LD1117V33 Regulator: Pinout, Applications and Datasheet

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Published: 18 October 2023 | Last Updated: 18 October 2023

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LD1117V33

LD1117V33

STMicroelectronics

Fixed 2.55mm Tin LD1117 PMIC 3 TO-220-3

Purchase Guide

Fixed 2.55mm Tin LD1117 PMIC 3 TO-220-3

The STMicroelectronics LD1117V33 is a low drop-out regulator (LDO regulator) that has several advantages such as a simplified schematic, small size, and no switching noises produced. This article will introduce its pinout, applications and datasheet.

LD1117V33 Description

The STMicroelectronics LD1117V33 is a low drop-out regulator (LDO regulator) that has several advantages such as a simplified schematic, small size, and no switching noises produced. It is able to provide up to 800mA of output current.

This regulator is available even in an adjustable version with a reference voltage (Vref) of 1.25V. For fixed versions, the following output voltages are offered: 1.2V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V, and 5.0V. The 2.85V type is ideal for SCSI-2 lines active termination.

The LD1117 series regulators are used to absorb lower voltage output, which is stable with temperature changes from the main power supply like battery-designed applications. They are supplied in SOT-223, DPAK, SO-8, and TO-220 packages


LD1117V33 Features

  • It has an overall accuracy of ±1 %.

  • Its typical dropout voltage at current is 1V @ 100mA, 1.05V @ 500mA, and 1.1V @ 800mA.

  • This device has a maximum power dissipation of 12000 mW.

  • This voltage regulation device’s single output can produce a current up to 1.3 A.

  • It has a low dropout voltage of 1V typ.

  • The 2.85V device performances are suitable for SCSI-2 active termination.

  • Output current up to 800 mA.

  • Fixed output voltage of: 1.2V, 1.8V, 2.5V, 3.3V, and 5.0V.

  • Adjustable version availability (V REF = 1.25 V).

  • Internal current and thermal limit.

  • Available in ± 1 % (at 25 °C) and 2 % in full temperature range.

  • Supply voltage rejection: 75 dB (typ.)


LD1117V33 Pinout

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Specifications

STMicroelectronics LD1117V33 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics LD1117V33.
  • Type
    Parameter
  • Lifecycle Status

    Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.

    ACTIVE (Last Updated: 6 months ago)
  • Factory Lead Time
    24 Weeks
  • Contact Plating

    Contact plating (finish) provides corrosion protection for base metals and optimizes the mechanical and electrical properties of the contact interfaces.

    Tin
  • Mount

    In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.

    Through Hole
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Through Hole
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    TO-220-3
  • Number of Pins
    3
  • Weight
    4.535924g
  • Manufacturer Package Identifier

    The Manufacturer Package Identifier is a unique code or label assigned by the manufacturer to identify a specific package or housing style of an electronic component. This identifier helps in distinguishing between different package types of the same component, such as integrated circuits, transistors, or diodes. It typically includes information about the package dimensions, lead configuration, and other physical characteristics of the component. The Manufacturer Package Identifier is crucial for ensuring compatibility and proper assembly of electronic components in various devices and circuits.

    8174627_revD
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    0°C~125°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tube
  • JESD-609 Code

    The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.

    e3
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    1 (Unlimited)
  • Number of Terminations
    3
  • ECCN Code

    An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.

    EAR99
  • Max Power Dissipation

    The maximum power that the MOSFET can dissipate continuously under the specified thermal conditions.

    12W
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    SINGLE
  • Number of Functions
    1
  • Terminal Pitch

    The center distance from one pole to the next.

    2.55mm
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    LD1117
  • Pin Count

    a count of all of the component leads (or pins)

    3
  • Number of Outputs
    1
  • Voltage - Input (Max)

    Voltage - Input (Max) is a parameter in electronic components that specifies the maximum voltage that can be safely applied to the input of the component without causing damage. This parameter is crucial for ensuring the proper functioning and longevity of the component. Exceeding the maximum input voltage can lead to electrical overstress, which may result in permanent damage or failure of the component. It is important to carefully adhere to the specified maximum input voltage to prevent any potential issues and maintain the reliability of the electronic system.

    15V
  • Output Voltage

    Output voltage is a crucial parameter in electronic components that refers to the voltage level produced by the component as a result of its operation. It represents the electrical potential difference between the output terminal of the component and a reference point, typically ground. The output voltage is a key factor in determining the performance and functionality of the component, as it dictates the level of voltage that will be delivered to the connected circuit or load. It is often specified in datasheets and technical specifications to ensure compatibility and proper functioning within a given system.

    3.3V
  • Output Type

    The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.

    Fixed
  • Max Output Current

    The maximum current that can be supplied to the load.

    1.3A
  • Nominal Supply Current

    Nominal current is the same as the rated current. It is the current drawn by the motor while delivering rated mechanical output at its shaft.

    5mA
  • Output Configuration

    Output Configuration in electronic components refers to the arrangement or setup of the output pins or terminals of a device. It defines how the output signals are structured and how they interact with external circuits or devices. The output configuration can determine the functionality and compatibility of the component in a circuit design. Common types of output configurations include single-ended, differential, open-drain, and push-pull configurations, each serving different purposes and applications in electronic systems. Understanding the output configuration of a component is crucial for proper integration and operation within a circuit.

    Positive
  • Power Dissipation

    the process by which an electronic or electrical device produces heat (energy loss or waste) as an undesirable derivative of its primary action.

    12W
  • Quiescent Current

    The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.

    10mA
  • Accuracy

    Accuracy in electronic components refers to the degree to which a measured value agrees with the true or accepted value. It evaluates the precision of a component in providing correct output or measurement under specified conditions. High accuracy indicates minimal deviation from the actual value, while low accuracy shows significant error in measurement. This parameter is crucial in applications where precise data is essential for reliable performance and decision-making.

    1 %
  • Output Voltage 1

    Output Voltage 1 is a parameter commonly found in electronic components such as voltage regulators, power supplies, and amplifiers. It refers to the voltage level that is produced or delivered by the component at a specific output terminal or pin. This parameter is crucial for determining the performance and functionality of the component in a circuit. The specified output voltage should meet the requirements of the connected devices or components to ensure proper operation and compatibility. It is important to carefully consider and verify the output voltage 1 specification when selecting and using electronic components in a design or application.

    3.3V
  • Number of Regulators

    A regulator is a mechanism or device that controls something such as pressure, temperature, or fluid flow. The voltage regulator keeps the power level stabilized. A regulator is a mechanism or device that controls something such as pressure, temperature, or fluid flow.

    1
  • Protection Features

    Protection features in electronic components refer to the built-in mechanisms or functionalities designed to safeguard the component and the overall system from various external factors or internal faults. These features are crucial for ensuring the reliability, longevity, and safety of the electronic device. Common protection features include overvoltage protection, overcurrent protection, reverse polarity protection, thermal protection, and short-circuit protection. By activating these features when necessary, the electronic component can prevent damage, malfunctions, or hazards that may arise from abnormal operating conditions or unforeseen events. Overall, protection features play a vital role in enhancing the robustness and resilience of electronic components in diverse applications.

    Over Current, Over Temperature
  • Voltage Dropout (Max)

    Voltage Dropout (Max) refers to the minimum voltage difference between the input and output of a voltage regulator or linear power supply needed to maintain proper regulation. It indicates the maximum allowable voltage drop across the device for it to function effectively without dropout. If the input voltage falls below this threshold, the output voltage may drop below the specified level, leading to potential operational issues for connected components. This parameter is critical for ensuring stable and reliable power delivery in electronic circuits.

    1.2V @ 800mA
  • PSRR

    PSRR stands for Power Supply Rejection Ratio. It is a measure of how well a device, such as an amplifier or a voltage regulator, can reject variations in the power supply voltage. A high PSRR value indicates that the device is able to maintain its performance even when the power supply voltage fluctuates. This parameter is important in ensuring stable and reliable operation of electronic components, especially in applications where the power supply voltage may not be perfectly regulated. A good PSRR helps to minimize noise and interference in the output signal of the device.

    75dB (120Hz)
  • Dropout Voltage

    Dropout voltage is the input-to-output differential voltage at which the circuit ceases to regulate against further reductions in input voltage; this point occurs when the input voltage approaches the output voltage.

    1.1V
  • Nominal Input Voltage

    The actual voltage at which a circuit operates can vary from the nominal voltage within a range that permits satisfactory operation of equipment. The word “nominal” means “named”.

    3.3V
  • Dropout Voltage1-Nom

    Dropout Voltage1-Nom is a parameter commonly found in voltage regulators and power management ICs. It refers to the minimum voltage difference required between the input voltage and the output voltage for the regulator to maintain regulation. In other words, it is the minimum voltage drop that the regulator can handle while still providing a stable output voltage. This parameter is important to consider when designing power supply circuits to ensure that the regulator can operate within its specified voltage range and maintain proper regulation under varying load conditions.

    1.1V
  • Min Output Voltage

    Min Output Voltage refers to the lowest voltage level that an electronic component, such as a voltage regulator or power supply, can provide reliably under specified conditions. It indicates the minimum threshold required for proper operation of connected devices. Operating below this voltage may lead to device malfunction or failure to operate as intended.

    3.3V
  • Voltage Tolerance-Max

    Voltage Tolerance-Max is a parameter in electronic components that specifies the maximum allowable deviation from the rated voltage without causing damage or malfunction. It indicates the range within which the component can safely operate without being affected by voltage fluctuations. This parameter is crucial for ensuring the reliability and longevity of the component in various electrical systems. Manufacturers provide this specification to help users understand the limits within which the component can function properly and to prevent potential failures due to overvoltage conditions.

    2%
  • Nominal Output Voltage

    Nominal Output Voltage refers to the specified or intended voltage level that an electronic component or device is designed to provide as output under normal operating conditions. It is a crucial parameter that indicates the expected voltage level that the component will deliver to the connected circuit or load. This value is typically specified by the manufacturer and is important for ensuring proper functionality and compatibility within a system. It is important to note that the actual output voltage may vary slightly due to factors such as load variations, temperature changes, and other environmental conditions.

    3.3V
  • Input Bias Current

    Input Bias Current refers to the small amount of current that flows into the input terminals of an electronic component, such as an operational amplifier. It is primarily caused by the input impedance of the device and the characteristics of the transistors within it. This current is crucial in determining the accuracy of the analog signal processing, as it can affect the level of voltage offset and signal integrity in the application. In many precise applications, minimizing input bias current is essential to achieve optimal performance.

    5mA
  • Output Voltage Accuracy

    Output voltage accuracy is a crucial parameter in electronic components, especially in devices like voltage regulators and power supplies. It refers to how closely the actual output voltage matches the specified or desired voltage level. This parameter is typically expressed as a percentage of the nominal output voltage. A higher accuracy value indicates that the output voltage is more consistent and reliable, which is important for ensuring proper functioning of electronic circuits and devices. Manufacturers often provide specifications for output voltage accuracy to help users select components that meet their requirements for precision and performance.

    1 %
  • Height
    9.15mm
  • Length
    10.4mm
  • Width
    4.6mm
  • REACH SVHC

    The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.

    No SVHC
  • Radiation Hardening

    Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.

    No
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    ROHS3 Compliant
  • Lead Free

    Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.

    Lead Free
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LD1117V33 CAD Model

Symbol

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Footprint

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3D Model

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LD1117V33 Applications

  • Power supply for portable devices: The LD1117V33 can be used to provide a stable power supply for portable devices such as smartphones, tablets, and laptops.

  • Voltage regulation for microcontrollers and digital circuits: The LD1117V33 can be used to provide a stable voltage supply for microcontrollers and other digital circuits, ensuring reliable operation.

  • Active termination for SCSI-2 lines: The 2.85V version of the LD1117V33 is ideal for active termination of SCSI-2 lines.

  • Power management in automotive applications: The LD1117V33 can be used in automotive applications to manage power supply and ensure stable operation of various electronic components


LD1117V33 Alternatives

Part Number

Description

Manufacturer

LD1117F33

3.3V FIXED POSITIVE LDO REGULATOR, 1.2V DROPOUT, PSFM3, TO-220FM, 3 PIN

STMicroelectronics


LD1117V33 Manufacturer

STMicroelectronics is a global semiconductor company that provides solutions to make a positive impact on people’s lives. With over 50,000 employees and 200,000 customers, they create microchips embedded in products like electric cars, smartphones, and data centers. Their innovations drive a smarter, greener, and more sustainable future1. They are the largest European semiconductor contract manufacturing and design company, formed from the merger of French Thomson Semiconducteurs and Italian SGS Microelettronica in 1987.


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Frequently Asked Questions

What is the accuracy of the LD1117V33?

The overall accuracy of the LD1117V33 is ±1 %.

What is the maximum power dissipation of the LD1117V33?

The maximum power dissipation of the LD1117V33 is 12000 mW.

What packages is the LD1117V33 supplied in?

The LD1117V33 is supplied in SOT-223, DPAK, SO-8 and TO-220 packages.
LD1117V33

STMicroelectronics

In Stock: 1545

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