ATL43xLI/ATL43xLI-Q1 Programmable Shunt Regulator

TTexas Instruments ATL43xLI/ATL43xLI-Q1 Programmable Shunt Regulator is a three-terminal adjustable shunt regulator with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5V) 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. This device is a pin-to-pin alternative to the TL431LI and TL432LI, with a lower minimum operating current to help reduce system power consumption.

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Qty. RoHS ECAD Model Mounting Style
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Output Voltage
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Series VREF - Input Voltage - Max
Shunt Current - Max
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Texas Instruments Voltage References Automotive high-ban dwidth low-IQ progr
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 0.5 % 66 PPM / C 36 V 15 mA - 40 C + 125 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Automotive high-ban dwidth low-IQ progr
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7,713In Stock
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 0.5 % 66 PPM / C 36 V 15 mA - 40 C + 125 C ATL432LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Automotive high-ban dwidth low-IQ progr
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5,498In Stock
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 1 % 66 PPM / C 36 V 15 mA - 40 C + 125 C ATL432LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References High-bandwidth low- IQ programmable shun
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2,981Expected 2026-09-10
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 0.5 % 92 PPM / C 36 V 100 mA - 40 C + 125 C ATL432LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Low-IQ programmable shunt regulator offe
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3,486In Stock
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SMD/SMT X2SON-4 Shunt Adjustable Precision References 2.5 V to 36 V 1 % 66 PPM / C 36 V 15 mA - 40 C + 125 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Low-IQ programmable shunt regulator offe
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5,823In Stock
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SMD/SMT X2SON-4 Shunt Adjustable Precision References 2.5 V to 36 V 1 % 66 PPM / C 36 V 15 mA - 40 C + 85 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Automotive high-ban dwidth low-IQ progr
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45,734In Stock
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 1 % 66 PPM / C 36 V 15 mA - 40 C + 125 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Low-IQ programmable shunt regulator offe
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 1 % 92 PPM / C 36 V 15 mA - 40 C + 125 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Low-IQ programmable shunt regulator offe
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4,162In Stock
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 1 % 92 PPM / C 36 V 15 mA - 40 C + 125 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Low-IQ programmable shunt regulator offe
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2,640In Stock
3,000On Order
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 0.5 % 92 PPM / C 36 V 15 mA - 40 C + 125 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Low-IQ programmable shunt regulator offe
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2,974In Stock
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SMD/SMT X2SON-4 Shunt Adjustable Precision References 2.5 V to 36 V 0.5 % 66 PPM / C 36 V 15 mA - 40 C + 85 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Low-IQ programmable shunt regulator offe
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4,210In Stock
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 0.5 % 92 PPM / C 36 V 15 mA - 40 C + 125 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References Low-IQ programmable shunt regulator offe
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2,246In Stock
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SMD/SMT X2SON-4 Shunt Adjustable Precision References 2.5 V to 36 V 0.5 % 66 PPM / C 36 V 15 mA - 40 C + 125 C ATL431LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References High-bandwidth low- IQ programmable shun
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1,630In Stock
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SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 1 % 92 PPM / C 36 V 100 mA - 40 C + 125 C ATL432LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References High-bandwidth low- IQ programmable shun
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703In Stock
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: 3,000

SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 1 % 92 PPM / C 36 V 100 mA - 40 C + 125 C ATL432LI Reel, Cut Tape, MouseReel
Texas Instruments Voltage References High-bandwidth low- IQ programmable shun
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1,903In Stock
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: 3,000

SMD/SMT SOT-23-3 Shunt Adjustable Precision References 2.5 V to 36 V 0.5 % 92 PPM / C 36 V 100 mA - 40 C + 125 C ATL432LI Reel, Cut Tape, MouseReel