Name: LM2940S-12
Brand: Texas Instruments
SKU: LM2940S-12
Price: 3.1323 USD
Availability: InStock
Rating: 5 (137 reviews)

LM2940S-12

For Reference Only

Part Number	LM2940S-12
Manufacturer	Texas Instruments
Description	IC REG LIN 12V 1A DDPAK/TO263-3
Datasheet	LM2940S-12 Specifications
Package	TO-263-4, D2Pak (3 Leads + Tab), TO-263AA
ECAD
In Stock	96,096 piece(s)
Unit Price	$ 3.1323 *
Lead Time	Can Ship Immediately
Estimated Delivery Time	Apr 21 - Apr 26 (Choose Expedited Shipping)
Request for Quotation

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Delivery Services

Part Number # LM2940S-12 (PMIC - Voltage Regulators - Linear) is manufactured by Texas Instruments and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For LM2940S-12 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add LM2940S-12 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of LM2940S-12.

LM2940S-12 Specifications

Manufacturer	Texas Instruments
Category	Integrated Circuits (ICs) - PMIC - Voltage Regulators - Linear
Package	TO-263-4, D2Pak (3 Leads + Tab), TO-263AA
ECAD
Series	-
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	26V
Voltage - Output (Min/Fixed)	12V
Voltage - Output (Max)	-
Voltage Dropout (Max)	1V @ 1A
Current - Output	1A
Current - Quiescent (Iq)	-
Current - Supply (Max)	10mA ~ 15mA
PSRR	66dB (120Hz)
Control Features	-
Protection Features	Over Current, Over Temperature, Reverse Polarity, Short Circuit
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	TO-263-4, D2Pak (3 Leads + Tab), TO-263AA
Supplier Device Package	DDPAK/TO-263-3

LM2940S-12 Reviews

Lilly*****erson

April 3, 2023

★ ★ ★ ★ ★

Better than ever - more stock, better prices, quicker shipments, many choices of payment.

Row*****Dutt

March 11, 2023

★ ★ ★ ★ ★

EXACTLY what I was looking for -- one piece with a low forward voltage drop to isolate some DC power sources. They work fantastic!

Eddi*****ters

March 8, 2023

★ ★ ★ ★ ★

Absolutely awesome, quick delivery, perfect product exactly as described!

Dex***** Bose

February 28, 2023

★ ★ ★ ★ ★

Used it on my system it works perfect as I need.

Brod*****eves

February 22, 2023

★ ★ ★ ★ ★

Great communication with sales. A pleasure to do business with you.

Write a Review

★★★★★

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LM2940S-12 Packaging

LM2940S-12 FAQ

1. How to order LM2940S-12 on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that LM2940S-12 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the LM2940S-12. All suppliers must pass our qualification reviews before they can publish their products including LM2940S-12 on Heisener; we pay more attention to the channels and quality of LM2940S-12 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the LM2940S-12 price and inventory displayed accurate?

The price and inventory of LM2940S-12 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of LM2940S-12?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM2940S-12 we delivered, we will accept the replacement or return of the LM2940S-12 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of LM2940S-12.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as LM2940S-12 pin diagram, LM2940S-12 datasheet?

If you need any after-sales service, please do not hesitate to contact us.

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LM2940S-12 Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number	Manufacturer	Description	Stock
LM2940SX-12/NOPB D# V72:2272_07271079	Texas Instruments	LDO Regulator Pos 12V 1A 4-Pin(3+Tab) DDPAK T/R	0
LM2940S-12 D# V99:2348_07271070	Texas Instruments	LDO Regulator Pos 12V 1A 4-Pin(3+Tab) DDPAK Tube RoHS: Not Compliant	0
LM2940S-12/NOPB D# V99:2348_07271071	Texas Instruments	LDO Regulator Pos 12V 1A 4-Pin(3+Tab) DDPAK Tube	0
LM2940SX-12 D# V36:1790_07271078	Texas Instruments	LDO Regulator Pos 12V 1A 4-Pin(3+Tab) DDPAK T/R RoHS: Not Compliant	0

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

D# LM2940S-12/NOPB

Texas Instruments

LDO Regulator Pos 12V 1A 4-Pin(3+Tab) TO-263 Rail - Rail/Tube (Alt: LM2940S-12/NOPB)

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
LM2940S-12/NOPB	National Semiconductor Corporation		129
LM2940S-12	National Semiconductor Corporation		90
LM2940S 12 P+	National Semiconductor Corporation		100
LM2940SX-12	National Semiconductor Corporation		8

Part Number	Manufacturer	Description	Stock
LM2940SX-12/NOPB	Texas Instruments	Linear Voltage Regulator IC, Dropout Voltage, Vdo:0.5V, Input Voltage Primary Max:26V, Operating Temperature Range:-55C to +125C, Output Current Max:1000mA, Output Voltage:12V, Output Voltage Adjustable Min, Vout:12V , RoHS Compliant: Yes	0
LM2940SX-12	Texas Instruments	Linear Voltage Regulator IC, Dropout Voltage, Vdo:0.5V, Input Voltage Primary Max:26V, Operating Temperature Range:-55C to +125C, Output Current Max:1000mA, Output Voltage:12V, Output Voltage Adjustable Min, Vout:12V , RoHS Compliant: Yes	0
LM2940S-12/NOPB	Texas Instruments	IC, REG, LDO, 12V, 1A, TO263	385
LM2940S-12	Texas Instruments	IC, REG, LDO, 12V, 1A, TO263	385

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

D# C1S746202759464

Texas Instruments

LDO Regulator Pos 12V 1A 4-Pin(3+Tab) TO-263 Tube

RoHS: Compliant

pbFree: Yes

Min Qty: 1

Container: Tube

LM2940SX-12/NOPB

D# C1S746203170859

Texas Instruments

LDO Regulator Pos 12V 1A 4-Pin(3+Tab) TO-263 T/R

RoHS: Compliant

pbFree: Yes

Min Qty: 1

Container: Cut Tape

Part Number

Manufacturer

Description

Stock

LM2940SX-12/NOPB

Texas Instruments

Fixed 26V 12V 1V @ 1A TO-263-3 Dropout Regulators(LDO) RoHS

1511

Part Number

Manufacturer

Description

Stock

LM2940S12NOPB

National Semiconductor Corporation

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
LM2940SX-12 D# 296-LM2940SX-12CT-ND	Texas Instruments	IC REG LIN 12V 1A DDPAK/TO263-3	490
LM2940SX-12/NOPB D# LM2940SX-12/NOPBCT-ND	Texas Instruments	IC REG LIN 12V 1A DDPAK/TO263-3	3487
LM2940S-12/NOPB D# LM2940S-12/NOPB-ND	Texas Instruments	IC REG LIN 12V 1A DDPAK/TO263-3	594

Part Number

Manufacturer

Description

Stock

LM2940S-12

D# LM2940S-12

National Semiconductor Corporation

Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct

959

Part Number	Manufacturer	Description	Stock
LM2940SX-12	National Semiconductor Corporation	In stock shipping within 2days	782
LM2940S-12/NOPB	National Semiconductor Corporation	In stock shipping within 2days	358
LM2940S-12	National Semiconductor Corporation	In stock shipping within 2days	782

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

D# 3122077

Texas Instruments

IC, REG, LDO, 12V, 1A, TO263

RoHS: Compliant

Min Qty: 1

Container: Each

465

LM2940SX-12/NOPB

D# 3122079RL

Texas Instruments

LDO, FIXED, 5V, 0.5A, TO-263-3

RoHS: Compliant

Min Qty: 1

Container: Reel

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

Texas Instruments

Available

2048

Part Number	Manufacturer	Description	Stock
LM2940S-12/NOPB	NATIONAL 1	NEW AND ORGINAL. ISRAEL W.HOUSE	263
LM2940S-12	National Semiconductor Corporation	NEW AND ORGINAL. ISRAEL W.HOUSE	263
LM2940SX-12	National Semiconductor Corporation	NEW AND ORGINAL. ISRAEL W.HOUSE	263
LM2940SX-12/NOPB	National 1	NEW AND ORGINAL. ISRAEL W.HOUSE	263

Part Number	Manufacturer	Description	Stock
LM2940S12	National Semiconductor Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	4101
LM2940S12NOPB	National Semiconductor Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	2297
LM2940S12P	National Semiconductor Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	296
LM2940S12N0PB	National Semiconductor Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	8
LM2940S12SMDR	N/A	OEM/CM QUOTES ONLY \| NO BROKERS	24

Part Number	Manufacturer	Description	Stock
LM2940S12	Texas Instruments	OEM/CM ONLY	658
LM2940S12NOPB	Texas Instruments	OEM/CM ONLY	346
LM2940S12P	Texas Instruments	OEM/CM ONLY	933
LM2940S12PBF	Texas Instruments	OEM/CM ONLY	145

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

National Semiconductor Corporation

In Stock

Part Number

Manufacturer

Description

Stock

LM2940SX-12/NOPB

D# C131916

Texas Instruments

1511

Part Number

Manufacturer

Description

Stock

LM2940S-12

National Semiconductor Corporation

in stock - can ship the same day

Part Number

Manufacturer

Description

Stock

LM2940S-12

National Semiconductor Corporation

OEM/CM Immediate delivery

842

LM2940SX-12

National Semiconductor Corporation

OEM/CM Immediate delivery

1416

Part Number	Manufacturer	Description	Stock
LM2940SX-12/NOPB D# 926-LM2940SX-12/NOPB	Texas Instruments	LDO Voltage Regulators RoHS: Compliant	2698
LM2940S-12 D# 926-LM2940S-12	Texas Instruments	LDO Voltage Regulators RoHS: Not Compliant	90
LM2940SX-12 D# 926-LM2940SX-12	Texas Instruments	LDO Voltage Regulators RoHS: Not Compliant	100
LM2940S-12/NOPB D# 926-LM2940S-12/NOPB	Texas Instruments	LDO Voltage Regulators 1A LDO REG RoHS: Compliant	549

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

D# 33AH4137

Texas Instruments

IC, REG, LDO, 12V, 1A, TO263, Output Type:Fixed, Input Voltage Min:0V, Input Voltage Max:26V, Fixed Output Voltage Nom.:12V, Adjustable Output Voltage Min:-, Adjustable Output Voltage Max:-, Output Current:1A, Dropout Voltage RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Bulk

465

LM2940SX-12/NOPB

D# 26AJ7239

Texas Instruments

LDO, FIXED, 5V, 0.5A, TO-263-3, Output Type:Fixed, Input Voltage Min:6V, Input Voltage Max:26V, Fixed Output Voltage Nom.:12V, Adjustable Output Voltage Min:-, Adjustable Output Voltage Max:-, Output Current:1A, Dropout Voltage RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Part Number	Manufacturer	Description	Stock
LM2940SX-12/NOPB D# NS-LM2940SX-12/NOPB	Texas Instruments	OEM/CM ONLY	7487
LM2940SX-12 D# NS-LM2940SX-12	Texas Instruments	OEM/CM ONLY	2133
LM2940S-12/NOPB D# NS-LM2940S-12/NOPB	Texas Instruments	OEM/CM ONLY	7825
LM2940S-12 D# NS-LM2940S-12	Texas Instruments	OEM/CM ONLY	6492
LM2940S12 D# NS-LM2940S12	National Semiconductor Corporation	OEM/CM ONLY	7526

Part Number	Manufacturer	Description	Stock
LM2940S-12/NOPB	Texas Instruments	Voltage Regulator, +12V, Bi-Polar, 3 Pin, Plastic, SIP	106
LM2940SX-12	National Semiconductor Corporation		134
LM2940S-12	National Semiconductor Corporation	Voltage Regulator, +12V, Bi-Polar, 3 Pin, Plastic, SIP	11
LM2940SX-12/NOPB	Texas Instruments		106

Part Number	Manufacturer	Description	Stock
LM2940S-12	Texas Instruments	LM2940-N 1A Low Dropout Regulator RoHS: Not Compliant	7400
LM2940SX-12/NOPB	National Semiconductor Corporation	LM2940-N 1A Low Dropout Regulator RoHS: Compliant	128
LM2940SX-12	Texas Instruments	LM2940-N 1A Low Dropout Regulator RoHS: Not Compliant	125

Part Number	Manufacturer	Description	Stock
LM2940S12	National Semiconductor Corporation	OEM/CM ONLY	2352
LM2940S12NOPB	National Semiconductor Corporation	OEM/CM ONLY	1996
LM2940S12 P+	National Semiconductor Corporation	OEM/CM ONLY	492

Part Number

Manufacturer

Description

Stock

LM2940SX-12

National Semiconductor Corporation

IN stock Immediate delivery

1431

LM2940S-12

National Semiconductor Corporation

IN stock Immediate delivery

837

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

Texas Instruments

1-A, 26-V, high-PSRR, low-dropout voltage regulator

LM2940SX-12/NOPB

Texas Instruments

1-A, 26-V, high-PSRR, low-dropout voltage regulator

Part Number

Manufacturer

Description

Stock

LM2940S-12

National Semiconductor Corporation

shipping today

516

LM2940SX-12

National Semiconductor Corporation

shipping today

1853

Part Number

Manufacturer

Description

Stock

LM2940SX-12/NOPB

D# 53360077

Texas Instruments

LDO Regulator Pos 12V 1A 4-Pin(3+Tab) DDPAK T/R

LM2940S-12

D# 34863792

Texas Instruments

LDO Regulator Pos 12V 1A 4-Pin(3+Tab) DDPAK Tube

RoHS: Not Compliant

Part Number	Manufacturer	Description	Stock
LM2940S-12/NOPB	Texas Instruments	RFQ	6982
LM2940S-12	National Semiconductor Corporation	RFQ	14123
LM2940SX-12/NOPB	Texas Instruments	RFQ	6258
LM2940SX-12	mfr	RFQ	537

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

Texas Instruments

IC REG LDO 12V 1A DDPAK

870

LM2940SX-12

Texas Instruments

LM2940-N/LM2940C 1A Low Dropout Regulator | IC REG LIN 12V 1A DDPAK/TO263-3

14283

Part Number

Manufacturer

Description

Stock

LM2940S-12/NOPB

D# 3122077

Texas Instruments

IC, REG, LDO, 12V, 1A, TO263

RoHS: Compliant

Min Qty: 1

Container: Each

465

LM2940SX-12/NOPB

D# 3122079

Texas Instruments

LDO, FIXED, 5V, 0.5A, TO-263-3

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Quick Inquiry

LM2940S-12

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