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 (JPY) 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 SIMPLE SWITCHER® 4V to 60V 3A Low C A 926-LM2576HVS-12NOPB LM2576HVSX-12/NOPB Texas Instruments 1: ¥1,247.4 210In Stock 1,500Expected 12/17/2026	Mfr. Part # LM2576HVSX-12/NOPB Mouser Part # 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	210In Stock 1,500Expected 12/17/2026	Cut Tape ¥1,247.4 ¥963.4 ¥892 ¥813.9 ¥780.7 Reel ¥725.9 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
Switching Voltage Regulators 3A STEP-DOWN VLTG RE G LM2576HVT-15/NOPB Texas Instruments 1: ¥1,144.4 3In Stock 1,170Expected 12/21/2026	Mfr. Part # LM2576HVT-15/NOPB Mouser Part # 926-LM2576HVT-15NOPB	Texas Instruments	Switching Voltage Regulators 3A STEP-DOWN VLTG RE G Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	3In Stock 1,170Expected 12/21/2026	¥1,144.4 ¥875.3 ¥780.7 ¥727.5 ¥684.3	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: ¥1,124.5 163In Stock	Mfr. Part # LM2576HVT-12/LF03 Mouser Part # 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	¥1,124.5 ¥862.1 ¥780.7 ¥722.5 View ¥689.3 ¥667.7 ¥651.1 ¥649.5	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: ¥1,247.4 101In Stock	Mfr. Part # LM2576HVT-15/LF03 Mouser Part # 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	¥1,247.4 ¥963.4 ¥900.3 ¥813.9 View ¥794 ¥782.3 Quote	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: ¥1,134.5 183In Stock	Mfr. Part # LM2576HVT-5.0/LF03 Mouser Part # 926-LM2576HVT50LF03	Texas Instruments	Switching Voltage Regulators 3A SD VTG Reg Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	183In Stock	¥1,134.5 ¥870.4 ¥797.3 ¥725.9 View ¥696 ¥684.3 ¥667.7 ¥651.1	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: ¥700.9 28In Stock 2,160Expected 2/1/2027	Mfr. Part # LM2576S-12/NOPB Mouser Part # 926-LM2576S-12/NOPB	Texas Instruments	Switching Voltage Regulators 3A SD Vtg Reg Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	28In Stock 2,160Expected 2/1/2027	¥700.9 ¥529.9 ¥463.4 ¥423.6 View ¥406.9 ¥397	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: ¥835.5 51In Stock 2,520On Order	Mfr. Part # LM2576S-ADJ/NOPB Mouser Part # 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. #: LM2576S-ADJ/NOPB Stock: 51 Can Ship Immediately On Order: 1,170 Expected 11/23/2026 1,350 Expected 12/21/2026 Factory Lead-Time: 26 Weeks	¥835.5 ¥637.8 ¥561.4 ¥521.6 View ¥503.3 ¥486.7	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: ¥674.4 66In Stock 8,500On Order	Mfr. Part # LM2576SX-5.0/NOPB Mouser Part # 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. #: LM2576SX-5.0/NOPB Stock: 66 Can Ship Immediately On Order: 3,500 Expected 12/21/2026 5,000 Expected 4/1/2027 Factory Lead-Time: 26 Weeks	Cut Tape ¥674.4 ¥509.9 ¥468.4 ¥415.3 ¥393.7 Reel ¥380.4 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: ¥674.4 22In Stock 4,000Expected 4/1/2027	Mfr. Part # LM2576SX-ADJ/NOPB Mouser Part # 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 4/1/2027	Cut Tape ¥674.4 ¥509.9 ¥468.4 ¥415.3 ¥393.7 Reel ¥380.4 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: ¥681 466In Stock 1,500Expected 1/28/2027	Mfr. Part # LM2576SX-3.3/NOPB Mouser Part # 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 1/28/2027	Cut Tape ¥681 ¥513.2 ¥471.7 ¥425.2 Reel ¥395.3 View ¥403.6 ¥373.7 ¥365.4 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: ¥661.1 69In Stock 540Expected 12/21/2026	Mfr. Part # LM2576T-12/LF03 Mouser Part # 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 12/21/2026	¥661.1 ¥500 ¥438.5 ¥405.3 View ¥390.3 ¥375.4 ¥357.1 ¥348.8	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: ¥642.8 69In Stock 1,350On Order	Mfr. Part # LM2576T-12/NOPB Mouser Part # 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. #: LM2576T-12/NOPB Stock: 69 Can Ship Immediately On Order: 450 Expected 11/12/2026 900 Expected 11/26/2026 Factory Lead-Time: 26 Weeks	¥642.8 ¥475 ¥423.6 ¥387 View ¥368.7 ¥355.5	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: ¥664.4 500In Stock	Mfr. Part # LM2576T-15/LF03 Mouser Part # 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	¥664.4 ¥500 ¥415.3 ¥382 View ¥375.4 ¥347.1 ¥340.5	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: ¥627.9 541In Stock	Mfr. Part # LM2576T-15/NOPB Mouser Part # 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	¥627.9 ¥468.4 ¥423.6 ¥382 View ¥362.1 ¥353.8 ¥335.5 ¥325.6 ¥318.9	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: ¥627.9 80In Stock 540Expected 12/21/2026	Mfr. Part # LM2576T-3.3/LF03 Mouser Part # 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 12/21/2026	¥627.9 ¥468.4 ¥428.5 ¥382 View ¥362.1 ¥340.5 ¥327.2 ¥322.2 ¥318.9	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: ¥681 372In Stock	Mfr. Part # LM2576T-5.0/LF02 Mouser Part # 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	¥681 ¥513.2 ¥461.8 ¥420.2 View ¥402 ¥385.4 ¥368.7 ¥360.4	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: ¥606.3 439In Stock	Mfr. Part # LM2576T-5.0/LF03 Mouser Part # 926-LM2576T-50/LF03	Texas Instruments	Switching Voltage Regulators 3A SD Vtg Reg Learn More about Texas Instruments ti lm2576x voltage regulators	Datasheet	439In Stock	¥606.3 ¥456.8 ¥428.5 ¥370.4 View ¥355.5 ¥343.8 ¥335.5 ¥325.6 ¥318.9	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: ¥661.1 393In Stock	Mfr. Part # LM2576T-ADJ/LF02 Mouser Part # 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	393In Stock	¥661.1 ¥500 ¥438.5 ¥405.3 View ¥390.3 ¥377 ¥360.4 ¥352.1	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: ¥606.3 149In Stock 2,250Expected 4/15/2027	Mfr. Part # LM2576T-ADJ/NOPB Mouser Part # 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 4/15/2027	¥606.3 ¥456.8 ¥400.3 ¥372.1 View ¥357.1 ¥345.5	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: ¥2,097.8 19In Stock 3,915On Order	Mfr. Part # LM2577S-ADJ/NOPB Mouser Part # 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. #: LM2577S-ADJ/NOPB Stock: 19 Can Ship Immediately On Order: 1,890 Expected 12/21/2026 2,025 Expected 5/10/2027 Factory Lead-Time: 26 Weeks	¥2,097.8 ¥1,647.7 ¥1,476.6 ¥1,390.3 ¥1,285.6	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: ¥1,883.6 22In Stock 6,500Expected 4/15/2027	Mfr. Part # LM2577SX-ADJ/NOPB Mouser Part # 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 4/15/2027	Cut Tape ¥1,883.6 ¥1,471.6 ¥1,293.9 ¥1,186 ¥1,134.5 Reel ¥1,104.6 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: ¥1,629.4 27In Stock 225Expected 12/21/2026	Mfr. Part # LM2577T-ADJ/LF03 Mouser Part # 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	27In Stock 225Expected 12/21/2026	¥1,629.4 ¥1,270.7 ¥1,132.8 ¥1,063 ¥1,029.8	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: ¥1,358.7 30In Stock 10,490On Order	Mfr. Part # LM2576HVSX-ADJ/NOPB Mouser Part # 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	30In Stock 10,490On Order On Order Ship Dates Mfr. #: LM2576HVSX-ADJ/NOPB Stock: 30 Can Ship Immediately On Order: 990 Expected 11/13/2026 4,000 Expected 12/21/2026 5,500 Expected 1/4/2027 Factory Lead-Time: 26 Weeks	Cut Tape ¥1,358.7 ¥1,074.7 ¥996.6 ¥892 ¥870.4 Reel ¥827.2 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: ¥681 110In Stock	Mfr. Part # LM2575T-ADJ/LF02 Mouser Part # 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	¥681 ¥514.9 ¥451.8 ¥418.6 View ¥400.3 ¥398.6 ¥378.7 ¥370.4	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: ¥913.6 5,985On Order	Mfr. Part # LM2575HVSX-ADJ/NOPB Mouser Part # 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. #: LM2575HVSX-ADJ/NOPB Stock: 0 On Order: 985 Expected 3/25/2027 1,500 Expected 4/9/2027 3,500 Expected 4/22/2027 Factory Lead-Time: 26 Weeks	Cut Tape ¥913.6 ¥696 ¥642.8 ¥583 ¥556.4 Reel ¥544.8 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

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LM257x SIMPLE SWITCHER® Voltage Regulators

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