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 3A STEP-DOWN VLTG RE G A 926-LM2576SX33N A 926-LM2576SX33NOPB
Datasheet
623In Stock
Min.: 1
Mult.: 1

SMD/SMT TO-263-5 Buck 3.3 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
2.584In Stock
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
Texas Instruments Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574HVM5.0NOPB A 926-LM2574HVM5.0NOPB
Datasheet
1.967In Stock
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 LM2574HV Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574HVMADJNOPB A 926-LM2574HVMADJNOPB
Datasheet
2.210In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

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 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 0.5A SD Vtg Reg A 92 6-LM2574MX-ADJNOPB A 926-LM2574MX-ADJNOPB
Datasheet
2.041In Stock
850On Order
Min.: 1
Mult.: 1

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 Tube
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG
Datasheet
1.559In Stock
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 SIMPLE SWITCHER 1A S tep-Down Voltage Re A 926-LM2575HVS15NOPB
Datasheet
564In 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 LM2575HV Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 1A SD VTG Reg A 926- LM2575HVSADJNOPB A A 926-LM2575HVSADJNOPB
Datasheet
1.102In Stock
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
Texas Instruments Switching Voltage Regulators 1A SD VTG Reg
Datasheet
1.856In Stock
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 STEP-DOWN VLTG RE G
Datasheet
3.450In Stock
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- LM2575SX-15/NOPB A A 926-LM2575SX-15/NOPB
Datasheet
528In Stock
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-LM2575SX-5. A 926-LM2575SX-5.0NOPB
Datasheet
3.058In Stock
Min.: 1
Mult.: 1

SMD/SMT TO-263-5 Buck 5 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
Datasheet
650In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 15 V 1 A 1 Output 52 kHz - 40 C + 125 C LM2575 Tube
Texas Instruments Switching Voltage Regulators 1A STEP-DOWN VLTG RE G
Datasheet
4.971In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 5 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
1.025In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 5 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
1.516In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 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 1A STEP-DOWN VLTG RE G
Datasheet
4.184In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 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 3A SD VTG Reg
Datasheet
496In 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 LM2576HV Tube
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576SX-5. A 926-LM2576SX-5.0NOPB
Datasheet
3.404In 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 LM2576 Tube
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576SX-AD A 926-LM2576SX-ADJNOPB
Datasheet
2.115In Stock
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576S-5.0 A 926-LM2576S-5.0/NOPB
Datasheet
2.648In Stock
3.500Expected 9/7/2026
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
Texas Instruments Switching Voltage Regulators 3A SD VTG Reg A 926- LM2576S-3.3/NOPB A A 926-LM2576S-3.3/NOPB
Datasheet
1.010In 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 LM2576 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators STEP-UP VLTG REG A 9 26-LM2577SXADJNOPB A 926-LM2577SXADJNOPB
Datasheet
972In Stock
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
Texas Instruments Switching Voltage Regulators STEP-UP VLTG REG
Datasheet
757In Stock
1.440Expected 9/18/2026
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
Texas Instruments Switching Voltage Regulators 0.5A SD VTG Reg A 92 6-LM2574HVMX15NOPB A 926-LM2574HVMX15NOPB
Datasheet
201In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-Wide-14 Buck 15 V 500 mA 1 Output 5 mA 58 kHz - 40 C + 125 C LM2574HV Tube