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ATL431LI

Texas Instruments
Part Number ATL431LI
Manufacturer Texas Instruments
Description High Bandwidth Low-Iq Programmable Shunt Regulator
Published Jan 1, 2020
Detailed Description Product Folder Order Now Technical Documents Tools & Software Support & Community ATL431LI ATL432LI SLVSDU6D – JULY...
Datasheet PDF File ATL431LI PDF File

ATL431LI
ATL431LI

Overview
Product Folder Order Now Technical Documents Tools & Software Support & Community ATL431LI ATL432LI SLVSDU6D – JULY 2017 – REVISED NOVEMBER 2019 ATL431LI / ATL432LI High Bandwidth Low-Iq Programmable Shunt Regulator 1 Features •1 Reference voltage tolerance at 25°C – 0.
5% (B Grade) – 1% (A Grade) • Minimum typical output voltage: 2.
5 V • Adjustable output voltage: Vref to 36 V • Operation from −40°C to +125°C (Q temp) • Maximum temperature drift – 17 mV (I Temp) – 27 mV (Q Temp) • 0.
3-Ω Typical output impedance • Sink-current capability – Imin = 0.
08 mA (max) – IKA = 15 mA (max) • Reference input current IREF: 0.
4 μA (max) • Deviation of reference input current over temperature, II(dev): 0.
3 μA (max) • Packages: 1-mm x 1-mm X2SON or SOT23-3 2 Applications • Adjustable voltage and current referencing • Secondary side regulation in Flyback SMPS • Zener diode replacement • Voltage monitoring • Precision constant current sink/source • Comparator with integrated reference 3 Description The ATL43xLI device 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.
5 V) and 36 V, with two external resistors.
These devices have a typical output impedance of 0.
3 Ω.
Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.
This device is a pin-to-pin alternative to the TL431LI and TL432LI, with lower minimum operating current to help reduce system power consumption.
The ATL432LI device has exactly the same functionality and electrical specifications as the ATL431LI device, but has a different pinout for the DBZ package.
The ATL431LI is also offered in a tiny X2SON (1.
00 mm x 1.
00 mm) package which makes it ideal for space const...


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