A Comprehensive Guide to LTC7149IUFD#TRPBF DC DC Switching Regulator
Linear Technology/Analog Devices
3.4V 28-Pin LTC7149 DC DC Voltage Regulator 1 Outputs 1MHz Tape & Reel (TR) 28-WFQFN Exposed Pad









3.4V 28-Pin LTC7149 DC DC Voltage Regulator 1 Outputs 1MHz Tape & Reel (TR) 28-WFQFN Exposed Pad
This technical article delves into the LTC7149IUFD#TRPBF DC DC switching regulator, a versatile product from Linear Technology/Analog Devices. The article provides an in-depth analysis of the product description, features, applications, reference designs, alternative parts, and FAQs to help electronic engineers and enthusiasts understand and utilize this component effectively.
Product Introduction
Description:
The LTC7149IUFD#TRPBF is a DC DC switching regulator designed for step-down voltage applications. It is a negative output voltage regulator with an adjustable output type and a maximum output voltage of -28V. With a wide input voltage range of 3.4V to 60V, this regulator is suitable for various power supply designs. The device operates at a high frequency of 1MHz and features synchronous rectification for improved efficiency.
Features:
- Negative output voltage regulator
- Adjustable output type
- Wide input voltage range: 3.4V to 60V
- Maximum output voltage: -28V
- High switching frequency: 1MHz
- Synchronous rectification for improved efficiency
- RoHS3 compliant
Applications:
Primary Applications:
1. Industrial power supplies
2. Automotive power systems
3. Telecommunication equipment
Secondary Applications:
1. Battery-powered devices
2. LED lighting applications
Applicable Specific Modules:
1. Voltage regulation in automotive ECUs
2. Power management in industrial control systems
Reference Designs:
1. Industrial power supply design using LTC7149IUFD#TRPBF
2. Automotive power system design with negative output voltage regulation
3. Telecommunication equipment power supply reference design
Alternative Parts:
1. LTC7148: Similar specifications with a different package type
2. LTC7147: Lower output current but compatible with similar applications
3. LT8609: Buck-boost regulator for applications requiring both step-up and step-down capabilities
FAQs:
Q: What is the maximum output current of the LTC7149IUFD#TRPBF?
A: The LTC7149IUFD#TRPBF has a maximum output current of 4A.
Q: Can this regulator be used for positive output voltage applications?
A: No, the LTC7149IUFD#TRPBF is specifically designed for negative output voltage applications.
Q: What is the operating temperature range of this regulator?
A: The LTC7149IUFD#TRPBF operates in a temperature range of -40°C to 125°C.
Q: Is the LTC7149IUFD#TRPBF suitable for high-reliability applications?
A: Yes, the LTC7149IUFD#TRPBF is a reliable component suitable for industrial and automotive applications.
Q: Does this regulator require external components for operation?
A: Yes, external components such as capacitors and inductors are required for the proper operation of the LTC7149IUFD#TRPBF.
In conclusion, the LTC7149IUFD#TRPBF DC DC switching regulator is a versatile and reliable component suitable for a wide range of applications in various industries. Its adjustable negative output voltage, high efficiency, and wide input voltage range make it a valuable addition to power supply designs. By understanding its features, applications, reference designs, alternative parts, and FAQs, engineers can effectively integrate this regulator into their electronic systems.
Specifications
- TypeParameter
- 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.
PRODUCTION (Last Updated: 2 weeks ago) - Factory Lead Time20 Weeks
- 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.
Surface Mount - 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.
28-WFQFN Exposed Pad - Number of Pins28
- 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~125°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.
Tape & Reel (TR) - Published2016
- 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) - 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.
LTC7149 - Function
The parameter "Function" in electronic components refers to the specific role or purpose that the component serves within an electronic circuit. It defines how the component interacts with other elements, influences the flow of electrical signals, and contributes to the overall behavior of the system. Functions can include amplification, signal processing, switching, filtering, and energy storage, among others. Understanding the function of each component is essential for designing effective and efficient electronic systems.
Step-Down - Number of Outputs1
- 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.
60V - 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.
Adjustable - Voltage - Input (Min)
Voltage - Input (Min) refers to the minimum voltage level that an electronic component requires to operate correctly. It indicates the lowest voltage that can be applied to the component while still allowing it to function as intended. If the input voltage falls below this specified minimum, the component may not perform properly or may fail to operate altogether. This parameter is critical for ensuring reliable operation and longevity of the device in electronic circuits.
3.4V - 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.
Negative - Max Output Voltage
The maximum output voltage refers to the dynamic area beyond which the output is saturated in the positive or negative direction, and is limited according to the load resistance value.
-28V - 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 - Topology
In the context of electronic components, "topology" refers to the arrangement or configuration of the components within a circuit or system. It defines how the components are connected to each other and how signals flow between them. The choice of topology can significantly impact the performance, efficiency, and functionality of the electronic system. Common topologies include series, parallel, star, mesh, and hybrid configurations, each with its own advantages and limitations. Designers carefully select the appropriate topology based on the specific requirements of the circuit to achieve the desired performance and functionality.
Buck - Frequency - Switching
"Frequency - Switching" in electronic components refers to the rate at which a device, such as a transistor or switching regulator, turns on and off during operation. This parameter is crucial in determining the efficiency and performance of power converters, oscillators, and other circuits that rely on rapid switching. Higher switching frequencies typically allow for smaller component sizes but may require more advanced design considerations to manage heat and electromagnetic interference.
1MHz - Synchronous Rectifier
Synchronous rectification is a technique for improving the efficiency of rectification by replacing diodes with actively controlled switches, usually power MOSFETs or power bipolar junction transistors (BJT).
Yes - 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.
0V - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsNumber of OutputsFrequency - SwitchingVoltage - Input (Min)Voltage - Input (Max)Min Output VoltageMax Output VoltageView Compare
LTC7149IUFD#TRPBF
28-WFQFN Exposed Pad
28
1
1MHz
3.4V
60V
0 V
-28 V
48-WFQFN Exposed Pad
48
1
-
-
-
700 mV
5.5 V
16-VFQFN Exposed Pad
16
1
1MHz
3V
17V
0 V
980 mV
16-VFQFN Exposed Pad
16
1
1MHz
3V
17V
0 V
1.05 V
16-VFQFN Exposed Pad
16
1
1MHz
3V
17V
0 V
1.05 V
Datasheet PDF
- Datasheets :
- PCN Assembly/Origin :
- TechnicalDrawing :
- ConflictMineralStatement :
- Software Download :
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