UTC TL431A
LINEAR INTEGRATED CIRCUIT
1
PROGRAMMABLE PRECISION
REFERENCE
DESCRIPTION
The UTC TL431A is a three-terminal adjustable regulator
with a guaranteed thermal stability over applicable
temperature ranges. The output voltage may be set to any
value between Vref(approximately 2.5V) and 36V with two
external resistors. It provides very wide applications,
including shunt regulator, series regulator, switching
regulator, voltage reference and others.
1
SOT-89
TO-92
2
1
3
FEATURES
*Programmable output Voltage to 36V.
*Low dynamic output impedance 0.2鈩?
*Sink current capability of 1 to 100mA.
*Equivalent full-range temperature coefficient of 50ppm/
擄C
typical for operation over full rated operating temperature
range.
SOT-23
SOP-8
SOP-8 1: Cathode
2,3,6,7: Anode 8: Ref.
4,5: N.C.
TO-92 1: Ref ; 2: Anode; 3: Cathode
SOT-89 1: Ref ; 2: Anode; 3: Cathode
SOT-23 1: Cathode; 2: Ref; 3: Anode
*Pb-free plating product number: TL431AK
BLOCK DIAGRAM
CATHODE
REFERENCE
REFERENCE
(R)
ANODE(A)
CATHODE
(K)
2.5V Vref
ANODE
UTC
UNISONIC TECHNOLOGIES
CO., LTD.
1
QW-R103-007,D