STMPS2151STR Switch: Features, Applications and Datasheet
N-Channel PMIC STMPS2151 5 Pin 5V SC-74A, SOT-753
Unit Price: $0.374214
Ext Price: $0.37









N-Channel PMIC STMPS2151 5 Pin 5V SC-74A, SOT-753
The STMicroelectronics STMPS2151STR is a power distribution switch that can handle heavy capacitive loads and short circuits. This article will introduce its features, applications and datasheet.
STMPS2151STR Description
The STMicroelectronics STMPS2151STR is a power distribution switch that can handle heavy capacitive loads and short circuits. It is a single channel, high-side, N-channel MOSFET switch that can deliver up to 500 mA of continuous current. It has various features to protect the load and the device from overcurrent, overtemperature, reverse current, and undervoltage conditions. It also has an overcurrent logic output that can be used to signal a fault condition. It operates from 2.7 V to 5.5 V and has a low on-resistance of 90 mΩ. It comes in a SOT-23-5 package and has a wide operating temperature range of -40°C to 125°C.
STMPS2151STR Features
Single channel, high-side switch that can be controlled by a logic input
500 mA continuous current capability with low on-resistance of 90 mΩ
Overcurrent protection with automatic retry or latch-off mode
Overtemperature protection with thermal shutdown and auto-restart
Reverse current protection when the output voltage is higher than the input voltage
Undervoltage lockout to prevent device operation when the input voltage is too low
Overcurrent logic output to signal a fault condition to the system
SOT-23-5 package with a small footprint and low profile
Wide operating voltage range of 2.7 V to 5.5 V
Wide operating temperature range of -40°C to 125°C
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.
ACTIVE (Last Updated: 7 months ago) - Factory Lead Time14 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.
SC-74A, SOT-753 - Number of Pins5
- Turn Off Delay Time
It is the time from when Vgs drops below 90% of the gate drive voltage to when the drain current drops below 90% of the load current. It is the delay before current starts to transition in the load, and depends on Rg. Ciss.
10 ms - 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) - 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 - 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 Terminations5
- 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 - Resistance
Resistance is a fundamental property of electronic components that measures their opposition to the flow of electric current. It is denoted by the symbol "R" and is measured in ohms (Ω). Resistance is caused by the collisions of electrons with atoms in a material, which generates heat and reduces the flow of current. Components with higher resistance will impede the flow of current more than those with lower resistance. Resistance plays a crucial role in determining the behavior and functionality of electronic circuits, such as limiting current flow, voltage division, and controlling power dissipation.
90mOhm - 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) - Max Power Dissipation
The maximum power that the MOSFET can dissipate continuously under the specified thermal conditions.
33.8mW - 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.
GULL WING - Peak Reflow Temperature (Cel)
Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.
260 - Number of Functions1
- Supply Voltage
Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.
5V - Current Rating
Current rating is the maximum current that a fuse will carry for an indefinite period without too much deterioration of the fuse element.
500mA - Time@Peak Reflow Temperature-Max (s)
Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.
30 - 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.
STMPS2151 - Pin Count
a count of all of the component leads (or pins)
5 - 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.
5V - 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.
N-Channel - Max Output Current
The maximum current that can be supplied to the load.
500mA - Operating Supply Voltage
The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.
5.5V - Voltage
Voltage is a measure of the electric potential difference between two points in an electrical circuit. It is typically represented by the symbol "V" and is measured in volts. Voltage is a crucial parameter in electronic components as it determines the flow of electric current through a circuit. It is responsible for driving the movement of electrons from one point to another, providing the energy needed for electronic devices to function properly. In summary, voltage is a fundamental concept in electronics that plays a key role in the operation and performance of electronic components.
5.5V - Interface
In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.
On/Off - 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.
12μA - Current
In electronic components, "Current" refers to the flow of electric charge through a conductor or semiconductor material. It is measured in amperes (A) and represents the rate at which electric charge is moving past a specific point in a circuit. Current is a crucial parameter in electronics as it determines the amount of power being consumed or delivered by a component. Understanding and controlling current is essential for designing and operating electronic circuits efficiently and safely. In summary, current is a fundamental electrical quantity that plays a key role in the functionality and performance of electronic components.
500mA - 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.
High Side - 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.
32.5mW - Output Current
The rated output current is the maximum load current that a power supply can provide at a specified ambient temperature. A power supply can never provide more current that it's rated output current unless there is a fault, such as short circuit at the load.
500mA - Voltage - Supply (Vcc/Vdd)
Voltage - Supply (Vcc/Vdd) is a key parameter in electronic components that specifies the voltage level required for the proper operation of the device. It represents the power supply voltage that needs to be provided to the component for it to function correctly. This parameter is crucial as supplying the component with the correct voltage ensures that it operates within its specified limits and performance characteristics. It is typically expressed in volts (V) and is an essential consideration when designing and using electronic circuits to prevent damage and ensure reliable operation.
Not Required - Max Supply Current
Max Supply Current refers to the maximum amount of electrical current that a component can draw from its power supply under normal operating conditions. It is a critical parameter that ensures the component operates reliably without exceeding its thermal limits or damaging internal circuitry. Exceeding this current can lead to overheating, performance degradation, or failure of the component. Understanding this parameter is essential for designing circuits that provide adequate power while avoiding overload situations.
40μA - Input Type
Input type in electronic components refers to the classification of the signal or data that a component can accept for processing or conversion. It indicates whether the input is analog, digital, or a specific format such as TTL or CMOS. Understanding input type is crucial for ensuring compatibility between different electronic devices and circuits, as it determines how signals are interpreted and interacted with.
Non-Inverting - Turn On Delay Time
Turn-on delay, td(on), is the time taken to charge the input capacitance of the device before drain current conduction can start.
5 ms - Switch Type
Based on their characteristics, there are basically three types of switches: Linear switches, tactile switches and clicky switches.
General Purpose - Min Input Voltage
The parameter "Min Input Voltage" in electronic components refers to the minimum voltage level that must be applied to the component for it to operate within its specified parameters. This value is crucial as providing a voltage below this minimum threshold may result in the component malfunctioning or not functioning at all. It is important to adhere to the specified minimum input voltage to ensure the proper operation and longevity of the electronic component. Failure to meet this requirement may lead to potential damage to the component or the overall system in which it is used.
2.7V - Number of Inputs1
- Max Input Voltage
Max Input Voltage refers to the maximum voltage level that an electronic component can safely handle without getting damaged. This parameter is crucial for ensuring the proper functioning and longevity of the component. Exceeding the specified maximum input voltage can lead to overheating, electrical breakdown, or permanent damage to the component. It is important to carefully adhere to the manufacturer's guidelines regarding the maximum input voltage to prevent any potential issues and maintain the reliability of the electronic device.
5.5V - 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”.
5V - Ratio - Input:Output
The parameter "Ratio - Input:Output" in electronic components refers to the relationship between the input and output quantities of a device or system. It is a measure of how the input signal or energy is transformed or converted into the output signal or energy. This ratio is often expressed as a numerical value or percentage, indicating the efficiency or effectiveness of the component in converting the input to the desired output. A higher ratio typically signifies better performance or higher efficiency, while a lower ratio may indicate losses or inefficiencies in the conversion process. Understanding and optimizing the input-output ratio is crucial in designing and evaluating electronic components for various applications.
1:1 - Voltage - Load
Voltage - Load refers to the voltage across a load component in an electronic circuit when it is connected and operational. It represents the electrical potential difference that drives current through the load, which can be a resistor, motor, or other devices that consume electrical power. The voltage - load relationship is crucial for determining how much power the load will utilize and how it will affect the overall circuit performance. Properly managing voltage - load is essential for ensuring devices operate efficiently and safely within their specified limits.
2.7V~5.5V - Driver Number of Bits1
- Fault Protection
Protection against electric shock under. single fault conditions.
Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO - Rds On (Typ)
The parameter "Rds On (Typ)" in electronic components refers to the typical on-state resistance of a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) when it is fully conducting. This parameter indicates the resistance encountered by the current flowing through the MOSFET when it is in the on-state, which affects the power dissipation and efficiency of the component. A lower Rds On value indicates better conduction and lower power loss in the MOSFET. Designers often consider this parameter when selecting components for applications where minimizing power loss and maximizing efficiency are critical factors.
90m Ω - Max Junction Temperature (Tj)
Max Junction Temperature (Tj) refers to the maximum allowable temperature at the junction of a semiconductor device, such as a transistor or integrated circuit. It is a critical parameter that influences the performance, reliability, and lifespan of the component. Exceeding this temperature can lead to thermal runaway, breakdown, or permanent damage to the device. Proper thermal management is essential to ensure the junction temperature remains within safe operating limits during device operation.
125°C - Drain to Source Resistance
The Drain to Source Resistance, often denoted as RDS(on), is a crucial parameter in electronic components, particularly in field-effect transistors (FETs) such as MOSFETs. It represents the resistance between the drain and source terminals when the FET is in its on-state, conducting current. A lower RDS(on) value indicates better conductivity and efficiency, as it results in less power dissipation and heat generation in the component. Designers often aim to minimize RDS(on) to improve the performance and overall efficiency of electronic circuits, especially in power applications where minimizing losses is critical.
90mOhm - Built-in Protections
Built-in protections in electronic components refer to the safety features and mechanisms that are integrated into the component to prevent damage or malfunction in various situations. These protections are designed to safeguard the component from overvoltage, overcurrent, overheating, short circuits, and other potential hazards that could occur during operation. By having built-in protections, electronic components can operate more reliably and safely, extending their lifespan and reducing the risk of failure. These protections are essential for ensuring the overall performance and longevity of electronic devices and systems.
TRANSIENT; OVER CURRENT; THERMAL; UNDER VOLTAGE - Ambient Temperature Range High
This varies from person to person, but it is somewhere between 68 and 77 degrees F on average. The temperature setting that is comfortable for an individual may fluctuate with humidity and outside temperature as well. The temperature of an air conditioned room can also be considered ambient temperature.
85°C - On-State Resistance
On-State Resistance, often denoted as Rds(on), refers to the resistance offered by a semiconductor device, such as a MOSFET or a diode, when it is in the "on" state and conducting current. This parameter is critical in determining the efficiency of the component, as lower on-state resistance results in reduced power loss and heat generation during operation. It is typically measured in ohms and can vary based on the specific device characteristics, current level, and temperature.
90mOhm - Height1.45mm
- Length3mm
- Width1.75mm
- 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
STMPS2151STR Pinout


STMPS2151STR Block Diagram

STMPS2151STR CAD Model
Symbol

Footprint

3D Model

STMPS2151STR Applications
USB peripherals such as keyboards, mice, hubs, cameras, printers, scanners, etc. The STMPS2151STR can provide power to these devices from the USB port and protect them from short-circuits and thermal shutdowns. It can also signal a fault condition to the host controller using the overcurrent logic output.
Portable devices such as smartphones, tablets, laptops, MP3 players, etc. The STMPS2151STR can manage the power distribution from the battery or the charger to the various components of these devices, such as the display, the audio, the camera, the sensors, etc. It can also prevent reverse current flow from the output to the input when the input voltage is lower than the output voltage.
Industrial and automotive applications such as sensors, actuators, controllers, displays, etc. The STMPS2151STR can operate in harsh environments with a wide temperature range and provide reliable power switching and protection for these applications. It can also handle heavy capacitive loads and short-circuits without damage.
STMPS2151STR Manufacturer
STMicroelectronics is a global leader in creating products and solutions for smart mobility, extreme versatility, power and energy, and IoT and connectivity. It is a multinational corporation and technology company of French-Italian origin that was founded in 1987 by the merger of SGS Microelettronica of Italy and Thomson Semiconducteurs of France. It has its headquarters in Geneva, Switzerland and is listed on the New York Stock Exchange, the Euronext Paris, and the Borsa Italiana.
STMicroelectronics has one of the industry’s broadest technology portfolios, covering analog, digital, mixed-signal, and power electronics. It offers products and solutions for various markets and applications, such as automotive, industrial, consumer, personal electronics, communications, computing, healthcare, and security. Some of its flagship products include microcontrollers, sensors, power management devices, wireless modules, NFC readers and tags, secure microcontrollers, and MEMS devices.
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of InputsNumber of PinsMax Output CurrentOutput CurrentInterfaceSupply VoltageRoHS StatusView Compare
STMPS2151STR
SC-74A, SOT-753
1
5
500 mA
500 mA
On/Off
5 V
ROHS3 Compliant
SC-74A, SOT-753
-
5
-
1 A
On/Off
5 V
ROHS3 Compliant
SOT-23-6
-
6
2 A
-
On/Off
-
ROHS3 Compliant
SOT-23-6
-
6
-
1.8 A
On/Off
-
ROHS3 Compliant
Datasheet PDF
- Datasheets :
What is the STMPS2151STR and what does it do?
The STMPS2151STR is a power distribution switch that can handle heavy capacitive loads and short circuits. It is a single channel, high-side, N-channel MOSFET switch that can deliver up to 500 mA of continuous current. It has various features to protect the load and the device from overcurrent, overtemperature, reverse current, and undervoltage conditions. It also has an overcurrent logic output that can be used to signal a fault condition.
How do I enable or disable the STMPS2151STR?
The STMPS2151STR can be controlled by a logic enable input. The enable input is active high, which means that the switch is on when the enable input is high and off when the enable input is low. The enable input is CMOS and TTL compatible, which means that it can accept logic signals from different voltage levels.
How do I know if the STMPS2151STR is in a fault condition?
The STMPS2151STR has an open drain fault indicator, which is active low. This means that the fault output is low when the device is in a fault condition and high impedance when the device is normal. The fault output can be connected to a pull-up resistor and a logic input of the system to monitor the status of the switch. The fault output can also be used to drive an LED indicator or a buzzer alarm.
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