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PROGRAMMABLE PRECISION SHUNT REGULATOR
TL431Z/AZ /CZ
PROGRAMMABLE PRECISION REFERENCES
The TL431Z is three-terminal adjustable shunt regulator
with specified termal stability.
The output voltage may be set to any value between
VREF(Approx. 2.5V) and 36V with two external resistors.
This device has a typical output inpedance of 0.2Ω.
Active output circuitry provides a very sharp turn-on
characteristic, making this device excellent
replacement for zener diodes in many application.
FEATURES
● Equivalent Full Range Temperature Coefficient 50PPM/℃
ORDERING INFORMATION
● Temperature Compensated For Operation Over
Full Rate Operating Temperature Range
● Adjustable Output Voltage
● Fast Turn-on Response
● Sink Current Capability 1㎃ to 100㎃
● Low (0.2Ω Typ.) Dynamic Output Impedance
● Low Output Noise
FUNCTION BLOCK DIAGRAM
Jan. 2007 - Rev 1.0
HTC
Package
TO-92
Device
Marking
TL431Z
TL431-AZ
TL431Z
TL431-AZ
TL431-CZ
TL431-CZ
TL431-AZSF
TL431-CZSF
SOT-23
431
TL431ZSF
1
2.5VREF
BLOCK DIAGRAM
REFERENCE
CATHODE
ANODE
REFERENCE(R)
ANODE(A)
CATHODE(K)
* Packing label is
different as Vref
3.Cathode
2.Anode
1.Reference
2.Anode
1.Reference
3.Cathode
TO-92 PKG
SOT-23 PKG
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