TLVH431A Datasheet, PDF (1/31 Pages) Texas Instruments – LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR

TLVH431, TLVH431A, TLVH431B
TLVH432, TLVH432A, TLVH432B
LOWĆVOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
SLVS555D – NOVEMBER 2004 – REVISED FEBRUARY 2005
D Low-Voltage Operation . . . Down to 1.24 V
D Reference Voltage Tolerances at 255C
− 0.5% for B Grade
− 1% for A Grade
− 1.5% for Standard Grade
D Adjustable Output Voltage, V_O = V_REF to 18 V
D Wide Operating Cathode Current Range . . .
55 µA to 80 mA
D 0.25-Ω Typical Output Impedance
D −405C to 1255C Specifications
D TLVH432 Provides Alternative Pinouts for
SOT-23-3 and SOT-89 Packages
D Ultra-Small SC-70 Package Offers 40%
Smaller Footprint Than SOT-23-3
TLVH431
DBV (SOT23-5) PACKAGE
(TOP VIEW)
TLVH431
DBZ (SOT23-3) PACKAGE
(TOP VIEW)
NC 1
*NC 2
CATHODE 3
5 ANODE
4 REF
NC - No internal connection
* Pin 2 is connected internally to ANODE
(die substrate). Pin 2 should be
connected to ANODE or left floating.
REF 1
CATHODE 2
TLVH431
DCK (SC-70) PACKAGE
(TOP VIEW)
TLVH431
LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
3 ANODE
TLVH431
PK (SOT-89) PACKAGE
(TOP VIEW)
CATHODE 1
NC 2
REF 3
6 ANODE
5 NC
4 NC
NC - No internal connection
TLVH432
PK (SOT-89) PACKAGE
(TOP VIEW)
CATHODE
ANODE
REF
ANODE
TLVH432
DBZ (SOT23-3) PACKAGE
(TOP VIEW)
CATHODE
ANODE
REF
ANODE
REF
ANODE
CATHODE 1
3 ANODE
REF 2
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_REF (1.24 V) and 18 V with two external resistors (see Figure 2). These devices operate from a lower
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  2005, Texas Instruments Incorporated
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