TPS62745DSSR: Step-Down, Datasheet, Ultra-Low Power
12 Terminals 12-Pin TPS62745 DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs Up to 2.5MHz Tape & Reel (TR) 12-WFDFN Exposed Pad









12 Terminals 12-Pin TPS62745 DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs Up to 2.5MHz Tape & Reel (TR) 12-WFDFN Exposed Pad
The TPS62745DSSR is the first dual-cell, ultra-low power step-down converter with TI's DCS-ControlTM topology and ultra-low quiescent current consumption (400 nA average) while maintaining a controlled output voltage. The following article will introduce its features, applications, etc.
- TPS62745DSSR Description
- TPS62745DSSR Pinout
- TPS62745DSSR CAD Model
- TPS62745DSSR Features
- TPS62745DSSR Functional Block Diagram
- TPS62745DSSR Recommended Operating Conditions
- TPS62745DSSR Equivalents
- Specifications
- TPS62745DSSR Applications
- TPS62745DSSR Typical Application Circuit
- TPS62745DSSR Package
- TPS62745DSSR Manufacturer
- Trend Analysis
- Datasheet PDF
TPS62745DSSR Description
The TPS62745DSSR is the first dual-cell, ultra-low power step-down converter that combines TI's DCS-ControlTM topology with ultra-low quiescent current consumption (400 nA average) while maintaining a controlled output voltage. The device's high efficiency performance is extended to output currents as low as a few micro amperes.
TPS62745DSSR Pinout

TPS62745DSSR CAD Model
Symbol

Footprint

3D Model

TPS62745DSSR Features
• Input Voltage Range VIN from 3.3 V to 10 V
• Typical 400 nA Quiescent Current
• Up to 90% efficiency with load currents >15 µA
• Up to 300 mA Output Current
• RF Friendly DCS-Control™
• Low Output Ripple Voltage
• 16 Selectable Output Voltages from
– 1.8 V to 3.3 V (TPS62745)
– 1.3 V to 2.8 V (TPS627451)
• Integrated input voltage switch
• Integrated Discharge Function at VOUT
• Open Drain Power Good Output
• Operates with a Tiny 3.3 µH or 4.7 µH Inductor
• Small 3 mm x 2 mm WSON Package
TPS62745DSSR Functional Block Diagram

TPS62745DSSR Recommended Operating Conditions
| MIN | NOM | MAX | UNIT | ||
| Supply voltage Vin | 3.3 | 10 | V | ||
| Output current Iout | Vout + 0.7 V < Vin 兰 10 V | 300 | mA | ||
| Effective inductance | 2.8 | 4.7 | 6.2 | pH | |
| Capacitance connected to VIN pin | 3 | 10 | pF | ||
| Total effective capacitance connected to VOUT pin (1) | 5 | 10 | 22 | pF | |
| Operating junction temperature range, Tj | -40 | 125 | °C | ||
| Operating ambient temperature range, Ta | -40 | 85 | °C | ||
TPS62745DSSR Equivalents
| Part Number | Description | Manufacturer |
| TPS62745DSSTPOWER CIRCUITS | 3.3V-10V input, 300mA Ultra Low Iq step-down converter with VSEL and input voltage switch 12-WSON -40 to 125 | Texas Instruments |
| MCP1602-120I/MSPOWER CIRCUITS | 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8 | Microchip Technology Inc |
| TPS62742DSSRPOWER CIRCUITS | 3V-5.5V input, 360-nA Iq step-down converter with 400mA and integrated load switch 12-WSON -40 to 85 | Texas Instruments |
| TPS62742DSSTPOWER CIRCUITS | 3V-5.5V input, 360-nA Iq step-down converter with 400mA and integrated load switch 12-WSON -40 to 85 | Texas Instruments |
| MCP1602T-120I/MFPOWER CIRCUITS | 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, 3 X 3 MM, 0.90 MM HEIGHT, PLASTIC, DFN-8 | Microchip Technology Inc |
| TPS627451DSSRPOWER CIRCUITS | 10Vin Ultra Low Iq Step-Down Converter 12-WSON -40 to 125 | Texas Instruments |
| TPS627451DSSTPOWER CIRCUITS | 10Vin Ultra Low Iq Step-Down Converter 12-WSON -40 to 125 | Texas Instruments |
| MCP1602-120I/MFPOWER CIRCUITS | 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO8, 3 X 3 MM, 0.90 MM HEIGHT, PLASTIC, DFN-8 | Microchip Technology Inc |
Specifications
- TypeParameter
- Factory Lead Time6 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.
12-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 - Number of Pins12
- Voltage - Input (Nom)6V
- 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) - Series
In electronic components, the "Series" refers to a group of products that share similar characteristics, designs, or functionalities, often produced by the same manufacturer. These components within a series typically have common specifications but may vary in terms of voltage, power, or packaging to meet different application needs. The series name helps identify and differentiate between various product lines within a manufacturer's catalog.
DCS-Control™ - 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.
e4 - Pbfree Code
The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.
yes - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
ACTIVE (Last Updated: 6 days ago) - 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
2 (1 Year) - Number of Terminations12
- 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 - 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.
Nickel/Palladium/Gold (Ni/Pd/Au) - 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 - 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.
TPS62745 - 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.
10V - 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 - 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 - Quiescent Current
The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.
400nA - 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.
3.3V - 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.
1.8V - 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.
Up to 2.5MHz - Control Technique
In electronic components, "Control Technique" refers to the method or approach used to regulate and manage the operation of the component. This parameter is crucial in determining how the component functions within a circuit or system. Different control techniques can include analog control, digital control, pulse-width modulation (PWM), and various feedback mechanisms. The choice of control technique can impact the performance, efficiency, and overall functionality of the electronic component. It is important to select the appropriate control technique based on the specific requirements and characteristics of the application in which the component will be used.
PULSE WIDTH MODULATION - 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 - Height800μm
- Length2mm
- Width3mm
- Thickness
Thickness in electronic components refers to the measurement of how thick a particular material or layer is within the component structure. It can pertain to various aspects, such as the thickness of a substrate, a dielectric layer, or conductive traces. This parameter is crucial as it impacts the electrical, mechanical, and thermal properties of the component, influencing its performance and reliability in electronic circuits.
750μm - 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
TPS62745DSSR Applications
• Bluetooth® Low Energy, RF4CE, Zigbee
• Industrial Metering
• Energy Harvesting
TPS62745DSSR Typical Application Circuit

TPS62745DSSR Typical Application Circuit
TPS62745DSSR Package

TPS62745DSSR Manufacturer
Texas Instruments Incorporated (TI) is an American technology company based in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, micro-controllers, and multi-core processors. The company boasts 45,000 patents around the globe as of 2016.
Trend Analysis
Parts with Similar Specs
Datasheet PDF
- PCN Design/Specification :
- Datasheets :
What is TPS62745DSSR?
The TPS62745DSSR is the first dual-cell, ultra-low power step down converter that combines TI's DCS-ControlTM topology with ultra-low quiescent current consumption (400 nA average) while maintaining a controlled output voltage. The device's high efficiency performance is extended to output currents as low as a few micro amperes.
What is the recommended operating temperature of the component?
-40°C~85°C TA.
What is the package of the device?
12-WFDFN Exposed Pad.
What is the component’s number of pins?
12.
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