LT1939EDD#PBF PMIC - Voltage Regulators - Linear + Switching by Analog Devices Inc

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.

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.

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.

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.

Harmonized Tariff Schedule of the United States code for customs classification. Essential for import/export documentation and duty calculation. Verify the correct code with a trade specialist to avoid customs delays.

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.

Specifies the plating material on component terminals, affecting solderability, corrosion resistance, and long-term reliability. Compare finishes like tin, gold, or silver for your assembly process and environmental requirements. Verify against datasheet for compliance.

Defines the control method used by a power management IC, such as voltage mode, current mode, or hysteretic. This affects transient response, stability, and external component selection. Ensure the mode matches your application's performance needs.

Specifies the switching regulator control method, such as PWM, PFM, or burst mode. This affects efficiency, noise, and transient response. Engineers should verify the technique against the datasheet to ensure it matches the application's power requirements and EMI constraints.

Select this category when the analog integrated circuit does not fit standard classifications like op-amps, comparators, or regulators. Verify the exact function and pinout in the datasheet to ensure compatibility with your circuit design and performance requirements.

Specifies the typical input voltage level for which the component is designed to operate. Compare this value with your power supply output to ensure compatibility. Always verify against the datasheet for absolute maximum ratings and operating conditions.

Specifies the internal circuit architecture of the power converter, such as flyback, forward, or buck. This determines efficiency, isolation, and component stress. Engineers must verify topology against the datasheet to ensure it matches the intended application and operating conditions.

Indicates the switching frequency of a power converter or regulator. Higher frequencies allow smaller magnetics but may increase losses. Compare with your design's efficiency and EMI requirements, and verify the actual range in the datasheet.

Specifies the range of DC or AC input voltage the component requires for proper operation. Engineers compare this to the system power rail to ensure compatibility. Always verify against the datasheet's absolute maximum ratings to prevent damage.

Maximum vertical dimension from the seating plane to the top of the component body. Critical for PCB clearance and enclosure fit. Verify against the datasheet when designing mechanical constraints or checking compatibility with mating parts.

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.

Shows whether the component complies with the EU REACH regulation. Essential for legal market access in Europe. Check the manufacturer's latest statement to confirm that no substances of very high concern are present above the threshold.

Export Control Classification Number assigned by the U.S. government. Determines whether the component requires an export license. Essential for international trade compliance. Verify the ECCN with the manufacturer or supplier before shipping to avoid legal issues.

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.

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.

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.

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.

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.

Published indicates the date when the product data was released or updated in the catalog. It helps buyers assess the freshness of the information and whether the component is current or possibly obsolete. Check the datasheet for the latest revisions.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Mounting type: surface mount or through-hole. Surface mount components are placed directly on the PCB, saving space and enabling automated assembly. Through-hole components offer stronger mechanical bonds. Verify the mounting style matches your PCB design and assembly process.

Maximum time the component can be exposed to the peak reflow temperature during soldering. Exceeding this duration may cause damage or degrade reliability. Ensure your soldering profile stays within this limit and check the datasheet for exact conditions.

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.

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.

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.

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.

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.

Current supplied at the output, indicating the load-driving capability of the component. This is crucial for ensuring the component can drive downstream circuitry without overheating or voltage drop. Compare with your load requirements and check the datasheet for maximum ratings.

Indicates whether the device includes a power sequencing feature. This is important for multi-rail systems where proper startup and shutdown order prevents latch-up or damage. Verify the sequencing order and timing against your system requirements.

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.

Specifies the voltage range within which the component operates correctly. Check the datasheet to ensure your power supply meets the minimum and maximum limits, as exceeding them can damage the device or cause malfunction.

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.

Maximum voltage that can be applied to the input without causing damage or malfunction. Exceeding this limit may lead to breakdown or reduced reliability. Always compare with your supply voltage and check the datasheet for absolute maximum ratings.

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.

Operating frequency of the component, typically the clock or switching frequency. This determines the speed of operation and affects power dissipation and signal integrity. Verify the frequency range against your application's requirements and the datasheet specifications.

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.

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.

Specifies the nominal voltage level provided by the second output of a multi-output power supply or DC-DC converter. Engineers compare this value to the load requirements to ensure proper system operation. Always verify the output voltage tolerance and regulation against the datasheet.

Specifies the nominal voltage and maximum current available on the second output of a multi-output power supply or converter. Compare these values with your load requirements and verify against the datasheet for regulation and derating.

Specifies the nominal or regulated output voltage provided on the first output channel of a multi-channel power supply or DC-DC converter. Verify this value against the datasheet to ensure it meets your circuit's requirements, especially for precision or load-sensitive applications.

Specifies the nominal output voltage and maximum output current for the first regulated output. Compare these values with your load requirements and verify them against the datasheet's electrical characteristics, especially for power supply modules and DC-DC converters.