TL431AIDBZT

IC VREF SHUNT ADJ 1% SOT23-3

TL431AIDBZT is a precision programmable shunt regulator with 1% reference voltage tolerance (A grade), operating from -40°C to 85°C in an SOT-23-3 package, featuring low output impedance and 1mA to 100mA sink-current capability.Checked against the datasheet

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Technical parameters

Datasheet-verified parameters

18 items

Parameter	Value and test conditions	Source
Package	SOT-23 (DBZ), 3 Pins
Operating Free-Air Temperature	-40°C to 85°C
Grade	A (1% tolerance)
RoHS	Yes
Reference Voltage	Min: 2470 mV, Typ: 2495 mV, Max: 2520 mV (V_KA = V_ref, I_KA = 10mA, T_A = 25°C)
Cathode Voltage	Min: V_ref, Max: 36 V (Recommended Operating Conditions)
Continuous Cathode Current Range	Min: 1 mA, Max: 100 mA (Recommended Operating Conditions)
Dynamic Impedance	Typ: 0.2 Ω, Max: 0.5 Ω (V_KA = V_ref, f ≤ 1kHz, I_KA = 1mA to 100mA)
Reference Input Current	Min: 2 μA, Typ: 4 μA (I_KA = 10mA, R1 = 10kΩ, R2 = ∞)
Minimum cathode current for regulation	Min: 0.4 mA, Typ: 0.7 mA (V_KA = V_ref)
Off-state cathode current	Min: 0.1 μA, Typ: 0.5 μA (V_KA = 36V, V_ref = 0)
Absolute Maximum Rating: Cathode Voltage	Max: 37 V
Absolute Maximum Rating: Continuos Cathode Current Range	Min: -100 mA, Max: 150 mA
Absolute Maximum Rating: Operating Junction Temperature Range	Max: 150 °C
Absolute Maximum Rating: Storage Temperature Range	Min: -65 °C, Max: 150 °C
Junction-to-ambient thermal resistance	206 °C/W (Package DBZ)
Junction-to-case (top) thermal resistance	76 °C/W (Package DBZ)
Deviation of reference input voltage over full temperature range	Min: 14 mV, Typ: 34 mV (SOT23-3 and TL432 devices, V_KA = V_ref, I_KA = 10mA)

All parameters (21)ExpandCollapse

Power
Current - Cathode	700 µA
Current - Output	100 mA
Current - Supply	-
Voltage - Input	-
Voltage - Output (Max)	36 V
Voltage - Output (Min/Fixed)	2.495V
AC and DC characteristics
Noise - 0.1Hz to 10Hz	-
Noise - 10Hz to 10kHz	-
Environment and package
Mounting Type	Surface Mount
Operating Temperature	-40°C~85°C(TA)
Package	Tape & Reel (TR); Cut Tape (CT); Digi-Reel®
Package / Case	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23-3
Temperature Coefficient	-
Other
Base Product Number	TL431
Mfr	Texas Instruments
Output Type	Adjustable
Product Status	Active
Reference Type	Shunt
Series	-
Tolerance	±1%

Pinout and package

PackageSOT-23 (DBZ), 3 Pins

Pin	Name	Function	Source
1		CATHODE: Shunt Current/Voltage input
2		REF: Threshold relative to common anode
3		ANODE: Common pin, normally connected to ground

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DatasheetDatasheet · 2.9 MB · 2026-10-29

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