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SGLS302C − MARCH 2005 − REVISED APRIL 2008
DBV (SOT-23-5) PACKAGE
(TOP VIEW)
D
D
D
Qualified for Automotive Applications
Operation From −40°C to 125°C
Reference Voltage Tolerance at 25°C
− 1% . . . A Grade
1
NC
†
ANODE
REF
5
4
2
3
NC
− 0.5% . . . B Grade
CATHODE
D
Typical Temperature Drift
− 14 mV (Q Temp)
NC − No internal connection
†
Pin 2 is connected internally to ANODE
(die substrate) and should be floating or
connected to ANODE.
D
D
D
D
Low Output Noise
0.2-Ω Typical Output Impedance
Sink-Current Capability = 1 mA to 100 mA
TL431, TL431A, TL431B
DBZ (SOT-23-5) PACKAGE
(TOP VIEW)
Adjustable Output Voltage = V to 36 V
ref
1
CATHODE
5
ANODE
description
2
REF
The TL431 is a three-terminal adjustable shunt
regulator with specified thermal stability over
applicable automotive temperature ranges. The output voltage can be set to any value between V
ref
(approximately 2.5 V) and 36 V, with two external resistors (see Figure 17). This device has a typical output
impedance of 0.2 Ω. Active output circuitry provides a sharp turn-on characteristic, making this device an
excellent replacement for Zener diodes in many applications, such as onboard regulation, adjustable power
supplies, and switching power supplies.
{
Ordering Information
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
T
A
PACKAGE
SOT-23-5 (DBV)
Reel of 3000
Reel of 3000
Reel of 3000
Reel of 3000
TL431AQDBVRQ1
TL431BQDBZRQ1
TL431QDBVRQ1
TL431AQDBZRQ1
TACQ
T3FU
T3QU
TAQU
SOT-23-3 (DBZ)
SOT-23-5 (DBV)
SOT-23-3 (DBZ)
−40°C to 125°C
†
‡
For the most current package and ordering information, see the Package Option Addendum at the end of this
document, or see the TI web site at http://www.ti.com.
Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.
symbol
REF
ANODE
CATHODE
functional block diagram
CATHODE
+
_
REF
V
ref
ANODE
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerFLEX is a trademark of Texas Instruments.
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Copyright 2008, Texas Instruments Incorporated
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