LM5141/LM5141-Q1 Synchronous Buck Controllers

Texas Instruments LM5141/LM5141-Q1 Synchronous Buck Controllers are intended for high voltage wide VIN step-down converter applications. The control method is peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation. The LM5141 features slew rate control to simplify compliance with EMI requirements. The device has two selectable switching frequencies (2.2MHz and 440kHz). The LM5141 operates in skip cycle mode for improved low power efficiency in light or no-load conditions. This controller has a high voltage bias regulator with an automatic switch-over to an external bias to reduce the IQ current from VIN. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overload, and Power Good output. The Texas Instruments LM5141-Q1 devices are AEC-Q100 qualified for automotive applications.

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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 Topology
Number of Outputs
Switching Frequency
Duty Cycle - Max
Output Voltage
Output Current
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package/Case
Qualification
Packaging
Texas Instruments Switching Controllers Automotive wide-inpu t 2.2-MHz low-IQ sy
Datasheet
2.982In Stock
Cut Tape
Rp120.717
Rp92.464
Rp85.492
Rp77.787
View
Reel
Rp69.348
MouseReel Available
Min.: 1
Mult.: 1
: 3.000
Buck 1 Output 440 kHz, 2.2 MHz 50 % 3.3 V, 5 V, 1.5 V to 15 V 30 A - 40 C + 150 C SMD/SMT VQFN-24 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Wide Input Range Syn Buck Controller A 5 A 595-LM5141RGER
Datasheet
200In Stock
Cut Tape
Rp123.836
Rp95.032
Rp87.694
Rp79.805
Reel
Rp79.438
View
MouseReel Available
Min.: 1
Mult.: 1
: 250
Buck 1 Output 440 kHz, 2.2 MHz 99 % 3.3 V, 5 V, 1.5 V to 15 V 20 A - 40 C + 125 C SMD/SMT VQFN-24 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Low Iq Wide Input R ange Synchronous Buc A 595-LM5141RGET
Datasheet
1.165In Stock
Cut Tape
Rp101.270
Rp77.237
Rp71.182
Rp64.578
View
Reel
Rp56.322
MouseReel Available
Min.: 1
Mult.: 1
: 3.000
Buck 1 Output 440 kHz, 2.2 MHz 99 % 3.3 V, 5 V, 1.5 V to 15 V 20 A - 40 C + 125 C SMD/SMT VQFN-24 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers 2.2MHz low Iq Buck C ontroller A 595-LM5 A 595-LM5141QRGERQ1
Datasheet
5In Stock
2.000Expected 19/10/2026
Cut Tape
Rp144.200
Rp111.360
Rp103.105
Rp94.115
Reel
Rp88.244
View
MouseReel Available
Min.: 1
Mult.: 1
: 250
Buck 1 Output 440 kHz, 2.2 MHz 78 % 3.3 V, 5 V, 1.5 V to 15 V 20 A - 40 C + 150 C SMD/SMT VQFN-24 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Automotive wide-inpu t 2.2-MHz low-IQ sy A 595-LM5141QRGETQ1
Datasheet
Non-Stocked Lead-Time 16 Weeks
Cut Tape
Rp115.947
Rp88.795
Rp82.190
Rp74.668
View
Reel
Rp69.715
MouseReel Available
Min.: 1
Mult.: 1
: 3.000
Buck 1 Output 440 kHz, 2.2 MHz 78 % 3.3 V, 5 V, 1.5 V to 15 V 20 A - 40 C + 150 C SMD/SMT VQFN-24 AEC-Q100 Reel, Cut Tape, MouseReel