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 (EUR) 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 3A STEP-DOWN VLTG RE G LM2576HVT-15/NOPB Texas Instruments 1: €5.93 2In Stock 1,170Expected 21/12/2026	Mfr. Part No. LM2576HVT-15/NOPB Mouser Part No 926-LM2576HVT-15NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	2In Stock 1,170Expected 21/12/2026	€5.93 €4.53 €4.04 €3.77 €3.54	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	15 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 LM2576HVT-12/LF03 Texas Instruments 1: €5.82 163In Stock	Mfr. Part No. LM2576HVT-12/LF03 Mouser Part No 926-LM2576HVT12LF03	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	163In Stock	€5.82 €4.46 €4.04 €3.74 View €3.57 €3.46 €3.37 €3.36	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	12 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 LM2576HVT-15/LF03 Texas Instruments 1: €6.46 101In Stock	Mfr. Part No. LM2576HVT-15/LF03 Mouser Part No 926-LM2576HVT15LF03	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	101In Stock	€6.46 €4.99 €4.66 €4.21 View €4.11 €4.05 €3.96	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	15 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576HV	Tube
Switching Voltage Regulators 3A SD VTG Reg LM2576HVT-5.0/LF03 Texas Instruments 1: €5.87 183In Stock	Mfr. Part No. LM2576HVT-5.0/LF03 Mouser Part No 926-LM2576HVT50LF03	Texas Instruments	Switching Voltage Regulators 3A SD VTG Reg Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	183In Stock	€5.87 €4.51 €4.13 €3.76 View €3.60 €3.54 €3.47	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	5 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576HV	Tube
Switching Voltage Regulators 3A SD Vtg Reg LM2576S-12/NOPB Texas Instruments 1: €3.63 14In Stock 2,160Expected 01/02/2027	Mfr. Part No. LM2576S-12/NOPB Mouser Part No 926-LM2576S-12/NOPB	Texas Instruments	Switching Voltage Regulators 3A SD Vtg Reg Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	14In Stock 2,160Expected 01/02/2027	€3.63 €2.74 €2.40 €2.19 View €2.11 €2.06	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	12 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576SX-AD A 926-LM2576SX-ADJNOPB LM2576S-ADJ/NOPB Texas Instruments 1: €4.33 51In Stock 2,520On Order	Mfr. Part No. LM2576S-ADJ/NOPB Mouser Part No 926-LM2576S-ADJ/NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576SX-AD A 926-LM2576SX-ADJNOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	51In Stock 2,520On Order On Order Ship Dates Mfr. No: LM2576S-ADJ/NOPB Stock: 51 Can Dispatch Immediately On Order: 1,170 Expected 23/11/2026 1,350 Expected 21/12/2026 Factory Lead Time: 26 Weeks	€4.33 €3.30 €2.91 €2.70 View €2.61 €2.52	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Buck	1.23 V to 37 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576S-5.0 A 926-LM2576S-5.0/NOPB LM2576SX-5.0/NOPB Texas Instruments 1: €3.49 66In Stock 8,500On Order	Mfr. Part No. LM2576SX-5.0/NOPB Mouser Part No 926-LM2576SX-5.0NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576S-5.0 A 926-LM2576S-5.0/NOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	66In Stock 8,500On Order On Order Ship Dates Mfr. No: LM2576SX-5.0/NOPB Stock: 66 Can Dispatch Immediately On Order: 3,500 Expected 21/12/2026 5,000 Expected 01/04/2027 Factory Lead Time: 26 Weeks	Cut Tape €3.49 €2.64 €2.43 €2.15 €2.04 Reel €1.97 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-5	Buck	5 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576S-ADJ A 926-LM2576S-ADJ/NOPB LM2576SX-ADJ/NOPB Texas Instruments 1: €3.49 22In Stock 4,000Expected 01/04/2027	Mfr. Part No. LM2576SX-ADJ/NOPB Mouser Part No 926-LM2576SX-ADJNOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576S-ADJ A 926-LM2576S-ADJ/NOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	22In Stock 4,000Expected 01/04/2027	Cut Tape €3.49 €2.64 €2.43 €2.15 €2.04 Reel €1.97 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-5	Buck	1.23 V to 37 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3A SD VTG Reg A 926- LM2576S-3.3/NOPB A A 926-LM2576S-3.3/NOPB LM2576SX-3.3/NOPB Texas Instruments 1: €3.53 466In Stock 1,500Expected 28/01/2027	Mfr. Part No. LM2576SX-3.3/NOPB Mouser Part No 926-LM2576SX33NOPB	Texas Instruments	Switching Voltage Regulators 3A SD VTG Reg A 926- LM2576S-3.3/NOPB A A 926-LM2576S-3.3/NOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	466In Stock 1,500Expected 28/01/2027	Cut Tape €3.53 €2.66 €2.44 €2.20 Reel €2.05 View €2.09 €1.94 €1.89 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-5	Buck	3.3 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone LM2576T-12/LF03 Texas Instruments 1: €3.42 69In Stock 540Expected 21/12/2026	Mfr. Part No. LM2576T-12/LF03 Mouser Part No 926-LM2576T-12/LF03	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	69In Stock 540Expected 21/12/2026	€3.42 €2.59 €2.27 €2.10 View €2.02 €1.94 €1.85 €1.81	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	12 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G LM2576T-12/NOPB Texas Instruments 1: €3.33 69In Stock 1,350On Order	Mfr. Part No. LM2576T-12/NOPB Mouser Part No 926-LM2576T-12/NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	69In Stock 1,350On Order On Order Ship Dates Mfr. No: LM2576T-12/NOPB Stock: 69 Can Dispatch Immediately On Order: 450 Expected 12/11/2026 900 Expected 26/11/2026 Factory Lead Time: 26 Weeks	€3.33 €2.46 €2.19 €2.00 View €1.91 €1.84	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	12 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone LM2576T-15/LF03 Texas Instruments 1: €3.44 500In Stock	Mfr. Part No. LM2576T-15/LF03 Mouser Part No 926-LM2576T-15/LF03	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	500In Stock	€3.44 €2.59 €2.15 €1.98 View €1.94 €1.80 €1.76	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	15 V	3 A	1 Output		52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators 3A SD Vtg Reg LM2576T-15/NOPB Texas Instruments 1: €3.25 541In Stock	Mfr. Part No. LM2576T-15/NOPB Mouser Part No 926-LM2576T-15/NOPB	Texas Instruments	Switching Voltage Regulators 3A SD Vtg Reg Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	541In Stock	€3.25 €2.43 €2.19 €1.98 View €1.87 €1.83 €1.74 €1.69 €1.65	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	15 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone LM2576T-3.3/LF03 Texas Instruments 1: €3.25 80In Stock 540Expected 21/12/2026	Mfr. Part No. LM2576T-3.3/LF03 Mouser Part No 926-LM2576T-33/LF03	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	80In Stock 540Expected 21/12/2026	€3.25 €2.43 €2.22 €1.98 View €1.87 €1.76 €1.69 €1.67 €1.65	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	3.3 V	3 A	1 Output		52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone LM2576T-5.0/LF02 Texas Instruments 1: €3.53 372In Stock	Mfr. Part No. LM2576T-5.0/LF02 Mouser Part No 926-LM2576T-50/LF02	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	372In Stock	€3.53 €2.66 €2.39 €2.18 View €2.08 €2.00 €1.91 €1.87	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	5 V	3 A	1 Output		52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators 3A SD Vtg Reg LM2576T-5.0/LF03 Texas Instruments 1: €3.14 451In Stock	Mfr. Part No. LM2576T-5.0/LF03 Mouser Part No 926-LM2576T-50/LF03	Texas Instruments	Switching Voltage Regulators 3A SD Vtg Reg Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	451In Stock	€3.14 €2.37 €2.22 €1.92 View €1.84 €1.78 €1.74 €1.69 €1.65	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	5 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone LM2576T-ADJ/LF02 Texas Instruments 1: €3.42 394In 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	394In Stock	€3.42 €2.59 €2.27 €2.10 View €2.02 €1.95 €1.87 €1.82	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 3A STEP-DOWN VLTG RE G LM2576T-ADJ/NOPB Texas Instruments 1: €3.14 149In Stock 2,250Expected 15/04/2027	Mfr. Part No. LM2576T-ADJ/NOPB Mouser Part No 926-LM2576T-ADJ/NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	149In Stock 2,250Expected 15/04/2027	€3.14 €2.37 €2.07 €1.93 View €1.85 €1.79	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	1.23 V to 37 V	3 A	1 Output	5 mA	52 kHz	- 40 C	+ 125 C	LM2576	Tube
Switching Voltage Regulators STEP-UP VLTG REG A 9 26-LM2577SXADJNOPB A 926-LM2577SXADJNOPB LM2577S-ADJ/NOPB Texas Instruments 1: €10.86 19In Stock 3,915On Order	Mfr. Part No. LM2577S-ADJ/NOPB Mouser Part No 926-LM2577S-ADJ/NOPB	Texas Instruments	Switching Voltage Regulators STEP-UP VLTG REG A 9 26-LM2577SXADJNOPB A 926-LM2577SXADJNOPB Learn More about Texas Instruments ti lm2577x voltage regulators	Datasheet	19In Stock 3,915On Order On Order Ship Dates Mfr. No: LM2577S-ADJ/NOPB Stock: 19 Can Dispatch Immediately On Order: 1,890 Expected 21/12/2026 2,025 Expected 10/05/2027 Factory Lead Time: 26 Weeks	€10.86 €8.53 €7.65 €7.20 €6.66	Min.: 1 Mult.: 1	SMD/SMT	TO-263-5	Boost, Flyback	11.6 V to 12.4 V	3 A	1 Output		48 kHz to 56 kHz	- 40 C	+ 125 C	LM2577	Tube
Switching Voltage Regulators Step-Up Vtg Reg A 92 6-LM2577S-ADJ/NOPB A 926-LM2577S-ADJ/NOPB LM2577SX-ADJ/NOPB Texas Instruments 1: €9.75 22In Stock 6,500Expected 15/04/2027	Mfr. Part No. LM2577SX-ADJ/NOPB Mouser Part No 926-LM2577SXADJNOPB	Texas Instruments	Switching Voltage Regulators Step-Up Vtg Reg A 92 6-LM2577S-ADJ/NOPB A 926-LM2577S-ADJ/NOPB Learn More about Texas Instruments ti lm2577x voltage regulators	Datasheet	22In Stock 6,500Expected 15/04/2027	Cut Tape €9.75 €7.62 €6.70 €6.14 €5.87 Reel €5.72 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-5	Boost, Flyback	11.6 V to 12.4 V	3 A	1 Output		48 kHz to 56 kHz	- 40 C	+ 125 C	LM2577	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3.5-V to 40-V 3-A l ow component count s LM2577T-ADJ/LF03 Texas Instruments 1: €8.44 42In Stock 225Expected 21/12/2026	Mfr. Part No. LM2577T-ADJ/LF03 Mouser Part No 926-LM2577T-ADJ/LF03	Texas Instruments	Switching Voltage Regulators 3.5-V to 40-V 3-A l ow component count s Learn More about Texas Instruments ti lm2577x voltage regulators	Datasheet	42In Stock 225Expected 21/12/2026	€8.44 €6.58 €5.87 €5.50 €5.33	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Boost, Flyback	11.6 V to 12.4 V	3 A	1 Output		48 kHz to 56 kHz	- 40 C	+ 125 C	LM2577	Tube
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSAD A 926-LM2576HVSADJNOPB LM2576HVSX-ADJ/NOPB Texas Instruments 1: €7.03 647In Stock 9,500On Order	Mfr. Part No. LM2576HVSX-ADJ/NOPB Mouser Part No 926-M2576HVSXADJNOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSAD A 926-LM2576HVSADJNOPB Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	647In Stock 9,500On Order On Order Ship Dates Mfr. No: LM2576HVSX-ADJ/NOPB Stock: 647 Can Dispatch Immediately On Order: 4,000 Expected 21/12/2026 5,500 Expected 04/01/2027 Factory Lead Time: 26 Weeks	Cut Tape €7.03 €5.56 €5.16 €4.62 €4.51 Reel €4.28 MouseReel Available	Min.: 1 Mult.: 1 : 500	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	Reel, Cut Tape, MouseReel
Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re LM2575T-ADJ/LF02 Texas Instruments 1: €3.53 110In Stock	Mfr. Part No. LM2575T-ADJ/LF02 Mouser Part No 926-LM2575T-ADJ/LF02	Texas Instruments	Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	110In Stock	€3.53 €2.67 €2.34 €2.17 View €2.07 €2.06 €1.96 €1.92	Min.: 1 Mult.: 1	Through Hole	TO-220-5	Buck	1.23 V to 37 V	1 A	1 Output		52 kHz	- 40 C	+ 125 C	LM2575	Tube
Switching Voltage Regulators 1A SD VTG Reg A 926- LM2575HVSADJNOPB A A 926-LM2575HVSADJNOPB LM2575HVSX-ADJ/NOPB Texas Instruments 1: €4.73 5,985On Order	Mfr. Part No. LM2575HVSX-ADJ/NOPB Mouser Part No 926-LM2575HVSXADJNPB	Texas Instruments	Switching Voltage Regulators 1A SD VTG Reg A 926- LM2575HVSADJNOPB A A 926-LM2575HVSADJNOPB Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	5,985On Order On Order Ship Dates Mfr. No: LM2575HVSX-ADJ/NOPB Stock: 0 On Order: 985 Expected 25/03/2027 1,500 Expected 09/04/2027 3,500 Expected 22/04/2027 Factory Lead Time: 26 Weeks	Cut Tape €4.73 €3.60 €3.33 €3.02 €2.88 Reel €2.82 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-5	Buck	1.23 V to 57 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-LM2575S-5.0 A 926-LM2575S-5.0/NOPB LM2575SX-5.0/NOPB Texas Instruments 1: €3.53 8,709On Order	Mfr. Part No. LM2575SX-5.0/NOPB Mouser Part No 926-LM2575SX-5.0NOPB	Texas Instruments	Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575S-5.0 A 926-LM2575S-5.0/NOPB Learn More about Texas Instruments ti lm2575x voltage regulators	Datasheet	8,709On Order On Order Ship Dates Mfr. No: LM2575SX-5.0/NOPB Stock: 0 On Order: 3,709 Expected 14/01/2027 5,000 Expected 31/05/2027 Factory Lead Time: 26 Weeks	Cut Tape €3.53 €2.73 €2.50 €2.22 €2.11 Reel €2.04 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TO-263-5	Buck	5 V	1 A	1 Output	10 mA	58 kHz	- 40 C	+ 125 C	LM2575	Reel, Cut Tape, MouseReel

LM257x SIMPLE SWITCHER® Voltage Regulators

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