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 (GBP) Filter the results in the table by unit price based on your quantity.
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 Step-Up Vtg Reg A 92 6-LM2577S-ADJ/NOPB A 926-LM2577S-ADJ/NOPB
Datasheet
2,497In Stock
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
Texas Instruments Switching Voltage Regulators STEP-UP VLTG REG
Datasheet
754In Stock
1,440Expected 18/09/2026
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
Texas Instruments Switching Voltage Regulators 0.5A STEP-DOWN VLTG REG A 926-LM2574HVMX A 926-LM2574HVMX33NOPB
Datasheet
238In 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 LM2574HV Tube
Texas Instruments Switching Voltage Regulators 0.5A SD Vtg Reg
Datasheet
168In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-8 Buck 15 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-LM2574M-3.3/NOPB A 926-LM2574M-3.3/NOPB
Datasheet
408In Stock
5,000Expected 14/12/2026
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 LM2574 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 0.5A SD Vtg Reg
Datasheet
360In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-8 Buck 3.3 V 500 mA 1 Output 5 mA 58 kHz - 40 C + 125 C LM2574 Tube
Texas Instruments Switching Voltage Regulators 1A SD Vtg Reg
Datasheet
51In Stock
5,496Expected 09/09/2026
Min.: 1
Mult.: 1

SMD/SMT TO-263-5 Buck 12 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
295In Stock
1,260Expected 01/09/2026
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- LM2575S-12/NOPB A 9 A 926-LM2575S-12/NOPB
Datasheet
548In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

SMD/SMT TO-263-5 Buck 12 V 1 A 1 Output 10 mA 58 kHz - 40 C + 125 C LM2575 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re
Datasheet
228In 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 SD Vtg Reg A 926- LM2576HVSX33NOPB A A 926-LM2576HVSX33NOPB
Datasheet
98In 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 LM2576HV Tube
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G A 926-LM2576HVSX5 A 926-LM2576HVSX50NOPB
Datasheet
25In Stock
990Expected 25/08/2026
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
Datasheet
211In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 12 V 3 A 1 Output 52 kHz - 40 C + 125 C LM2576HV Tube
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C
Datasheet
171In Stock
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
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 4V to 60V 3A Low C
Datasheet
102In Stock
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
Texas Instruments Switching Voltage Regulators 3A SD Vtg Reg
Datasheet
11In Stock
1,665Expected 27/11/2026
Min.: 1
Mult.: 1

Through Hole TO-220-5 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 3A SD Vtg Reg
Datasheet
39In 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 LM2576 Tube
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone
Datasheet
349In Stock
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 SIMPLE SWITCHER® 40V 3A Low Compone
Datasheet
503In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 15 V 3 A 1 Output 52 kHz - 40 C + 125 C LM2576 Tube
Texas Instruments Switching Voltage Regulators 3A SD Vtg Reg
Datasheet
29In Stock
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
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone
Datasheet
164In Stock
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
Texas Instruments Switching Voltage Regulators 3A SD Vtg Reg
Datasheet
375In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 3.3 V 3 A 1 Output 5 mA 52 kHz - 40 C + 125 C LM2576 Tube
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone
Datasheet
523In Stock
Min.: 1
Mult.: 1

Through Hole TO-220-5 Buck 5 V 3 A 1 Output 52 kHz - 40 C + 125 C LM2576 Tube
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G
Datasheet
64In Stock
1,350Expected 08/10/2026
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