AP63205WU-7 Switching Voltage Regulator: 5V 2A TSOT26, AP63205WU-7 Regulators Datasheet
3.8V DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs 1.1MHz Tape & Reel (TR) SOT-23-6 Thin, TSOT-23-6









3.8V DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs 1.1MHz Tape & Reel (TR) SOT-23-6 Thin, TSOT-23-6
AP63205WU-7 is a switching voltage regulator. This article is going to explain pinout, features, applications, circuits, and more details about the AP63205WU-7 regulator.
What is AP63205WU-7?
The AP63205WU-7 is a 2A switching voltage regulator having a 3.8V to 32V input voltage range. A 125m high-side power MOSFET and a 68m low-side power MOSFET are fully integrated. To achieve high-efficiency step-down DC/DC conversion, a power MOSFET is used.
The AP63205WU-7 device is easily used by minimizing the external component count due to its adoption of peak current mode control along with its integrated compensation network.
AP63205WU-7 Pinout

AP63205WU-7 Pinout
AP63205WU-7 CAD Model

AP63205WU-7 Symbol

AP63205WU-7 Footprint

AP63205WU-7 3D Model
Specifications
- TypeParameter
- Factory Lead Time19 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.
SOT-23-6 Thin, TSOT-23-6 - 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~85°C TA - 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) - 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) - Terminal Finish
Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.
Matte Tin (Sn) - 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.
32V - 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 - 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.
3.8V - Analog IC - Other Type
Analog IC - Other Type is a parameter used to categorize electronic components that are integrated circuits (ICs) designed for analog signal processing but do not fall into more specific subcategories such as amplifiers, comparators, or voltage regulators. These ICs may include specialized analog functions such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), voltage references, or signal conditioning circuits. They are typically used in various applications where precise analog signal processing is required, such as in audio equipment, instrumentation, communication systems, and industrial control systems. Manufacturers provide detailed specifications for these components to help engineers select the most suitable IC for their specific design requirements.
SWITCHING REGULATOR - 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 - 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.
5V - 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.
1.1MHz - 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 - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant
AP63205WU-7 Features
VIN 3.8V to 32V
2A Continuous Output Current
0.8V ± 1% Reference Voltage
22µA Ultralow Quiescent Current
Switching Frequency
500 kHz: AP63200 and AP63201
1.1MHz: AP63203 and AP63205
Pulse Width Modulation (PWM) Regardless of Output Load
AP63201
Supports Pulse Frequency Modulation (PFM)
AP63200, AP63203, and AP63205
Up to 80% Efficiency at 1mA Light Load
Up to 88% Efficiency at 5mA Light Load
Fixed Output Voltage
3.3V: AP63203
5.0V: AP63205
Proprietary Gate Driver Design for Best EMI Reduction
Frequency Spread Spectrum (FSS) to Reduce EMI
Precision Enable Threshold to Adjust UVLO
Protection Circuitry
Overvoltage Protection
Cycle-by-Cycle Peak Current Limit
Thermal Shutdown
Lead-Free & Fully RoHS Compliant
Halogen and Antimony Free “Green” Device
AP63205WU-7 Functional Block Diagram
The following is AP63205WU-7 Functional Block Diagram:

AP63205WU-7 Functional Block Diagram
AP63205WU-7 Applications
Gaming Consoles
Flat Screen TV Sets and Monitors
Set-Top Boxes
Home Audio
Network Systems
Power Tools and Laser Printers
White Goods and Small Home Appliance
AP63205WU-7 Application Circuit
The following is the application circuit of AP63205WU-7:

AP63205WU-7 Application Circuit
AP63205WU-7 PCB Layout
The AP63205WU-7 PCB device works at 2A current load, so heat dissipation is a major concern in the layout of the PCB. 2oz copper for both the top and bottom layers is recommended.
Provide sufficient vias for the input and output capacitors’ GND side to dissipate heat to the bottom layer.
Make the bottom layer under the device the GND layer for heat dissipation. The GND layer should be as large as possible to provide a better thermal effect.
Place the VIN capacitors as close to the device as possible.
Place the feedback components as close to FB as possible.
The following is the PCB layout of AP63205WU-7 :

AP63205WU-7 PCB Layout
AP63205WU-7 Package Dimensions

AP63205WU-7 Package Dimensions
AP63205WU-7 Manufacturer
Diodes Incorporated delivers high-quality semiconductor products to the world’s leading companies in the consumer electronics, computing, communications, industrial, and automotive markets. They leverage their expanded product portfolio of discrete, analog, and mixed-signal products and leading-edge packaging technology to meet customers’ needs. Their broad range of application-specific solutions and solutions-focused sales, coupled with worldwide operations of 25 sites, including engineering, testing, manufacturing, and customer service, enables us to be a premier provider for high-volume, high-growth markets.
Trend Analysis
Datasheet PDF
- Datasheets :
What is the use of AP63205WU-7?
The AP63205WU-7 is easily used by minimizing the external component count due to its adoption of peak current mode control along with its integrated compensation network.
How does AP63205WU-7 work?
The AP63205WU-7 is a fixed output buck converter with Electromagnetic Interference (EMI) reduction. The converter features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period.
What is the nominal supply current of AP63205WU-7?
It is 22 µA.
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Diodes Incorporated
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