LMR1420x SIMPLE SWITCHER® Step-Down Regulators

Texas Instruments LMR1420x SIMPLE SWITCHER® Step-Down Regulators are PWM DC/DC buck (step-down) regulators with a wide input range of 4.5V to 42V. These devices are suitable for a range of applications such as power conditioning from unregulated sources. These voltage regulators feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25MHz, allowing the use of small external components while still enabling low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit, allowing the user to tailor the soft-start time to a specific application. 

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Description Datasheet Availability Pricing (EUR) 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 SIMPLE SWITCHER 42 V in 0.3A SD Vltg Reg A 926-LMR14203XMKENOPB
Datasheet
3.153In Stock
13.000Expected 11/19/2026
Cut Tape
3,00 €
2,25 €
2,06 €
1,86 €
Reel
1,63 €
View
MouseReel Available
Min.: 1
Mult.: 1
: 1.000
SMD/SMT SOT-23-THIN-6 Buck 765 mV to 34 V 300 mA 1 Output 16 uA 1.25 MHz - 40 C + 125 C LMR14203 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 42 V in 0.3A SD Vltg Reg A 926-LMR14203XMK/NOPB
Datasheet
630In Stock
Cut Tape
2,86 €
2,15 €
1,97 €
1,77 €
Reel
1,65 €
View
MouseReel Available
Min.: 1
Mult.: 1
: 250
SMD/SMT SOT-23-THIN-6 Buck 765 mV to 34 V 300 mA 1 Output 1.25 MHz - 40 C + 125 C LMR14203 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 42 V in 0.3A SD Vltg Reg A 926-LMR14203XMKENOPB
Datasheet
96In Stock
12.000Expected 12/14/2026
Cut Tape
2,43 €
1,81 €
1,66 €
1,49 €
Reel
1,26 €
View
MouseReel Available
Min.: 1
Mult.: 1
: 3.000
SMD/SMT SOT-23-THIN-6 Buck 765 mV to 34 V 300 mA 1 Output 1.25 MHz - 40 C + 125 C LMR14203 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 42 V in 0.6A SD Vltg Reg A 926-LMR14206XMKENOPB
Datasheet
85In Stock
10.000Expected 11/19/2026
Cut Tape
2,60 €
1,95 €
1,78 €
1,61 €
Reel
1,38 €
View
MouseReel Available
Min.: 1
Mult.: 1
: 1.000
SMD/SMT SOT-23-THIN-6 Buck 765 mV to 34 V 600 mA 1 Output 16 uA 1.25 MHz - 40 C + 125 C LMR14206 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 42 V in 0.6A SD Vltg Reg A 926-LMR14206XMKENOPB
Datasheet
714In Stock
6.000Expected 4/1/2027
Cut Tape
2,30 €
1,75 €
1,60 €
1,44 €
Reel
1,14 €
View
MouseReel Available
Min.: 1
Mult.: 1
: 3.000
SMD/SMT SOT-23-THIN-6 Buck 765 mV to 34 V 600 mA 1 Output 1.25 MHz - 40 C + 125 C LMR14206 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators SIMPLE SWITCHER 42 V in 0.6A SD Vltg Reg A 926-LMR14206XMK/NOPB
Datasheet
14.751Expected 11/19/2026
Cut Tape
2,42 €
1,95 €
1,78 €
1,61 €
Reel
1,51 €
View
MouseReel Available
Min.: 1
Mult.: 1
: 250
SMD/SMT SOT-23-THIN-6 Buck 765 mV to 34 V 600 mA 1 Output 1.25 MHz - 40 C + 125 C LMR14206 Reel, Cut Tape, MouseReel