TL431ILPR Integrated Circuits (ICs)

Temperature Coefficient:	--
Base Part Number:	TL431
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	1mA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Noise - 0.1Hz to 10Hz:	--
Series:	--
Tolerance:	±2.2%
Current - Output:	100mA
Voltage - Output (Max):	36V
Voltage - Output (Min/Fixed):	2.495V
Output Type:	Adjustable
Reference Type:	Shunt
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TL431ILP is a member of a family of three-terminal low-power adjustable shunt regulators, whose main application field is PMIC - Voltage Reference. It can provide an adjustable output voltage that is independent of the input voltage and the operating temperature.The TL431ILP is a precision integrated circuit with a wide range of applications. It can be used to generate precise outputs from low-level DC signals, such as current or voltage sources; generate precise voltage references with low-noise feedback from an AC line; among other interesting applications. The TL431ILP is well-suited for power applications requiring high output voltage accuracy over line, load, and temperature ranges.To understand better its working principle, it is necessary to discuss the internal construction of the TL431ILP. The TL431ILP consists of three sub-circuits: a voltage reference, a precision comparator and a current limiter. The reference voltage is created by a band-gap regulator, which provides a stable output voltage independent of the input voltage. The band-gap voltage is then amplified by a voltage gain stage and this amplified band-gap voltage is compared to an adjustable reference voltage (by the comparator) to generate an output voltage that follows the relations between the reference voltage and the amplified band-gap voltage. The current-limiting feature of the TL431ILP is designed to prevent damage to the regulator in the event of an overload condition. The current limiter consists of a transistor, which conducts current when an overload condition is present at the output. This current is then limited by the transistor and the output voltage is stabilized.In summary, the TL431ILP is an excellent device for providing an accurate, adjustable output voltage for PMIC - Voltage Reference applications that require low output voltage noise and high precision over a wide range of input, output, and temperature conditions. It is well-suited for power applications demanding high output accuracy. Its internal construction, which comprises a voltage reference, a precision comparator, and a current limiter, is designed to provide the required accuracy and reliability.

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