TLV431A Status: ACTIVE

Low Voltage Adjustable Precision Shunt Regulator

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Datasheet

Low-Voltage Adjustable Precision Shunt Regulator (Rev. T) (PDF 986 KB)
27 Jun 2007

	TLV431	TLV431A	TLV431B
VO Adj(Min)(V)	1.24	1.24	1.24
VO Adj(Max)(V)	6	6	6
Initial Accuracy @ 25/deg C(%)	1.5	1	0.5
Temp Coeff(Max)(ppm/ degree C)	129	129
Temp Coeff(Typ)(ppm/ degree C)	39	39
Min Iz for Regulation(uA)	80	80	80
Iout/Iz(Max)(mA)	15	15	15
Pin/Package	3SOT-23, 3SOT-89, 3TO-92, 5SOT-23	3SOT-23, 3SOT-89, 3TO-92, 5SOT-23, 8SOIC	3SOT-23, 3TO-92, 3SOT-89, 5SOT-23, 6SC70
Approx. Price (US$)	0.23 \| 1ku	0.25 \| 1ku	0.32 \| 1ku
Operating Temp Range(Celsius)	-40 to 125,-40 to 85,0 to 70	-40 to 125,-40 to 85,0 to 70	-40 to 125,-40 to 85,0 to 70
Rating	Catalog	Catalog	Catalog
	Samples	Samples	Samples
	Inventory	Inventory	Inventory

Other qualified versions of TLV431A

Version	Part Number	Definition
Automotive	TLV431A-Q1	Q100 devices qualified for high-reliability automotive applications targeting zero defects

Customers Who Evaluated This Product Also Evaluated

TL431A: Adjustable Precision Shunt Regulator
TLV431: Low-Voltage Adjustable Precision Shunt Regulator
TL431: Adjustable Precision Shunt Regulator
TLV1117-18: Single Output LDO, 800mA, Fixed(1.8V), Internal Current limit, Thermal Overload Protection
TPS54615: 3V to 6V, 6A Synchronous Step Down SWIFT™ Converter with 2.5V Output
TPS23753: IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller

Product Information

Features

Low-Voltage Operation...V_REF = 1.24 V
Adjustable Output Voltage, V_O = V_REF to 6 V
Reference Voltage Tolerances at 25°C
- 0.5% for TLV431B
- 1% for TLV431A
- 1.5% for TLV431
Typical Temperature Drift
- 4 mV (0°C to 70°C)
- 6 mV (–40°C to 85°C)
- 11 mV (–40°C to 125°C)
Low Operational Cathode Current ...80 µA Typ
0.25- Typical Output Impedance
Ultra-Small SC-70 Package Offers 40% Smaller Footprint Than SOT-23-3
See TLVH431 and TLVH432 for
- Wider V_KA (1.24 V to 18 V) and I_K (80 mA)
- Additional SOT-89 Package
- Multiple Pinouts for SOT-23-3 and SOT-89 Packages

Description

The TLV431 is a low-voltage 3-terminal adjustable voltage reference 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 6 V with two external resistors. These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.

When used with an optocoupler, the TLV431 is an ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. These devices have a typical output impedance of 0.25 . Active output circuitry provides a very sharp turn-on characteristic, making them excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TLV431ACDBVR	ACTIVE	0 to 70	0.25 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TLV431ACDBVRE4	ACTIVE	0 to 70	0.25 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TLV431ACDBVRG4	ACTIVE	0 to 70	0.25 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TLV431ACDBVT	ACTIVE	0 to 70	0.52 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TLV431ACDBVTE4	ACTIVE	0 to 70	0.52 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TLV431ACDBVTG4	ACTIVE	0 to 70	0.52 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TLV431ACDBZR	ACTIVE	0 to 70	0.25 \| 1ku	SOT-23 (DBZ) \| 3	View	3000 \| LARGE T&R
TLV431ACDBZRG4	ACTIVE	0 to 70	0.25 \| 1ku	SOT-23 (DBZ) \| 3	View	3000 \| LARGE T&R
TLV431ACLP	ACTIVE	0 to 70	0.25 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK
TLV431ACLPE3	ACTIVE	0 to 70	0.25 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK
TLV431ACLPR	ACTIVE	0 to 70	0.25 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R	Purchase Samples
TLV431ACLPRE3	ACTIVE	0 to 70	0.25 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R	Purchase Samples
TLV431AID	ACTIVE	-40 to 85	0.32 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TLV431AIDBVR	ACTIVE	-40 to 85	0.29 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TLV431AIDBVRE4	ACTIVE	-40 to 85	0.29 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TLV431AIDBVRG4	ACTIVE	-40 to 85	0.29 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TLV431AIDBVT	ACTIVE	-40 to 85	0.56 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TLV431AIDBVTE4	ACTIVE	-40 to 85	0.56 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TLV431AIDBVTG4	ACTIVE	-40 to 85	0.56 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TLV431AIDBZR	ACTIVE	-40 to 85	0.29 \| 1ku	SOT-23 (DBZ) \| 3	View	3000 \| LARGE T&R
TLV431AIDBZRG4	ACTIVE	-40 to 85	0.29 \| 1ku	SOT-23 (DBZ) \| 3	View	3000 \| LARGE T&R
TLV431AIDE4	ACTIVE	-40 to 85	0.32 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TLV431AIDG4	ACTIVE	-40 to 85	0.32 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TLV431AIDR	ACTIVE	-40 to 85	0.29 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TLV431AIDRE4	ACTIVE	-40 to 85	0.29 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TLV431AIDRG4	ACTIVE	-40 to 85	0.29 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TLV431AILP	ACTIVE	-40 to 85	0.29 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK
TLV431AILPE3	ACTIVE	-40 to 85	0.29 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK
TLV431AILPM	ACTIVE	-40 to 85	0.29 \| 1ku	TO-92 (LP) \| 3	View	2000 \| AMMO	Purchase Samples
TLV431AILPME3	ACTIVE	-40 to 85	0.29 \| 1ku	TO-92 (LP) \| 3	View	2000 \| AMMO	Purchase Samples
TLV431AILPR	ACTIVE	-40 to 85	0.29 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R
TLV431AILPRE3	ACTIVE	-40 to 85	0.29 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R
TLV431AQPK	ACTIVE	-40 to 125	0.38 \| 1ku	SOT-89 (PK) \| 3		1000 \| LARGE T&R
TLV431AQPKG3	ACTIVE	-40 to 125	0.38 \| 1ku	SOT-89 (PK) \| 3		1000 \| LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:30 AM GMT, 26 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 12 WeeksTLV431ACDBVR
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	535
Asia	Wintech	>1k
Europe	Farnell	245
Worldwide	Mouser Electronics	21
TI Lead Time*: 12 WeeksTLV431ACDBVRE4
None Reported View Distributors
TI Lead Time*: 12 WeeksTLV431ACDBVRG4
Asia	Farnell Asia	248
Europe	Farnell	248
TI Lead Time*: 12 WeeksTLV431ACDBVT
Americas	Rochester Electronics	>1k
Worldwide	Mouser Electronics	45
TI Lead Time*: 12 WeeksTLV431ACDBVTE4
None Reported View Distributors
TI Lead Time*: 12 WeeksTLV431ACDBVTG4
None Reported View Distributors
TI Lead Time*: 15 WeeksTLV431ACDBZR
Americas	Avnet	>1k
	Newark	>1k
	Rochester Electronics	>1k
Asia	WPI	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 15 WeeksTLV431ACDBZRG4
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	356
TI Lead Time*: 12 WeeksTLV431ACLP
Americas	Rochester Electronics	>1k
Asia	WPI	676
Worldwide	DigiKey	392
Worldwide	Mouser Electronics	604
TI Lead Time*: 12 WeeksTLV431ACLPE3
Americas	Arrow	203
Europe	Spoerle	500
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431ACLPR
Americas	Avnet	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 12 WeeksTLV431ACLPRE3
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksTLV431AID
Americas	Arrow	>1k
	Avnet	>1k
	Rochester Electronics	>1k
Asia	Farnell Asia	896
Europe	Arrow Southern Europe	975
	Avnet-SILICA	675
	Compel	690
	Farnell	883
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	593
TI Lead Time*: 12 WeeksTLV431AIDBVR
Americas	Newark	764
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	>1k
Europe	EBV Elektronik	>1k
Europe	Farnell	>1k
Worldwide	DigiKey	164
Worldwide	Mouser Electronics	332
TI Lead Time*: 12 WeeksTLV431AIDBVRE4
Asia	Farnell Asia	964
Europe	Farnell	964
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431AIDBVRG4
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431AIDBVT
Europe	Avnet-SILICA	500
	Compel	>1k
	Spoerle	250
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	973
TI Lead Time*: 12 WeeksTLV431AIDBVTE4
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431AIDBVTG4
Europe	EBV Elektronik	125
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksTLV431AIDBZR
Americas	Arrow	>1k
Americas	Newark	222
Asia	WPI	>1k
Europe	Arrow Southern Europe	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksTLV431AIDBZRG4
None Reported View Distributors
TI Lead Time*: 15 WeeksTLV431AIDE4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksTLV431AIDG4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksTLV431AIDR
Americas	Newark	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	440
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksTLV431AIDRE4
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksTLV431AIDRG4
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431AILP
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	1k
Europe	EBV Elektronik	498
Worldwide	DigiKey	1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 12 WeeksTLV431AILPE3
Americas	Newark	942
Asia	Farnell Asia	942
Europe	Avnet-SILICA	93
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431AILPM
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431AILPME3
Americas	Newark	>1k
Asia	Farnell Asia	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431AILPR
Americas	Avnet	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 12 WeeksTLV431AILPRE3
Americas	Newark	>1k
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksTLV431AQPK
Worldwide	DigiKey	737
Worldwide	Mouser Electronics	955
TI Lead Time*: 12 WeeksTLV431AQPKG3
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	566
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TLV431ACDBVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431ACDBVRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431ACDBVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431ACDBVT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431ACDBVTE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431ACDBVTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431ACDBZR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431ACDBZRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431ACLP	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431ACLPE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431ACLPR	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431ACLPRE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431AID	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDBVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDBVRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDBVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDBVT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDBVTE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDBVTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDBZR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDBZRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AIDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TLV431AILP	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431AILPE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431AILPM	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431AILPME3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431AILPR	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431AILPRE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
TLV431AQPK	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
TLV431AQPKG3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TLV431A

Datasheet

Low-Voltage Adjustable Precision Shunt Regulator (Rev. T) (PDF, 986 KB)
27 Jun 2007

Selection Guides

Standard Linear Products Cross-Reference (Rev. D) (PDF, 1169 KB) 33381 views
05 May 2006

Reference Designs

Description	Part #	Company
Active Clamp Forward Reference Design	PMP368	Texas Instruments

Part #	Name	Product Family	Comments
TLVH431A	Low-Voltage Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE - SHUNT VOLTAGE REFERENCE	The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent. It offers a wider range for Vout (18V max) and Iz (80mA max).
TLVH432A	Low-Voltage Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE - SHUNT VOLTAGE REFERENCE	The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent. It offers a wider range for Vout (18V max) and Iz (80mA max), as well as different pinouts for SOT23-3 & SOT-89 packages.
Customers Who Evaluated This Product Also Evaluated...
TL431A	Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
TLV431	Low-Voltage Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
TL431	Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
TLV1117-18	Single Output LDO, 800mA, Fixed(1.8V), Internal Current limit, Thermal Overload Protection	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	TI customers also evaluated this product.
TPS54615	3V to 6V, 6A Synchronous Step Down SWIFT™ Converter with 2.5V Output	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS23753	IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS5430-Q1	Automotive Catalog 3-A Wide-Input-Range Step-Down SWIFT™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS63000	96% Buck-Boost Converter with 1.8A Current Switches in 3x3 QFN	DC/DC CONVERTERS (INTEGRATED SWITCH)-BUCK-BOOST REGULATORS	TI customers also evaluated this product.
TPS60400	60mA Charge Pump Voltage Inverter with Variable Switching Frequency	INDUCTORLESS DC/DC REGULATORS (CHARGE PUMPS)-INVERTING CHARGE PUMP REGULATORS	TI customers also evaluated this product.
TL494	PWM Control Circuit	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
TPS2051B	Single, Current-Limited, Power-Distribution Switch	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
TLV1117-33	Single Output LDO, 800mA, Fixed(3.3), Internal Current limit, Thermal Overload Protection	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	TI customers also evaluated this product.
TPS61175	3-A High Voltage Boost Converter with Soft-start and Programmable Switching Frequency	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	TI customers also evaluated this product.

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TLV431A Status: ACTIVE

Low Voltage Adjustable Precision Shunt Regulator

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