-LM2576T-ADJ/LF02	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	401In Stock	$3.98 $3.01 $2.64 $2.44 View $2.35 $2.27 $2.15 $2.11	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	1.23 V to 37 V	3 A	1 Output		52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re A 926-LM2575HVS3.3NOPB LM2575HVSX-3.3/NOPB Texas Instruments 1: $5.30 444In Stock	Mfr. Part No. LM2575HVSX-3.3/NOPB Mouser Part No 926-LM2575HVSX33NOPB	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re A 926-LM2575HVS3.3NOPB Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	444In Stock	Cut Tape $5.30 $4.04 $3.72 $3.37 Reel $3.13 View $3.21 $2.98 $2.95 Quote MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-5	Buck	3.3 V	1 A	1 Output	10 mA	58 kHz	- 40 C	+ 125 C	LM2575HV	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575HVSX3 A 926-LM2575HVSX33NOPB LM2575HVS-3.3/NOPB Texas Instruments 1: $6.22 268In Stock	Mfr. Part No. LM2575HVS-3.3/NOPB Mouser Part No 926-LM2575HVS3.3NOPB	Texas Instruments	Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575HVSX3 A 926-LM2575HVSX33NOPB Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	268In Stock	$6.22 $4.77 $4.41 $3.83	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	3.3 V	1 A	1 Output	10 mA	58 kHz	- 40 C	+ 125 C	LM2575HV	Tube
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576SX-5. A 926-LM2576SX-5.0NOPB LM2576S-5.0/NOPB Texas Instruments 1: $5.04 5,901In Stock	Mfr. Part No. LM2576S-5.0/NOPB Mouser Part No 926-LM2576S-5.0/NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576SX-5. A 926-LM2576SX-5.0NOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	5,901In Stock	$5.04 $3.76 $3.38 $3.13 View $3.04 $2.93 $2.86 $2.78 Quote	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	5 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574HVMX A 926-LM2574HVMX50NOPB LM2574HVM-5.0/NOPB Texas Instruments 1: $5.57 2,573In Stock	Mfr. Part No. LM2574HVM-5.0/NOPB Mouser Part No 926-LM2574HVM5.0NOPB	Texas Instruments	Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574HVMX A 926-LM2574HVMX50NOPB Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	2,573In Stock	$5.57 $4.33 $3.92 $3.76 View $3.56 $3.51 $3.43 Quote	Min.: 1 Mult.: 1	SMD/SMT	SOIC-Wide-14	Buck	5 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574HV	Tube
Switching Voltage Regulators SIMPLE SWITCHER 0.5A Step-Down Voltage R A 926-LM2574HVM3.3NOPB LM2574HVMX-3.3/NOPB Texas Instruments 1: $4.91 3,416In Stock	Mfr. Part No. LM2574HVMX-3.3/NOPB Mouser Part No 926-LM2574HVMX33NOPB	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER 0.5A Step-Down Voltage R A 926-LM2574HVM3.3NOPB Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	3,416In Stock	Cut Tape $4.91 $3.74 $3.44 $3.12 Reel $2.84 View $2.97 $2.88 $2.81 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-Wide-14	Buck	3.3 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574HV	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574MX33 A 926-LM2574MX33NOPB LM2574M-3.3/NOPB Texas Instruments 1: $3.51 2,654In Stock	Mfr. Part No. LM2574M-3.3/NOPB Mouser Part No 926-LM2574M-3.3/NOPB	Texas Instruments	Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574MX33 A 926-LM2574MX33NOPB Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	2,654In Stock	$3.51 $2.64 $2.06 $1.94 View $1.86 $1.83 $1.77	Min.: 1 Mult.: 1	SMD/SMT	SOIC-Wide-14	Buck	3.3 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574	Tube
Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574MX-5 A 926-LM2574MX-5.0NOPB LM2574M-5.0/NOPB Texas Instruments 1: $3.51 951In Stock	Mfr. Part No. LM2574M-5.0/NOPB Mouser Part No 926-LM2574M-5.0/NOPB	Texas Instruments	Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574MX-5 A 926-LM2574MX-5.0NOPB Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	951In Stock	$3.51 $2.64 $2.28 $2.17 View $2.06 $1.99 $1.94 $1.87 $1.84	Min.: 1 Mult.: 1	SMD/SMT	SOIC-Wide-14	Buck	5 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574	Tube
Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574M-5. A 926-LM2574M-5.0/NOPB LM2574MX-5.0/NOPB Texas Instruments 1: $3.00 3,891In Stock	Mfr. Part No. LM2574MX-5.0/NOPB Mouser Part No 926-LM2574MX-5.0NOPB	Texas Instruments	Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574M-5. A 926-LM2574M-5.0/NOPB Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	3,891In Stock	Cut Tape $3.00 $2.24 $2.06 $1.80 Reel $1.62 View $1.76 $1.72 $1.57 $1.54 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-Wide-14	Buck	5 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 0.5A SD Vtg Reg LM2574N-3.3/NOPB Texas Instruments 1: $4.06 880In Stock	Mfr. Part No. LM2574N-3.3/NOPB Mouser Part No 926-LM2574N-33/NOPB	Texas Instruments	Switching Voltage Regulators 0.5A SD Vtg Reg Learn More about Texas Instruments ti lm2574x voltage regulators	Datasheet	880In Stock	$4.06 $3.07 $2.72 $2.51 View $2.36 $2.31 $2.22 $2.17	Min.: 1 Mult.: 1	Through Hole	PDIP-8	Buck	3.3 V	500 mA	1 Output	5 mA	58 kHz	- 40 C	+ 125 C	LM2574	Tube
Switching Voltage Regulators 1A STEP-DOWN VLTG RE G LM2575HVT-12/NOPB Texas Instruments 1: $5.68 1,551In Stock	Mfr. Part No. LM2575HVT-12/NOPB Mouser Part No 926-LM2575HVT-12NOPB	Texas Instruments	Switching Voltage Regulators 1A STEP-DOWN VLTG RE G Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	1,551In Stock	$5.68 $4.33 $3.87 $3.58 View $3.43 $3.36 $3.29 $3.20	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	12 V	1 A	1 Output	10 mA	58 kHz	- 40 C	+ 125 C	LM2575HV	Tube
Switching Voltage Regulators 1A SD VTG Reg A 926- LM2575SX-12/NOPB A A 926-LM2575SX-12/NOPB LM2575S-12/NOPB Texas Instruments 1: $5.18 654In Stock	Mfr. Part No. LM2575S-12/NOPB Mouser Part No 926-LM2575S-12/NOPB	Texas Instruments	Switching Voltage Regulators 1A SD VTG Reg A 926- LM2575SX-12/NOPB A A 926-LM2575SX-12/NOPB Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	654In Stock	$5.18 $3.90 $3.58 $3.23 View $3.06 $3.04 $2.86 $2.79	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	12 V	1 A	1 Output	10 mA	58 kHz	- 40 C	+ 125 C	LM2575	Tube
Switching Voltage Regulators 1A STEP-DOWN VLTG RE G LM2575T-12/NOPB Texas Instruments 1: $3.90 2,083In Stock	Mfr. Part No. LM2575T-12/NOPB Mouser Part No 926-LM2575T-12/NOPB	Texas Instruments	Switching Voltage Regulators 1A STEP-DOWN VLTG RE G Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	2,083In Stock	$3.90 $2.90 $2.52 $2.37 View $2.26 $2.13 $2.07 $2.01 $1.97	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	12 V	1 A	1 Output	10 mA	52 kHz	- 40 C	+ 125 C	LM2575	Tube
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSX5 A 926-LM2576HVSX50NOPB LM2576HVS-5.0/NOPB Texas Instruments 1: $9.52 743In Stock	Mfr. Part No. LM2576HVS-5.0/NOPB Mouser Part No 926-LM2576HVS5.0NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSX5 A 926-LM2576HVSX50NOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	743In Stock	$9.52 $7.41 $6.61 $6.20 View $5.98 $5.83 $5.71 Quote	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	5 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576HV	Tube
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-M2576HVSXAD A 926-M2576HVSXADJNOPB LM2576HVS-ADJ/NOPB Texas Instruments 1: $9.52 309In Stock 1,440Expected 2026/10/08	Mfr. Part No. LM2576HVS-ADJ/NOPB Mouser Part No 926-LM2576HVSADJNOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-M2576HVSXAD A 926-M2576HVSXADJNOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	309In Stock 1,440Expected 2026/10/08	$9.52 $7.41 $6.61 $6.15 View $5.98 $5.83 $5.71 Quote	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	1.23 V to 57 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576HV	Tube
Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C A 926-LM2576HVS-12NOPB LM2576HVSX-12/NOPB Texas Instruments 1: $7.51 468In Stock 1,500Expected 2026/12/17	Mfr. Part No. LM2576HVSX-12/NOPB Mouser Part No 926-LM2576HVSX12NOPB	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C A 926-LM2576HVS-12NOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	468In Stock 1,500Expected 2026/12/17	Cut Tape $7.51 $5.80 $5.37 $4.90 Reel $4.54 View $4.64 $4.36 $4.26 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-5	Buck	12 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576HV	Reel, Cut Tape, MouseReel

LM257x SIMPLE SWITCHER® Voltage Regulators

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