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 (IDR) 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 STEP-DOWN VLTG REG
Datasheet
520In Stock
1.120Expected 12/08/2026
Min.: 1
Mult.: 1

Through Hole PDIP-8 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
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 03/09/2026
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 A 926- LM2575HVS5.0NOPB A A 926-LM2575HVS5.0NOPB
Datasheet
523In Stock
1.520On Order
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 LM2575HV Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 1A SD Vtg Reg
Datasheet
62In 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
173In 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
540Expected 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 STEP-DOWN VLTG RE G
Datasheet
257In 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
592In 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 SD VTG Reg A 926- LM2575SX-15/NOPB A A 926-LM2575SX-15/NOPB
Datasheet
78In Stock
450Expected 10/08/2026
Min.: 1
Mult.: 1

SMD/SMT TO-263-5 Buck, Inverting 15 V 1 A 1 Output 58 kHz - 40 C + 125 C LM2575 Tube
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G A 926-LM2575SX33N A 926-LM2575SX33NOPB
Datasheet
497In 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
500Expected 21/12/2026
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
338In Stock
360Expected 21/12/2026
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
66In 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
347In 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
569In Stock
1.350Expected 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 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
Texas Instruments Switching Voltage Regulators 3.5-V to 40-V 3-A l ow component count s
Datasheet
241In Stock
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