LM4040C25 Status: ACTIVE

2.5-V Precision Micropower Shunt Voltage Reference, 0.5% accuracy

Alert me about changes<br/>to this product

Alert me about changes
to this product

Datasheet

Precision Micropower Shunt Voltage Reference (Rev. K) (PDF 730 KB)
11 Mar 2008

	LM4040A25	LM4040B25	LM4040C25	LM4040D25
VO(V)	2.5	2.5	2.5	2.5
Initial Accuracy @ 25/deg C(%)	0.1	0.2	0.5	1
Temp Coeff(Max)(ppm/ degree C)	100	100	100	150
Temp Coeff(Typ)(ppm/ degree C)	15	15	15	15
Min Iz for Regulation(uA)	75	75	75	75
Iout/Iz(Max)(mA)	15	15	15	15
Pin/Package	3SOT-23, 3TO-92, 5SC70	3SOT-23, 3TO-92, 5SC70	3SOT-23, 3TO-92, 5SC70	3SOT-23, 3TO-92, 5SC70
Approx. Price (US$)	1.00 \| 1ku	0.60 \| 1ku	0.35 \| 1ku	0.27 \| 1ku
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 125,-40 to 85	-40 to 125,-40 to 85
Rating	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TL431A: Adjustable Precision Shunt Regulator
TLV431A: Low Voltage Adjustable Precision Shunt Regulator
TPS5430: 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter
TPS62601: 500-mA, 6-MHz Synchronous Step-Down Converter in Chip Scale Packaging
UC2846: Current Mode PWM Controller

Product Information

Features

Fixed Output Voltages of 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V
Tight Output Tolerances and LowTemperature Coefficient
- Max 0.1%, 100 ppm/°C - A Grade
- Max 0.2%, 100 ppm/°C - B Grade
- Max 0.5%, 100 ppm/°C - C Grade
- Max 1.0%, 150 ppm/°C - D Grade
Low Output Noise. . .35 µV_RMS Typ
Wide Operating Current Range. . .45 µA Typ to 15 mA
Stable With All Capacitive Loads; No Output Capacitor Required
Available in Extended Temperature Range. . .-40°C to 125°C
APPLICATIONS
- Data-Acquisition Systems
- Power Supplies and Power-Supply Monitors
- Instrumentation and Test Equipment
- Process Controls
- Precision Audio
- Automotive Electronics
- Energy Management
- Battery-Powered Equipment

DESCRIPTION/ORDERING INFORMATION

The LM4040 series of shunt voltage references are versatile, easy-to-use references that cater to a vast array of applications. The 2-pin fixed-output device requires no external capacitors for operation and is stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4040 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications.

Packaged in space-saving SC-70 and SOT-23-3 packages and requiring a minimum current of 45 mA (typ), the LM4040 also is ideal for portable applications. The LM4040xI is characterized for operation over an ambient temperature range of -40°C to 85°C. The LM4040xQ is characterized for operation over an ambient temperature range of -40°C to 125°C.

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
LM4040C25IDBZR	ACTIVE	-40 to 85	0.35 \| 1ku	SOT-23 (DBZ) \| 3	View	3000 \| LARGE T&R
LM4040C25IDBZRG4	ACTIVE	-40 to 85	0.35 \| 1ku	SOT-23 (DBZ) \| 3	View	3000 \| LARGE T&R
LM4040C25IDBZT	ACTIVE	-40 to 85	0.57 \| 1ku	SOT-23 (DBZ) \| 3	View	250 \| SMALL T&R	Purchase Samples
LM4040C25IDBZTG4	ACTIVE	-40 to 85	0.57 \| 1ku	SOT-23 (DBZ) \| 3	View	250 \| SMALL T&R	Purchase Samples
LM4040C25IDCKR	ACTIVE	-40 to 85	0.38 \| 1ku	SC70 (DCK) \| 5	View	3000 \| LARGE T&R
LM4040C25IDCKRE4	ACTIVE	-40 to 85	0.38 \| 1ku	SC70 (DCK) \| 5	View	3000 \| LARGE T&R
LM4040C25IDCKRG4	ACTIVE	-40 to 85	0.38 \| 1ku	SC70 (DCK) \| 5	View	3000 \| LARGE T&R
LM4040C25IDCKT	ACTIVE	-40 to 85	0.60 \| 1ku	SC70 (DCK) \| 5	View	250 \| SMALL T&R	Purchase Samples
LM4040C25IDCKTE4	ACTIVE	-40 to 85	0.60 \| 1ku	SC70 (DCK) \| 5	View	250 \| SMALL T&R	Purchase Samples
LM4040C25IDCKTG4	ACTIVE	-40 to 85	0.60 \| 1ku	SC70 (DCK) \| 5	View	250 \| SMALL T&R	Purchase Samples
LM4040C25ILP	ACTIVE	-40 to 85	0.35 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK	Purchase Samples
LM4040C25ILPE3	ACTIVE	-40 to 85	0.35 \| 1ku	TO-92 (LP) \| 3	View	1000 \| BULK	Purchase Samples
LM4040C25ILPR	ACTIVE	-40 to 85	0.35 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R	Purchase Samples
LM4040C25ILPRE3	ACTIVE	-40 to 85	0.35 \| 1ku	TO-92 (LP) \| 3	View	2000 \| LARGE T&R	Purchase Samples
LM4040C25QDBZR	ACTIVE	-40 to 125	0.53 \| 1ku	SOT-23 (DBZ) \| 3	View	3000 \| LARGE T&R
LM4040C25QDBZRG4	ACTIVE	-40 to 125	0.53 \| 1ku	SOT-23 (DBZ) \| 3	View	3000 \| LARGE T&R
LM4040C25QDBZT	ACTIVE	-40 to 125	0.75 \| 1ku	SOT-23 (DBZ) \| 3	View	250 \| SMALL T&R	Purchase Samples
LM4040C25QDBZTG4	ACTIVE	-40 to 125	0.75 \| 1ku	SOT-23 (DBZ) \| 3	View	250 \| SMALL T&R	Purchase Samples

* 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 11:53 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 15 WeeksLM4040C25IDBZR
Americas	Arrow	>1k
Americas	Avnet	>1k
Europe	Compel	3
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksLM4040C25IDBZRG4
Europe	Arrow Northern Europe	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksLM4040C25IDBZT
Americas	Arrow	>1k
	Avnet	250
	Rochester Electronics	>1k
Asia	WPI	147
Europe	Avnet-SILICA	500
	EBV Elektronik	75
	Spoerle	>1k
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	695
TI Lead Time*: 15 WeeksLM4040C25IDBZTG4
Asia	Farnell Asia	>1k
Europe	Farnell	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM4040C25IDCKR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	909
TI Lead Time*: 12 WeeksLM4040C25IDCKRE4
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM4040C25IDCKRG4
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM4040C25IDCKT
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Asia	WPI	114
Europe	Arrow Northern Europe	500
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	750
TI Lead Time*: 12 WeeksLM4040C25IDCKTE4
Asia	Farnell Asia	211
Europe	Farnell	211
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM4040C25IDCKTG4
Worldwide	DigiKey	Available
TI Lead Time*: 12 WeeksLM4040C25ILP
Americas	Arrow	>1k
	Newark	>1k
	Rochester Electronics	>1k
Asia	Farnell Asia	>1k
Asia	WPI	984
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 12 WeeksLM4040C25ILPE3
Europe	Compel	>1k
TI Lead Time*: 12 WeeksLM4040C25ILPR
Americas	Arrow	>1k
	Newark	>1k
	Rochester Electronics	>1k
Asia	Farnell Asia	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 12 WeeksLM4040C25ILPRE3
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksLM4040C25QDBZR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksLM4040C25QDBZRG4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksLM4040C25QDBZT
Americas	Arrow	1k
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	500
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	368
TI Lead Time*: 15 WeeksLM4040C25QDBZTG4
Asia	Farnell Asia	961
Europe	Farnell	945
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	165
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
LM4040C25IDBZR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDBZRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDBZT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDBZTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDCKR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDCKRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDCKRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDCKT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDCKTE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25IDCKTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25ILP	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM4040C25ILPE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM4040C25ILPR	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM4040C25ILPRE3	Pb-Free (RoHS)	CU SN	N/A for Pkg Type	View	View
LM4040C25QDBZR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25QDBZRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25QDBZT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
LM4040C25QDBZTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	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 LM4040C25

Datasheet

Precision Micropower Shunt Voltage Reference (Rev. K) (PDF, 730 KB)
11 Mar 2008

More Literature

SLL Precision Reference Product Clip (PDF, 831 KB) 1473 views
23 Feb 2006

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TL431A	Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
TLV431A	Low Voltage Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
TPS5430	5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS62601	500-mA, 6-MHz Synchronous Step-Down Converter in Chip Scale Packaging	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
UC2846	Current Mode PWM Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	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.
TPS51220	Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS51116	DDR1, DDR2, DDR3 Switcher and LDO	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS54386	Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS51123	Dual-Synchronous, Step-Down Controller w/ Out-of-Audio Operation, 100-mA LDOs for Notebook Sys. Pwr	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS79301	Single Output LDO, 200mA, Adj.(1.2 to 5.5V), High PSRR, Low Noise	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS61202	0.3V Input Voltage Boost Converter with 1.3A Switches and 'Down Mode' in a 3x3 QFN	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	TI customers also evaluated this product.

Support and Community

Customer Tags

No Tags are Available for this Part Number

LM4040C25 Status: ACTIVE

2.5-V Precision Micropower Shunt Voltage Reference, 0.5% accuracy

Most Popular Links

Datasheet

Customers Who Evaluated This Product Also Evaluated