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SLVS555D – NOVEMBER 2004 – REVISED FEBRUARY 2005
D
D
Low-Voltage Operation . . . Down to 1.24 V
D
D
D
D
0.25-Ω Typical Output Impedance
−405C to 1255C Specifications
Reference Voltage Tolerances at 255C
− 0.5% for B Grade
TLVH432 Provides Alternative Pinouts for
SOT-23-3 and SOT-89 Packages
− 1% for A Grade
− 1.5% for Standard Grade
Ultra-Small SC-70 Package Offers 40%
Smaller Footprint Than SOT-23-3
D
D
Adjustable Output Voltage, V = V
to 18 V
O
REF
Wide Operating Cathode Current Range . . .
55 µA to 80 mA
TLVH431
DBV (SOT23-5) PACKAGE
(TOP VIEW)
TLVH431
DBZ (SOT23-3) PACKAGE
(TOP VIEW)
NC
*NC
CATHODE
ANODE
REF
1
2
3
5
4
REF
CATHODE
1
2
ANODE
3
NC - No internal connection
* Pin 2 is connected internally to ANODE
(die substrate). Pin 2 should be
connected to ANODE or left floating.
TLVH431
PK (SOT-89) PACKAGE
(TOP VIEW)
TLVH431
DCK (SC-70) PACKAGE
(TOP VIEW)
TLVH431
LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
CATHODE
CATHODE
ANODE
REF
CATHODE
NC
ANODE
NC
NC
1
2
3
6
5
4
ANODE
REF
REF
ANODE
NC - No internal connection
TLVH432
TLVH432
PK (SOT-89) PACKAGE
(TOP VIEW)
DBZ (SOT23-3) PACKAGE
(TOP VIEW)
REF
CATHODE
REF
1
2
ANODE
3
ANODE
ANODE
CATHODE
description/ordering information
The TLVH431 and TLVH432 are low-voltage 3-terminal adjustable voltage references with specified thermal
stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value
between V
(1.24 V) and 18 V with two external resistors (see Figure 2). These devices operate from a lower
REF
voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.
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.
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Copyright 2005, Texas Instruments Incorporated
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