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LM2940S-12/NOPB PMIC - Voltage Regulators - Linear by Texas Instruments

LM2940S-12/NOPB is a PMIC - Voltage Regulators - Linear from Texas Instruments in TO263 packaging. It is commonly reviewed for IC REG LIN 12V 1A DDPAK/TO263-3. This page lists current TrustCompo stock, tier pricing, package data, datasheet access, compliance attributes, Hong Kong warehouse shipping options, payment confirmation, and RFQ options for buyers verifying this exact ordering code.

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LM2940S-12/NOPB PMIC - Voltage Regulators - Linear by Texas Instruments | TrustCompo
Pictures are for reference only. Please contact us for the latest pictures.
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Key specifications

Part Number

LM2940S-12/NOPB

Internal code

TCE000114848

Package

TO263

Manufacturer
Texas Instruments

Key specifications

Series

-

Min Quantity

1

Description

IC REG LIN 12V 1A DDPAK/TO263-3

key Attributes

-

Trust signals

Quality and trust signals

Review TrustCompo quality credentials, traceability support, anti-counterfeit handling, and inspection controls before sending an RFQ.

4 certifications
  • ISO 9001

    Quality management processes for more consistent sourcing and handling.

  • AS9120B

    Aerospace-focused distribution controls for traceability and reliability.

  • ISO 14001

    Environmental management discipline across warehouse and operating workflows.

  • ESD Control

    Electrostatic handling standards to help protect sensitive components.

RFQ checklist

Order process

Confirm the core buying details for LM2940S-12/NOPB before RFQ, PO release, and shipment planning.

  1. 1

    Confirm MPN

    Use the exact part number, manufacturer, package, and approval constraints in the RFQ.

  2. 2

    Check stock and price

    Verify live availability, MOQ, lead time, final unit price, and tax terms before PO release.

  3. 3

    Align documents

    Confirm datasheet, CoC, traceability, lifecycle notes, and inspection scope when required.

  4. 4

    Arrange shipment

    Release the PO and align DHL, FedEx, UPS, or buyer forwarder shipment from Hong Kong.

Before PO release

Part confirmation

  • Exact MPN confirmed: LM2940S-12/NOPB
  • Package to verify: TO263

Commercial confirmation

  • Live stock and lead time confirmed by RFQ
  • Final price and tax terms confirmed before PO release

Fulfillment & documents

  • Ship-from location: Hong Kong warehouse
  • Shipping method: DHL, FedEx, UPS, or buyer forwarder account

Product overview

Product overview

Review the sourcing context for LM2940S-12/NOPB from Texas Instruments, including product identity, application fit, package notes, and purchasing considerations.

The LM2940S-12/NOPB is a low dropout (LDO) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 12V with a maximum output current of 1A. This device is particularly useful in applications where a stable voltage is required despite variations in input voltage or load conditions.

Key Features:

  1. Output Voltage: The LM2940S-12/NOPB provides a fixed output voltage of 12V, making it suitable for powering various electronic devices and circuits that require this specific voltage level.
  2. Low Dropout Voltage: The regulator features a low dropout voltage of typically 0.5V at full load (1A), which allows it to maintain regulation even when the input voltage is only slightly above the output voltage. This is particularly beneficial in battery-powered applications where maximizing battery life is crucial.
  3. Current Capability: It can deliver up to 1A of output current, making it suitable for a range of applications, from simple circuits to more demanding loads.
  4. Thermal Protection: The LM2940S-12/NOPB includes built-in thermal shutdown protection, which prevents the device from overheating and potentially damaging itself or the connected load.
  5. Short-Circuit Protection: This regulator also features short-circuit protection, ensuring that it can withstand fault conditions without sustaining damage.
  6. Low Quiescent Current: The device has a low quiescent current, which helps improve efficiency, especially in battery-operated devices.
  7. Package Type: The LM2940S-12/NOPB is available in a TO-220 package, which provides good thermal performance and allows for easy mounting on a heat sink if necessary.
  8. Operating Temperature Range: It operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for various environmental conditions.
  9. Input Voltage Range: The input voltage range for the LM2940S-12/NOPB is typically from 14V down to 5V, allowing for flexibility in design and application.
  10. Capacitor Requirements: The regulator requires a minimum output capacitor for stability, typically a 22µF tantalum or aluminum electrolytic capacitor, which helps in maintaining the output voltage during transient load conditions.

Applications:

The LM2940S-12/NOPB is widely used in various applications, including:

  • Power supplies for microcontrollers and digital circuits.
  • Automotive electronics, where stable voltage is critical.
  • Battery-powered devices, where low dropout and efficiency are essential.
  • Communication equipment and other consumer electronics.

Conclusion:

The LM2940S-12/NOPB from Texas Instruments is a reliable and efficient voltage regulator that provides a stable 12V output with low dropout characteristics. Its robust protection features and wide operating range make it a versatile choice for a variety of electronic applications.

Technical parameters

Parameters

Compare grouped LM2940S-12/NOPB parameters from Texas Instruments, including package, series, key attributes, and technical values used for engineering and sourcing review.

  • Product Parameter

    Output Configuration

    Positive

  • Product Parameter

    Number Of Regulators

    1

  • Product Parameter

    Nominal Output Voltage

    12V

  • Product Parameter

    Protection Features

    Over Current, Over Temperature, Reverse Polarity, Short Circuit

  • Product Parameter

    Output Voltage 1

    12V

  • Product Parameter

    Voltage - Input (Max)

    26V

LM2940S-12/NOPB Product Parameter
ParameterValue
Output Configuration

Specifies the topology of the output stage, such as push-pull, open collector, or half-bridge. This determines how the device drives loads and interfaces with external circuitry. Verify against the datasheet to ensure compatibility with your application's requirements.

Positive
Number Of Regulators

Specifies how many independent voltage regulator circuits are integrated in the component. Compare this when selecting multi-output power management ICs. Verify against the datasheet to ensure the regulator count matches your design requirements.

1
Nominal Output Voltage

Specifies the designed output voltage level under standard operating conditions. Compare this value with your circuit requirements and verify against the datasheet's tolerance and load regulation to ensure compatibility with your application.

12V
Protection Features

Built-in safeguards that prevent damage from overcurrent, overvoltage, short circuit, or thermal overload. Compare these features to ensure the component meets your application's safety and reliability requirements. Always verify the specific protection mechanisms in the datasheet.

Over Current, Over Temperature, Reverse Polarity, Short Circuit
Output Voltage 1

Specifies the first regulated output voltage of a multi-output power supply or DC-DC converter. Engineers compare this value to the load requirements and verify it against the datasheet's tolerance and ripple specifications to ensure proper system operation.

12V
Voltage - Input (Max)

Specifies the highest input voltage the component can safely handle without damage or malfunction. Compare this value with your power supply output and any transient spikes. Always verify against the datasheet's absolute maximum ratings to ensure reliable operation.

26V
Dropout Voltage 1 (Nominal)

Nominal dropout voltage for the first output. This is the minimum input-to-output differential required to maintain regulation. Compare with your operating conditions and verify against the datasheet for load and temperature variations.

0.5V
Voltage Dropout (Max)

Maximum dropout voltage is the minimum input-to-output voltage difference required for a regulator to maintain regulation. Lower dropout improves efficiency in battery-powered designs. Verify this parameter against the datasheet for your load current and temperature range.

1V @ 1A
Power Supply Rejection Ratio

Indicates how well a component attenuates power supply noise from input to output. Compare values for stable operation in sensitive analog circuits. Verify against datasheet conditions, as PSRR varies with frequency and load.

66dB (120Hz)
Dropout Voltage

Dropout voltage is the minimum input-to-output differential required for a regulator to maintain regulation. Compare this value when selecting LDOs for battery-powered or low-headroom designs. Verify it against the datasheet to ensure your input supply stays above the dropout threshold under load.

500mV
Total Dose

Total ionizing dose tolerance for radiation-hardened components. Indicates maximum cumulative radiation exposure before performance degrades. Critical for aerospace, nuclear, and medical applications. Verify against datasheet for mission-specific radiation requirements.

4.44mm
LM2940S-12/NOPB Product Attribute
ParameterValue
Part Status

Lifecycle status of the part, such as active or obsolete. Indicates availability and long-term support from the manufacturer. Check this before design-in to avoid last-time buys or supply disruptions. Verify with the datasheet or distributor for current status.

Active
Packaging

Indicates the form of delivery for the component, such as tape and reel, tube, or tray. This affects handling, storage, and assembly processes. Verify the packaging type matches your production requirements and equipment compatibility.

Tube
Lead Free

Indicates whether the component is manufactured without lead, complying with RoHS and similar regulations. Check this attribute to ensure environmental compliance for your market. Verify against the datasheet for exact material declarations.

Contains Lead
Lifecycle Status

Current stage in the product's lifecycle, such as Active, Obsolete, or End of Life. This indicates availability and long-term supply risk. Check this before designing in a part to ensure it will be available for your product's production lifetime.

ACTIVE (Last Updated: 3 days ago)
Mounting Type

Specifies how the component is attached to the PCB, such as through-hole or surface mount. This affects assembly processes, thermal performance, and mechanical strength. Buyers should verify compatibility with their manufacturing capabilities and design requirements.

Surface Mount
Factory Lead Time

Indicates the typical duration from order confirmation to shipment from the manufacturer's facility. This helps you plan production schedules and inventory. Verify current lead times with your distributor or supplier, as they may vary based on order quantity, product availability, and market conditions.

6 Weeks
Categories

Lists the product categories or classifications assigned to this component, such as connectors, capacitors, or modules. This helps in filtering and comparing similar parts. Review the categories to ensure the component fits your application and to find alternative parts in the same class.

Integrated Circuits (ICs)
Terminal Form

Describes the physical configuration of the component's leads or pads, such as through-hole, surface mount, or gull-wing. This affects PCB layout, soldering process, and mechanical fit. Confirm compatibility with your assembly method and footprint.

GULL WING
Operating Temperature

Specifies the ambient temperature range within which the component reliably functions. Compare this with your application's thermal environment to ensure proper operation. Always verify against the datasheet for derating curves and maximum ratings.

-40°C~125°C
Manufacturer

Identifies the company that designed and produced the component. Buyers often filter by manufacturer to ensure brand reliability, quality standards, and supply chain consistency. Verify the manufacturer against the datasheet and official packaging to avoid counterfeit parts.

Texas
Peak Reflow Temperature (Cel)

Maximum temperature during reflow soldering that the component can withstand. This is critical for solder joint reliability and preventing damage. Verify that the peak reflow temperature is compatible with your soldering profile and the component's moisture sensitivity level.

245
Subcategory

A more specific classification within the main product category, such as 'Ceramic Capacitor' under 'Capacitors'. This helps narrow down search results and compare similar components. Use it to filter products with similar characteristics and intended applications.

Other Regulators
Sub-Categories

Indicates the specific product subcategories or classifications within the broader component family. Helps narrow down search results and identify the exact type of component needed for your design. Review the subcategory to ensure compatibility with your application.

PMIC - Voltage Regulators - Linear
Output Type

Specifies the electrical form of the output signal, such as digital, analog, or open collector. This determines how the component interfaces with your circuit. Verify the output type against your system requirements and the datasheet to ensure proper signal compatibility and avoid logic level mismatches.

Fixed
Weight

Specifies the physical weight of the electronic component, important for logistics, shipping cost, and mechanical design. Verify the exact weight in the datasheet or packaging information, as it may vary with packaging type and quantity.

4.535924g
Number Of Functions

Specifies the count of independent functions or channels integrated into a single component package. This helps engineers determine if the part can handle multiple signal paths or operations simultaneously. Verify against the datasheet to ensure the device meets your circuit's functional requirements.

1
Contact Plating

Specifies the metal coating applied to the contact surfaces of connectors, switches, or relays. This finish affects conductivity, corrosion resistance, and durability. Engineers should verify the plating material and thickness against the datasheet to ensure reliable performance in the intended environment.

Tin
Radiation Hardening

Indicates if the component is designed to withstand ionizing radiation in space, nuclear, or high-energy physics applications. Compare radiation-tolerant vs. radiation-hardened parts for mission-critical designs. Verify the total ionizing dose (TID) and single-event effect (SEE) ratings in the datasheet.

No
Mounting Type

Specifies how the component attaches to the PCB or assembly, such as surface mount, through-hole, or chassis mount. This affects soldering process, mechanical stability, and thermal performance. Verify compatibility with your board layout and assembly capabilities.

Surface Mount
Pb-Free Code

Indicates whether the component is lead-free per RoHS or other directives. Buyers use this to verify environmental compliance and avoid restricted substances. Always confirm with the datasheet or certificate of compliance.

yes
Technology

Manufacturing technology or process used for the component, such as thin film, thick film, or semiconductor process. Affects performance, stability, and cost. Confirm the technology matches your application requirements and environmental conditions.

BIPOLAR
Number Of Pins

Total number of pins or contacts on the component. This determines the footprint and mating connector requirements. Always match the pin count to your PCB layout and connector specification to ensure proper electrical and mechanical connection.

3
Terminal Position

Position of the terminals on the package, such as dual-in-line, gull-wing, or J-lead. This affects PCB layout, soldering, and thermal performance. Engineers must ensure the terminal position matches the footprint and assembly capabilities of their manufacturing line.

SINGLE
Max Output Current

Specifies the highest continuous current the device can supply at its output without exceeding thermal or electrical limits. Compare this value with your load requirements and derating curves. Always verify against the datasheet for your operating conditions.

1A
Number Of Outputs

Specifies how many independent output channels the component provides. Compare this when selecting power supplies, drivers, or modules to ensure the device can drive all required loads. Always verify against the datasheet for exact output configuration.

1
Quiescent Current (Iq)

Quiescent current is the supply current consumed by the device when it is enabled but not driving a load. It affects battery life in portable applications. Compare Iq values for low-power designs and verify against the datasheet's test conditions.

10mA
Terminal Pitch

Terminal pitch is the center-to-center distance between adjacent leads or pads on a component. It determines PCB layout compatibility and soldering feasibility. Verify against the datasheet to ensure your footprint matches the component's actual lead spacing.

2.54mm
Number Of Terminations

Indicates the total number of electrical connection points on the component, such as pins or pads. This is critical for PCB footprint design and assembly. Verify it matches the package specification to ensure proper soldering and connectivity.

3
Current Rating

Specifies the maximum continuous current the component can safely carry under specified conditions. Compare this value with your circuit's expected load to ensure reliable operation. Always verify against the datasheet for temperature derating and mounting considerations.

1A
Output Voltage

Specifies the regulated voltage level available at the output pin under specified load and input conditions. Compare this value with your circuit requirements and verify against the datasheet's tolerance and temperature derating.

12V
Pin Count

Total number of pins or terminals on the component package. Essential for footprint design, PCB layout, and connector mating. Verify against the datasheet to ensure compatibility with your board and assembly process.

4
Height

Physical height of the component, measured from the mounting surface to the topmost point. This dimension is critical for clearance in compact assemblies and for ensuring proper fit within enclosures. Always verify against the datasheet for tolerance and mounting considerations.

4.83mm
Quiescent Current

Quiescent current is the current drawn by the device when it is in standby or no-load condition. It affects battery life in portable applications. Compare this value across similar components to ensure low power consumption. Always verify against the datasheet for your specific operating conditions.

15mA
Voltage Tolerance-Max

Specifies the maximum allowable deviation from the nominal voltage rating for a component. This parameter is critical for ensuring stable operation in power supply and regulation circuits. Always verify this value against the datasheet to prevent overvoltage conditions that could damage the component or reduce system reliability.

5%
Package / Case

Physical package or case type of the component, defining its dimensions, mounting style, and thermal characteristics. Common types include SMD, through-hole, BGA, and QFN. Choose the package that fits your PCB layout and assembly process. Verify the exact package code in the datasheet for footprint compatibility.

TO-263-4, D2Pak (3 Leads + Tab), TO-263AA
Width

Physical width of the component body, typically in millimeters. Essential for PCB footprint design and mechanical fit. Verify against the datasheet to ensure proper clearance and compatibility with your board layout and enclosure.

8.41mm
Length

Specifies the physical length of the component body, typically in millimeters. This dimension is critical for PCB layout and mechanical fit. Verify against the datasheet to ensure proper clearance and alignment in your design.

10.18mm
Base Part Number

Identifies the core product family without package, grade, or option suffixes. Use this to compare equivalent components across manufacturers and to locate the primary datasheet. Verify the full ordering code against the manufacturer's specification before design-in.

LM2940
Min Input Voltage

Minimum voltage required at the input for the component to operate correctly. Below this level, the device may not function or may produce incorrect outputs. Verify that your power supply provides at least this voltage under all load conditions.

13.6V
Manufacturer'S Part No.

The unique part number assigned by the original component manufacturer. Use this to cross-reference datasheets, verify specifications, and ensure the exact component matches your design requirements. Always confirm the number against the manufacturer's official documentation.

LM2940S-12/NOPB
LM2940S-12/NOPB Export Classifications & Environmental
ParameterValue
JESD-609 Code

This code indicates the terminal finish material per JESD-609 standard. It helps identify the plating type for soldering compatibility and environmental compliance. Check the datasheet for the exact code and its meaning.

e3
RoHS Status

Indicates whether the component complies with the EU RoHS directive restricting hazardous substances. Buyers should verify this status for regulatory compliance and market access. Check the datasheet or certificate for exact compliance details.

ROHS3 Compliant
REACH SVHC

Indicates whether the product contains substances of very high concern as per the REACH regulation. Buyers should verify this for compliance with EU environmental standards, especially when exporting to Europe. Check the manufacturer's declaration or datasheet for accurate SVHC status.

No SVHC
Moisture Sensitivity Level (MSL)

Indicates the floor life of a component before it must be baked prior to soldering. Higher levels require stricter handling and shorter exposure times. Verify the MSL rating in the datasheet to ensure proper storage and assembly conditions.

3 (168 Hours)
ECCN Code

Export Control Classification Number assigned by the U.S. Commerce Department. It determines export licensing requirements for electronic components. Verify the ECCN against the manufacturer's datasheet or export compliance documentation before shipping internationally.

EAR99

Notice documents

PCN / product notice documents

0 documents

No public PCN / PDN records currently displayed

No public product notice document is currently displayed for LM2940S-12/NOPB. Confirm PCN, PDN, EOL, date code, and lifecycle status during RFQ before production purchase.

Common questions

Product FAQ

Targeted answers for buyers verifying the exact LM2940S-12/NOPB ordering code, packaging, stock, datasheet, and replacement path.

What does LM2940S-12/NOPB mean?

LM2940S-12/NOPB is the exact ordering code listed for a PMIC - Voltage Regulators - Linear component from Texas Instruments. The current package reference is TO263, with listed context including IC REG LIN 12V 1A DDPAK/TO263-3. Buyers should use the full code when requesting stock, price, datasheet, or compliance confirmation.

How should buyers verify the LM2940S-12/NOPB ordering code?

Treat LM2940S-12/NOPB as the full ordering code during RFQ and engineering review. Confirm the listed TO263 package, manufacturer documentation from Texas Instruments, datasheet ordering table, reel or packing details, and any customer approval constraints before substitution or PO release.

What package is LM2940S-12/NOPB supplied in?

LM2940S-12/NOPB is currently listed with package reference TO263 from Texas Instruments. Buyers should confirm the manufacturer package drawing, footprint, pinout, tape-and-reel details, and receiving requirements before approval.

Is LM2940S-12/NOPB currently available?

LM2940S-12/NOPB is currently marked with stock availability on this page. Before ordering, confirm the package (TO263), listed stock (42316), available quantity (42316), required quantity, lead time, final price, compliance needs, and exact ordering code match through RFQ.

Where can I compare LM2940S-12/NOPB alternatives?

A mapped alternative list is not currently published for LM2940S-12/NOPB. Send an RFQ with the target quantity, package constraints, and approval requirements so TrustCompo can help review credible replacement options.