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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Description Datasheet Availability Pricing (DKK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
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Output Voltage
Output Current
Number of Outputs
Quiescent Current
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Texas Instruments Switching Voltage Regulators 0.5A SD VTG Reg
Datasheet
90In Stock
240Expected 17/12/2026
Min.: 1
Mult.: 1

Through Hole PDIP-8 Buck 12 V 500 mA 1 Output 5 mA 58 kHz - 40 C + 125 C LM2574HV Tube
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG
Datasheet
26In Stock
280Expected 14/08/2026
Min.: 1
Mult.: 1

Through Hole PDIP-8 Buck 1.23 V to 57 V 500 mA 1 Output 5 mA 58 kHz - 40 C + 125 C LM2574HV Tube
Texas Instruments Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574MX-12/NOPB A 926-LM2574MX-12/NOPB
Datasheet
450In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-Wide-14 Buck 12 V 500 mA 1 Output 5 mA 58 kHz - 40 C + 125 C LM2574 Tube
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574M-AD A 926-LM2574M-ADJ/NOPB
Datasheet
90In Stock
6.000Expected 01/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

SMD/SMT SOIC-Wide-14 Buck 1.23 V to 37 V 500 mA 1 Output 5 mA 58 kHz - 40 C + 125 C LM2574 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG
Datasheet
5In Stock
2.200Expected 26/08/2026
Min.: 1
Mult.: 1

Through Hole PDIP-8 Buck 1.23 V to 37 V 500 mA 1 Output 5 mA 58 kHz - 40 C + 125 C LM2574 Tube
Texas Instruments Switching Voltage Regulators 1A SD Vtg Reg A 926- LM2575HVSX15NOPB A A 926-LM2575HVSX15NOPB
Datasheet
104In Stock
Min.: 1
Mult.: 1

SMD/SMT TO-263-5 Buck 15 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575HVSXA A 926-LM2575HVSXADJNPB
Datasheet
204In Stock
225Expected 31/08/2026
Min.: 1
Mult.: 1

SMD/SMT TO-263-5 Buck 1.23 V to 57 V 1 A 1 Output 10 mA 52 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators 1A SD Vtg Reg
Datasheet
66In Stock
1.035On Order
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 15 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G
Datasheet
174In Stock
855Expected 18/08/2026
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 5 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators 1A SD VTG Reg
Datasheet
204In Stock
1.170On Order
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 5 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G
Datasheet
255In Stock
3.195Expected 17/08/2026
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 1.23 V to 57 V 1 A 1 Output 10 mA 52 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators 1A SD Vtg Reg A 926- LM2575MX50NOPB A 92 A 926-LM2575MX50NOPB
Datasheet
551In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-24 Buck 5 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575 Tube
Texas Instruments Switching Voltage Regulators 1A SD VTG Reg A 926- LM2575M-50/NOPB A 9 A 926-LM2575M-50/NOPB
Datasheet
540In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

SMD/SMT SOIC-24 Buck, Inverting 5 V 1 A 1 Output 58 kHz - 40 C + 125 C LM2575 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575SX33N A 926-LM2575SX33NOPB
Datasheet
501In Stock
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 LM2575 Tube
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re A 926-LM2575S-15/NOPB
Datasheet
603In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

SMD/SMT TO-263-5 Buck 15 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575S-ADJ A 926-LM2575S-ADJ/NOPB
Datasheet
622In Stock
2.500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 500

SMD/SMT TO-263-5 Buck 1.23 V to 37 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 1A SD VTG Reg A 926- LM2575S-3.3/NOPB A A 926-LM2575S-3.3/NOPB
Datasheet
116In Stock
1.000On Order
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 LM2575 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G
Datasheet
545In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 15 V 1 A 1 Output 10 mA 52 kHz - 40 C + 125 C LM2575 Tube
Texas Instruments Switching Voltage Regulators 1A SD VTG Reg
Datasheet
375In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 3.3 V 1 A 1 Output 52 kHz - 40 C + 125 C LM2575 Tube
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re
Datasheet
110In Stock
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G
Datasheet
257In Stock
360Expected 31/08/2026
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576S-ADJ A 926-LM2576S-ADJ/NOPB
Datasheet
411In Stock
4.000Expected 21/12/2026
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G
Datasheet
449In Stock
450Expected 19/11/2026
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G
Datasheet
568In Stock
1.350Expected 14/09/2026
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
Texas Instruments Switching Voltage Regulators 3A SD Vtg Reg
Datasheet
616In Stock
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