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TL43xLI/TL43xLI-Q1 Programmable Shunt Regulators

Texas Instruments TL43xLI/TL43xLI-Q1 Programmable Shunt Regulators are three-terminal adjustable shunt regulators with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between V_ref (approximately 2.495V) and 36V, with two external resistors. These devices have a typical output impedance of 0.3Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications. These applications include onboard regulation, adjustable power and switching power supplies. These devices are a pin-to-pin alternative to the industry standard TL431, with optimized I_ref and I_Idev performance. The lower I_ref and I_Idev values enable designers to achieve higher system accuracy and lower leakage current. The TL432LI/TL432LI-Q1 device has precisely the same functionality and electrical specifications as the TL431LI/TL431LI-Q1 device but has a different pinout for the DBZ package.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Reference Type	Output Voltage	Initial Accuracy	Temperature Coefficient	Series VREF - Input Voltage - Max	Shunt Current - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Voltage References Adjustable precision shunt regulator wit TL431LIACDBZR Texas Instruments 1: $0.346 59,708In Stock	Mfr. Part # TL431LIACDBZR Mouser Part # 595-TL431LIACDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	59,708In Stock	Cut Tape $0.346 $0.235 $0.207 $0.179 Reel $0.138 View $0.164 $0.156 $0.148 $0.134 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Automotive adjustab le precision shunt TL432LIBEDBZRQ1 Texas Instruments 1: $1.28 2,677In Stock	Mfr. Part # TL432LIBEDBZRQ1 Mouser Part # 595-TL432LIBEDBZRQ1	Texas Instruments	Voltage References Automotive adjustab le precision shunt Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	2,677In Stock	Cut Tape $1.28 $0.916 $0.825 $0.726 Reel $0.595 View $0.677 $0.648 $0.626 $0.567 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 150 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Automotive adjustab le precision shunt TL431LIBEDBZRQ1 Texas Instruments 1: $1.87 34,500In Stock	Mfr. Part # TL431LIBEDBZRQ1 Mouser Part # 595-TL431LIBEDBZRQ1	Texas Instruments	Voltage References Automotive adjustab le precision shunt Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	34,500In Stock	Cut Tape $1.87 $1.36 $1.24 $1.09 Reel $0.909 View $1.03 $0.985 $0.955 $0.888 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 150 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Automotive adjustab le precision shunt TL431LIAEDBZRQ1 Texas Instruments 1: $1.77 9,259In Stock 42,000Expected 2026-10-21	Mfr. Part # TL431LIAEDBZRQ1 Mouser Part # 595-TL431LIAEDBZRQ1	Texas Instruments	Voltage References Automotive adjustab le precision shunt Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	9,259In Stock 42,000Expected 2026-10-21	Cut Tape $1.77 $1.28 $1.16 $1.03 Reel $0.87 View $0.963 $0.924 $0.894 $0.851 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 150 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL431LIAIDBZR Texas Instruments 1: $0.374 5,679In Stock	Mfr. Part # TL431LIAIDBZR Mouser Part # 595-TL431LIAIDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	5,679In Stock	Cut Tape $0.374 $0.261 $0.23 $0.196 Reel $0.154 View $0.179 $0.173 $0.166 $0.148 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL431LIBCDBZR Texas Instruments 1: $0.346 9,513In Stock	Mfr. Part # TL431LIBCDBZR Mouser Part # 595-TL431LIBCDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	9,513In Stock	Cut Tape $0.346 $0.236 $0.209 $0.177 Reel $0.137 View $0.163 $0.154 $0.147 $0.132 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL432LIACDBZR Texas Instruments 1: $0.331 6,510In Stock	Mfr. Part # TL432LIACDBZR Mouser Part # 595-TL432LIACDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	6,510In Stock	Cut Tape $0.331 $0.207 $0.181 $0.153 Reel $0.111 View $0.135 $0.127 $0.121 $0.107 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 0 C	+ 70 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Automotive adjustab le precision shunt TL432LIAEDBZRQ1 Texas Instruments 1: $1.17 1,604In Stock	Mfr. Part # TL432LIAEDBZRQ1 Mouser Part # 595-TL432LIAEDBZRQ1	Texas Instruments	Voltage References Automotive adjustab le precision shunt Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	1,604In Stock	Cut Tape $1.17 $0.829 $0.747 $0.655 Reel $0.536 View $0.612 $0.585 $0.563 $0.516 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 150 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL432LIAIDBZR Texas Instruments 1: $0.36 2,353In Stock	Mfr. Part # TL432LIAIDBZR Mouser Part # 595-TL432LIAIDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	2,353In Stock	Cut Tape $0.36 $0.248 $0.22 $0.189 Reel $0.147 View $0.173 $0.164 $0.157 $0.141 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL432LIBCDBZR Texas Instruments 1: $0.36 5,497In Stock	Mfr. Part # TL432LIBCDBZR Mouser Part # 595-TL432LIBCDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	5,497In Stock	Cut Tape $0.36 $0.248 $0.22 $0.189 Reel $0.147 View $0.173 $0.164 $0.157 $0.14 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL431LIAQDBZR Texas Instruments 1: $0.374 2,283In Stock 15,000Expected 2026-10-26	Mfr. Part # TL431LIAQDBZR Mouser Part # 595-TL431LIAQDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	2,283In Stock 15,000Expected 2026-10-26	Cut Tape $0.374 $0.255 $0.226 $0.193 Reel $0.15 View $0.179 $0.168 $0.161 $0.144 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL431LIBIDBZR Texas Instruments 1: $0.446 5,195In Stock	Mfr. Part # TL431LIBIDBZR Mouser Part # 595-TL431LIBIDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	5,195In Stock	Cut Tape $0.446 $0.302 $0.266 $0.228 Reel $0.174 View $0.209 $0.197 $0.187 $0.168 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL431LIBQDBZR Texas Instruments 1: $0.475 115In Stock 6,000On Order	Mfr. Part # TL431LIBQDBZR Mouser Part # 595-TL431LIBQDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	115In Stock 6,000On Order On Order Ship Dates Mfr. #: TL431LIBQDBZR Stock: 115 Can Ship Immediately On Order: 3,000 Expected 2026-10-26 3,000 Expected 2026-12-03 Factory Lead-Time: 16 Weeks	Cut Tape $0.475 $0.331 $0.292 $0.252 Reel $0.186 View $0.232 $0.219 $0.209 $0.18 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL432LIAQDBZR Texas Instruments 1: $0.317 3,895In Stock	Mfr. Part # TL432LIAQDBZR Mouser Part # 595-TL432LIAQDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	3,895In Stock	Cut Tape $0.317 $0.217 $0.193 $0.164 Reel $0.135 View $0.151 $0.144 $0.141 $0.122 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL432LIBIDBZR Texas Instruments 1: $0.432 2,305In Stock	Mfr. Part # TL432LIBIDBZR Mouser Part # 595-TL432LIBIDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	2,305In Stock	Cut Tape $0.432 $0.297 $0.265 $0.228 Reel $0.177 View $0.209 $0.199 $0.19 $0.173 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Automotive adjustab le precision shunt TL432LIBQDBZRQ1 Texas Instruments 1: $0.922 2,799In Stock	Mfr. Part # TL432LIBQDBZRQ1 Mouser Part # 595-TL432LIBQDBZRQ1	Texas Instruments	Voltage References Automotive adjustab le precision shunt Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	2,799In Stock	Cut Tape $0.922 $0.657 $0.589 $0.514 Reel $0.416 View $0.478 $0.456 $0.439 $0.406 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Automotive adjustab le precision shunt TL431LIAQDBZRQ1 Texas Instruments 1: $1.43 14,998Expected 2027-01-21	Mfr. Part # TL431LIAQDBZRQ1 Mouser Part # 595-TL431LIAQDBZRQ1	Texas Instruments	Voltage References Automotive adjustab le precision shunt Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	14,998Expected 2027-01-21	Cut Tape $1.43 $1.03 $0.927 $0.816 Reel $0.671 View $0.763 $0.732 $0.71 $0.647 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Automotive adjustab le precision shunt TL431LIBQDBZRQ1 Texas Instruments 1: $1.96 21,270Expected 2026-11-02	Mfr. Part # TL431LIBQDBZRQ1 Mouser Part # 595-TL431LIBQDBZRQ1	Texas Instruments	Voltage References Automotive adjustab le precision shunt Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	21,270Expected 2026-11-02	Cut Tape $1.96 $1.41 $1.28 $1.13 Reel $0.919 View $1.06 $1.02 $0.975 $0.914 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL431LI	Reel, Cut Tape, MouseReel
Voltage References Automotive adjustab le precision shunt TL432LIAQDBZRQ1 Texas Instruments 1: $0.806 3,000Expected 2026-12-03	Mfr. Part # TL432LIAQDBZRQ1 Mouser Part # 595-TL432LIAQDBZRQ1	Texas Instruments	Voltage References Automotive adjustab le precision shunt Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	3,000Expected 2026-12-03	Cut Tape $0.806 $0.557 $0.498 $0.433 Reel $0.337 View $0.402 $0.383 $0.367 $0.328 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	1 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL432LI	Reel, Cut Tape, MouseReel
Voltage References Adjustable precision shunt regulator wit TL432LIBQDBZR Texas Instruments 1: $0.461 3,000Expected 2027-01-07	Mfr. Part # TL432LIBQDBZR Mouser Part # 595-TL432LIBQDBZR	Texas Instruments	Voltage References Adjustable precision shunt regulator wit Learn More about Texas Instruments ti tl431li tl432li shunt regulators	Datasheet	3,000Expected 2027-01-07	Cut Tape $0.461 $0.312 $0.275 $0.235 Reel $0.174 View $0.216 $0.204 $0.19 $0.17 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-3	Shunt Adjustable Precision References	Adjustable	0.5 %	63 PPM / C	36 V	15 mA	- 40 C	+ 125 C	TL432LI	Reel, Cut Tape, MouseReel

TL43xLI/TL43xLI-Q1 Programmable Shunt Regulators

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