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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Qty. RoHS ECAD Model Mounting Style
Package / Case
Topology
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 STEP-DOWN VLTG REG A 926-LM2574HVMX A 926-LM2574HVMXADJNPB
Datasheet
19,938In Stock
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

Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG
Datasheet
5,254In Stock
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
Texas Instruments Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574HVM15NOPB A A 926-LM2574HVM15NOPB
Datasheet
644In Stock
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
Texas Instruments Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574M-12/NOPB A A 926-LM2574M-12/NOPB
Datasheet
1,848In Stock
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 LM2574 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575SX-AD A 926-LM2575SX-ADJNOPB
Datasheet
2,178In Stock
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
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re A 926-LM2575M-ADJ/NOPB
Datasheet
949In Stock
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

Texas Instruments Switching Voltage Regulators 0.5A SD Vtg Reg
Datasheet
849In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-8 Buck 12 V 500 mA 1 Output 5 mA 58 kHz - 40 C + 125 C LM2574 Tube
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re
Datasheet
205In Stock
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
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone
Datasheet
433In Stock
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
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575HVSX3 A 926-LM2575HVSX33NOPB
Datasheet
268In 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 LM2575HV Tube
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re A 926-LM2575HVS3.3NOPB
Datasheet
444In Stock
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSX1 A 926-LM2576HVSX12NOPB
Datasheet
6,907In Stock
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
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575HVSX5 A 926-LM2575HVSX50NOPB
Datasheet
5,924In Stock
Min.: 1
Mult.: 1

SMD/SMT TO-263-5 Buck 5 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574HVMX A 926-LM2574HVMX50NOPB
Datasheet
2,572In Stock
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
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 0.5A Step-Down Voltage R A 926-LM2574HVM3.3NOPB
Datasheet
3,416In Stock
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
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574MX33 A 926-LM2574MX33NOPB
Datasheet
2,812In Stock
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
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574MX-5 A 926-LM2574MX-5.0NOPB
Datasheet
956In Stock
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
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574M-5. A 926-LM2574M-5.0/NOPB
Datasheet
1,088In Stock
3,000Expected 10/6/2026
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
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G
Datasheet
1,551In Stock
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
Texas Instruments Switching Voltage Regulators 1A SD VTG Reg A 926- LM2575SX-12/NOPB A A 926-LM2575SX-12/NOPB
Datasheet
654In Stock
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
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G
Datasheet
2,302In Stock
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSX5 A 926-LM2576HVSX50NOPB
Datasheet
753In Stock
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-M2576HVSXAD A 926-M2576HVSXADJNOPB
Datasheet
525In Stock
1,440Expected 12/21/2026
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
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C A 926-LM2576HVS-12NOPB
Datasheet
868In Stock
1,500Expected 12/17/2026
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
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C A 926-LM2576HVS33NOPB
Datasheet
1,273In Stock
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 LM2576HV Reel, Cut Tape, MouseReel