LT3045:High Performance Regulator

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Published: 22 March 2022 | Last Updated: 22 March 2022

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LT3045HDD#PBF

LT3045HDD#PBF

Linear Technology/Analog Devices

Enable, Power Good, Soft Start Programmable 0.5mm LT3045 PMIC 10 10-WFDFN Exposed Pad

Purchase Guide

Enable, Power Good, Soft Start Programmable 0.5mm LT3045 PMIC 10 10-WFDFN Exposed Pad

The LT3045 is a high performance low dropout linear regulator with LTC's ultralow noise and ultrahigh PSRR architecture. Check out more details on the following article.

LT3045 Description

The LT3045 is a high performance low dropout linear regulator with LTC's ultralow noise and ultrahigh PSRR architecture, designed to power noise sensitive applications. The LT3045, which is designed as a precision current reference followed by a high performance voltage buffer, may be readily paralleled to minimize noise, boost output current, and spread heat on the PCB. In addition to the LT3045 feature set, the LT3045-1 includes a VIOC tracking function that controls an upstream switching converter to maintain a constant voltage across the LT3045-1 and therefore reduce power consumption.


LT3045 Pinout

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LT3045 CAD Mode

Symbol

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Footprint

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3D Model


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LT3045 Features

 Ultralow RMS Noise: 0.8µVRMS (10Hz to 100kHz)

 Ultralow Spot Noise: 2nV/√Hz at 10kHz

 Ultrahigh PSRR: 76dB at 1MHz

 Output Current: 500mA

 Wide Input Voltage Range: 1.8V to 20V

 Single Capacitor Improves Noise and PSRR

 100µA SET Pin Current: ±1% Initial Accuracy

 VIOC Pin Controls Upstream Regulator to Minimize Power Dissipation

 Single Resistor Programs Output Voltage

 Programmable Current Limit

 Low Dropout Voltage: 260mV

 Output Voltage Range: 0V to 15V

 Programmable Power Good

 Fast Start-Up Capability

 Precision Enable/UVLO

 Parallelable for Lower Noise and Higher Current

 Internal Current Limit with Foldback

 Minimum Output Capacitor: 10µF Ceramic

 Reverse Battery and Reverse Current Protection

 12-Lead MSOP and 3mm × 3mm DFN Packages


LT3045 Functional Block Diagram

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Specifications

Linear Technology/Analog Devices LT3045HDD#PBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology/Analog Devices LT3045HDD#PBF.
  • Type
    Parameter
  • Factory Lead Time
    8 Weeks
  • 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.

    Surface Mount
  • Package / Case

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

    10-WFDFN Exposed Pad
  • Surface Mount

    having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

    YES
  • 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.

    -40°C~150°C TJ
  • 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
  • Published
    2011
  • 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
    10
  • 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.

    DUAL
  • Terminal Form

    Occurring at or forming the end of a series, succession, or the like; closing; concluding.

    NO LEAD
  • Number of Functions
    1
  • Terminal Pitch

    The center distance from one pole to the next.

    0.5mm
  • 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.

    LT3045
  • Pin Count

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

    10
  • Current - Supply (Max)

    The parameter "Current - Supply (Max)" in electronic components refers to the maximum amount of current that a component can draw from a power supply for its operation. This parameter is critical for ensuring that the power supply can adequately meet the demands of the component without causing damage or malfunction. Exceeding this specified maximum current can lead to overheating, reduced performance, or failure of the component. It is essential to consider this value when designing or integrating components into electronic circuits to maintain reliability and functionality.

    25mA
  • 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.

    20V
  • 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.

    Programmable
  • 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
  • Control Features

    Control features in electronic components refer to specific functionalities or characteristics that allow users to manage and regulate the operation of the component. These features are designed to provide users with control over various aspects of the component's performance, such as adjusting settings, monitoring parameters, or enabling specific modes of operation. Control features can include options for input/output configurations, power management, communication protocols, and other settings that help users customize and optimize the component's behavior according to their requirements. Overall, control features play a crucial role in enhancing the flexibility, usability, and performance of electronic components in various applications.

    Enable, Power Good, Soft Start
  • Voltage - Output (Min/Fixed)

    Voltage - Output (Min/Fixed) refers to the minimum fixed output voltage level that an electronic component, such as a voltage regulator or power supply, is designed to provide under specified load conditions. This parameter ensures that the device consistently delivers a reliable voltage that meets the requirements of the connected circuits or components. It is critical for applications where stable and predictable voltage is necessary for proper operation.

    0V
  • 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, Reverse Polarity, Under Voltage Lockout (UVLO)
  • Current - Quiescent (Iq)

    The parameter "Current - Quiescent (Iq)" in electronic components refers to the amount of current consumed by a device when it is in a quiescent or idle state, meaning when it is not actively performing any tasks or operations. This parameter is important because it represents the baseline power consumption of the device even when it is not actively being used. A lower quiescent current (Iq) value is desirable as it indicates that the device is more energy-efficient and will consume less power when not in use, which can help extend battery life in portable devices and reduce overall power consumption in electronic systems. Designers often pay close attention to the quiescent current specification when selecting components for low-power applications or battery-operated devices.

    20μA
  • 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.

    0.45V @ 500mA
  • 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.

    117dB ~ 53dB (120Hz ~ 10MHz)
  • Length
    3mm
  • Height Seated (Max)

    Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.

    0.8mm
  • Width
    3mm
  • RoHS Status

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

    ROHS3 Compliant
0 Similar Products Remaining

LT3045 Applications

RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs

 Very Low Noise Instrumentation

 High Speed/High Precision Data Converters

 Medical Applications: Imaging, Diagnostics

 Post-Regulator for Switching Supplies


LT3045 Typical Application Circuit

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LT3045 Typical Application Circuit


LT3045 Package

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LT3045 Manufacturer

Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for three decades. The Company's products provide an essential bridge between our analog world and the digital electronics in communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, and military and aerospace systems. Linear Technology produces power management, data conversion, signal conditioning, RF and interface ICs, µModule subsystems, and wireless sensor network products.

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Frequently Asked Questions

What is LT3045?

The LT3045 is a high performance low dropout linear regulator with LTC's ultralow noise and ultrahigh PSRR architecture, designed to power noise sensitive applications. The LT3045, which is designed as a precision current reference followed by a high performance voltage buffer, may be readily paralleled to minimize noise, boost output current, and spread heat on the PCB. In addition to the LT3045 feature set, the LT3045-1 includes a VIOC tracking function that controls an upstream switching converter to maintain a constant voltage across the LT3045-1 and therefore reduce power consumption.

What is the recommended operating temperature of the component?

-40°C~125°C TJ.

What is the package of the device?

12-TSSOP (0.118, 3.00mm Width) Exposed Pad.

What is the component’s number of pins?

12.
LT3045HDD#PBF

Linear Technology/Analog Devices

In Stock: 500

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