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UCCx8C4x/UCCx8C4x-Q1 Current-Mode PWM Controllers

Texas Instruments UCCx8C4x/UCCx8C4x-Q1 Current-Mode PWM Controllers are enhanced BiCMOS versions with pin-for-pin compatibility to the industry standard UC28C4x family PWM controllers. These devices provide the necessary features to control fixed frequency and peak current mode power supplies. This family offers several performance advantages. These devices provide high-frequency operation up to 1MHz with low start-up and operating currents, thus minimizing start-up loss and low operating power consumption for improved efficiency. The devices also feature a fast current sense, an output delay time of 35ns, and a ±1A peak output current capability with improved rise and fall times for driving large external MOSFETs directly. The Texas Instruments UCCx8C4x-Q1 devices are AEC-Q100 qualified for automotive applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C44DGK UCC28C44DGKR Texas Instruments 1: $2.09 37,854In Stock	Mfr. Part No. UCC28C44DGKR Mouser Part No 595-UCC28C44DGKR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C44DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	37,854In Stock	Cut Tape $2.09 $1.67 $1.55 $1.43 Reel $1.26 View $1.37 $1.33 $1.31 $1.24 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
AC/DC Converters BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C45DGK UCC28C45DGKR Texas Instruments 1: $2.52 14,429In Stock	Mfr. Part No. UCC28C45DGKR Mouser Part No 595-UCC28C45DGKR	Texas Instruments	AC/DC Converters BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C45DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	14,429In Stock	Cut Tape $2.52 $1.88 $1.72 $1.54 Reel $1.24 View $1.45 $1.41 $1.38 $1.23 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers Automotive 20-V lo w -power current-mode UCC28C44QDRQ1 Texas Instruments 1: $3.33 11,424In Stock	Mfr. Part No. UCC28C44QDRQ1 Mouser Part No 595-UCC28C44QDRQ1	Texas Instruments	Switching Controllers Automotive 20-V lo w -power current-mode Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	11,424In Stock	Cut Tape $3.33 $2.50 $2.29 $2.06 Reel $1.69 View $1.95 $1.93 $1.83 $1.65 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers Auto Cat BiCMOS Lo- Pwr Crnt Mode PWM UCC28C41QDRQ1 Texas Instruments 1: $3.33 8,050In Stock	Mfr. Part No. UCC28C41QDRQ1 Mouser Part No 595-UCC28C41QDRQ1	Texas Instruments	Switching Controllers Auto Cat BiCMOS Lo- Pwr Crnt Mode PWM Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	8,050In Stock	Cut Tape $3.33 $2.50 $2.29 $2.06 Reel $1.69 View $1.95 $1.93 $1.83 $1.65 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
AC/DC Converters Mil Enh BICMOS Low- pwr Cur-Mode PWM UCC28C45MDREP Texas Instruments 1: $7.80 6,976In Stock	Mfr. Part No. UCC28C45MDREP Mouser Part No 595-UCC28C45MDREP	Texas Instruments	AC/DC Converters Mil Enh BICMOS Low- pwr Cur-Mode PWM Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	6,976In Stock	Cut Tape $7.80 $6.04 $5.59 $5.11 View Reel $4.29 $4.75 $4.61 $4.29 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40D UCC38C40DR Texas Instruments 1: $0.93 3,965In Stock	Mfr. Part No. UCC38C40DR Mouser Part No 595-UCC38C40DR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40D Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	3,965In Stock	Cut Tape $0.93 $0.669 $0.604 $0.53 View Reel $0.416 $0.497 $0.476 $0.459 $0.416 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Current 8 Pin Current Mode A A 595-UCC28C42DGK UCC28C42DGKR Texas Instruments 1: $2.52 2,693In Stock	Mfr. Part No. UCC28C42DGKR Mouser Part No 595-UCC28C42DGKR	Texas Instruments	Switching Controllers BiCMOS Low-Current 8 Pin Current Mode A A 595-UCC28C42DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	2,693In Stock	Cut Tape $2.52 $1.88 $1.72 $1.54 View Reel $1.27 $1.45 $1.40 $1.35 $1.27 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42D UCC38C42DR Texas Instruments 1: $1.05 3,261In Stock	Mfr. Part No. UCC38C42DR Mouser Part No 595-UCC38C42DR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42D Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	3,261In Stock	Cut Tape $1.05 $0.761 $0.686 $0.605 View Reel $0.477 $0.566 $0.543 $0.528 $0.477 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C43DGK UCC38C43DGKR Texas Instruments 1: $2.02 3,881In Stock	Mfr. Part No. UCC38C43DGKR Mouser Part No 595-UCC38C43DGKR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C43DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	3,881In Stock	Cut Tape $2.02 $1.88 $1.72 $1.54 Reel $1.31 View $1.45 $1.40 $1.35 $1.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C44DGK UCC38C44DGKR Texas Instruments 1: $2.54 2,209In Stock	Mfr. Part No. UCC38C44DGKR Mouser Part No 595-UCC38C44DGKR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C44DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	2,209In Stock	Cut Tape $2.54 $1.88 $1.72 $1.54 Reel $1.33 View $1.47 $1.40 $1.35 $1.31 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers Automotive 20-V lo w -power current-mode UCC28C40QDRQ1 Texas Instruments 1: $3.33 2,447In Stock	Mfr. Part No. UCC28C40QDRQ1 Mouser Part No 595-UCC28C40QDRQ1	Texas Instruments	Switching Controllers Automotive 20-V lo w -power current-mode Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	2,447In Stock	Cut Tape $3.33 $2.50 $2.29 $2.06 Reel $1.76 View $1.95 $1.93 $1.83 $1.71 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers Automotive 20-V lo w -power current-mode UCC28C42QDRQ1 Texas Instruments 1: $3.41 1,049In Stock	Mfr. Part No. UCC28C42QDRQ1 Mouser Part No 595-UCC28C42QDRQ1	Texas Instruments	Switching Controllers Automotive 20-V lo w -power current-mode Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	1,049In Stock	Cut Tape $3.41 $2.54 $2.33 $2.08 Reel $1.83 View $1.97 $1.93 $1.83 $1.80 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42DGKR UCC38C42DGK Texas Instruments 1: $4.01 955In Stock	Mfr. Part No. UCC38C42DGK Mouser Part No 595-UCC38C42DGK	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42DGKR Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	955In Stock	$4.01 $2.99 $2.73 $2.43 View $2.31 $2.26 $2.14 $2.12 $2.11	Min.: 1 Mult.: 1
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C44DGKR UCC38C44DGK Texas Instruments 1: $4.01 395In Stock	Mfr. Part No. UCC38C44DGK Mouser Part No 595-UCC38C44DGK	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C44DGKR Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	395In Stock	$4.01 $2.99 $2.73 $2.44 View $2.31 $2.20 $2.15 $2.12 $2.11	Min.: 1 Mult.: 1
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C45DGKR UCC38C45DGK Texas Instruments 1: $4.01 572In Stock	Mfr. Part No. UCC38C45DGK Mouser Part No 595-UCC38C45DGK	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C45DGKR Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	572In Stock	$4.01 $2.99 $2.73 $2.43 View $2.31 $2.11	Min.: 1 Mult.: 1
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGKR UCC38C40DGK Texas Instruments 1: $4.01 371In Stock	Mfr. Part No. UCC38C40DGK Mouser Part No 595-UCC38C40DGK	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGKR Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	371In Stock	$4.01 $2.99 $2.73 $2.43 View $2.31 $2.17 $2.14 $2.12 $2.11	Min.: 1 Mult.: 1
Switching Controllers BiCMOS Low-Power Cur rent Mode UCC28C40DGKRG4 Texas Instruments 1: $3.51 2,442In Stock New Product	Mfr. Part No. UCC28C40DGKRG4 Mouser Part No 595-UCC28C40DGKRG4 New Product	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	2,442In Stock	Cut Tape $3.51 $2.61 $2.40 $2.14 $2.04 Reel $1.72 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode UCC28C44DGKRG4 Texas Instruments 1: $3.51 2,486In Stock New Product	Mfr. Part No. UCC28C44DGKRG4 Mouser Part No 595-UCC28C44DGKRG4 New Product	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	2,486In Stock	Cut Tape $3.51 $2.61 $2.40 $2.14 $2.04 Reel $1.72	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C40DGK UCC28C40DGKR Texas Instruments 1: $2.52 1,642In Stock	Mfr. Part No. UCC28C40DGKR Mouser Part No 595-UCC28C40DGKR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C40DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	1,642In Stock	Cut Tape $2.52 $1.88 $1.72 $1.54 Reel $1.31 View $1.45 $1.40 $1.35 $1.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGK UCC38C40DGKR Texas Instruments 1: $3.50 1,320In Stock	Mfr. Part No. UCC38C40DGKR Mouser Part No 595-UCC38C40DGKR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	1,320In Stock	Cut Tape $3.50 $2.61 $2.38 $2.13 Reel $1.83 View $2.02 $1.97 $1.87 $1.78 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C40D UCC28C40DR Texas Instruments 1: $1.15 4,460In Stock	Mfr. Part No. UCC28C40DR Mouser Part No 595-UCC28C40DR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C40D Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	4,460In Stock	Cut Tape $1.15 $0.826 $0.744 $0.655 Reel $0.543 View $0.613 $0.587 $0.571 $0.53 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
AC/DC Converters Mil Enh BICMOS Low- pwr Cur-Mode PWM UCC28C43MDREP Texas Instruments 1: $9.75 2,069In Stock	Mfr. Part No. UCC28C43MDREP Mouser Part No 595-UCC28C43MDREP	Texas Instruments	AC/DC Converters Mil Enh BICMOS Low- pwr Cur-Mode PWM Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	2,069In Stock	Cut Tape $9.75 $7.59 $7.05 $6.47 View Reel $5.54 $6.13 $6.01 $5.87 $5.54 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
AC/DC Converters BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C45D UCC28C45DR Texas Instruments 1: $1.15 773In Stock 20,000Expected 2027/03/22	Mfr. Part No. UCC28C45DR Mouser Part No 595-UCC28C45DR	Texas Instruments	AC/DC Converters BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C45D Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	773In Stock 20,000Expected 2027/03/22	Cut Tape $1.15 $0.92 $0.915 Reel $0.915 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C44D UCC38C44DR Texas Instruments 1: $1.05 3,078In Stock	Mfr. Part No. UCC38C44DR Mouser Part No 595-UCC38C44DR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C44D Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	3,078In Stock	Cut Tape $1.05 $0.761 $0.686 $0.605 Reel $0.513 View $0.566 $0.543 $0.528 $0.49 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
AC/DC Converters BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C43DGK UCC28C43DGKR Texas Instruments 1: $0.90 319In Stock 5,000Expected 2026/10/29	Mfr. Part No. UCC28C43DGKR Mouser Part No 595-UCC28C43DGKR	Texas Instruments	AC/DC Converters BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC28C43DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	319In Stock 5,000Expected 2026/10/29	Cut Tape $0.90 $0.644 $0.58 $0.511 Reel $0.421 View $0.476 $0.456 $0.441 $0.415 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

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