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
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 SD VTG Reg
Datasheet
226In Stock
1.080Expected 02/03/2026
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
Texas Instruments Switching Voltage Regulators 3A STEP-DOWN VLTG RE G
Datasheet
411In Stock
900Expected 09/04/2026
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
Texas Instruments Switching Voltage Regulators 3.5-V to 40-V 3-A l ow component count s
Datasheet
77In 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
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER® 40V 3A Low Compone
Datasheet
210In 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 0.5A STEP-DOWN VLTG REG
Datasheet
316Expected 19/02/2026
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 STEP-DOWN VLTG RE G
Datasheet
360Expected 09/03/2026
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 SIMPLE SWITCHER 1A S tep-Down Voltage Re
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000
Reel: 1.000

SMD/SMT SOIC-24 Buck 5 V 1 A 1 Output 58 kHz - 40 C + 125 C LM2575HV Reel
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 225
Mult.: 45

Through Hole TO-220-5 Buck 15 V 1 A 1 Output 58 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 1A S tep-Down Voltage Re
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 540
Mult.: 45

Through Hole TO-220-5 Buck 3.3 V 1 A 1 Output 58 kHz - 40 C + 125 C LM2575HV Tube
Texas Instruments Switching Voltage Regulators 1A SD VTG Reg
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 225
Mult.: 45

Through Hole TO-220-5 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
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 360
Mult.: 45

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® 4V to 60V 3A Low C
Datasheet
Non-Stocked Lead-Time 6 Weeks
Min.: 180
Mult.: 45

Through Hole TO-220-5 Buck 5 V 3 A 1 Output 52 kHz - 40 C + 125 C LM2576HV Tube