Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Switch Type | General Purpose |
| Number of Outputs | 1 |
| Ratio - Input: Output | 1:1 |
| Output Configuration | High Side |
| Output Type | N-Channel |
| Interface | On/Off |
| Voltage - Load | 2.7V ~ 5.5V |
| Voltage - Supply (Vcc/Vdd) | Not Required |
| Current - Output (Max) | 500mA |
| Rds On (Typ) | 95mOhm |
| Input Type | Non-Inverting |
| Features | Status Flag |
| Fault Protection | Current Limiting (Fixed), Over Temperature, UVLO |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Supplier Device Package | SOT-23-5 |
Overview
Description
The TPS2051BDBVR is a power distribution switch from Texas Instruments, designed for USB applications and general power management. It features a single-channel, current-limited power switch with advanced characteristics that include over-current protection, thermal shutdown, and reverse current blocking to prevent damage to the system. The device operates with an input voltage range of 4.5V to 5.5V, making it suitable for USB port power supply applications.
The TPS2051BDBVR provides a maximum continuous load current of 500 mA, which is appropriate for downstream USB peripherals and other low-power applications. Its low on-resistance ensures efficient power delivery with minimal power loss. The device includes a built-in 110-ms deglitch time to filter out spurious over-current events, providing stability and reliability during operation.
Packaged in a compact SOT-23 form factor, the TPS2051BDBVR is ideal for space-constrained designs. Its ease of integration into designs and robust protection features make it a popular choice for designers looking to implement reliable power management solutions in consumer electronics, portable devices, and other embedded systems.
The TPS2051BDBVR provides a maximum continuous load current of 500 mA, which is appropriate for downstream USB peripherals and other low-power applications. Its low on-resistance ensures efficient power delivery with minimal power loss. The device includes a built-in 110-ms deglitch time to filter out spurious over-current events, providing stability and reliability during operation.
Packaged in a compact SOT-23 form factor, the TPS2051BDBVR is ideal for space-constrained designs. Its ease of integration into designs and robust protection features make it a popular choice for designers looking to implement reliable power management solutions in consumer electronics, portable devices, and other embedded systems.
Equivalent
The TPS2051BDBVR is a power-distribution switch from Texas Instruments. Equivalent products may include:
1. MIC2025-1YM from Microchip Technology
2. ON Semiconductor's NCP380LMUAJAGEVB
3. AP2125K-3.3TRG1 from Diodes Incorporated
4. MAX1931EUA+ from Maxim Integrated
When selecting equivalents, ensure to verify electrical characteristics, package type, and pin compatibility to confirm they meet your circuit requirements.
1. MIC2025-1YM from Microchip Technology
2. ON Semiconductor's NCP380LMUAJAGEVB
3. AP2125K-3.3TRG1 from Diodes Incorporated
4. MAX1931EUA+ from Maxim Integrated
When selecting equivalents, ensure to verify electrical characteristics, package type, and pin compatibility to confirm they meet your circuit requirements.
Features
The TPS2051BDBVR is a power distribution switch designed for USB application and general-purpose power management. Key features include:
1. Current Limiting: Provides protection against short circuits and overcurrent conditions by limiting the output current.
2. Overtemperature Protection: Includes a thermal shutdown feature to protect the device from overheating.
3. Reverse Current Blocking: Prevents current from flowing back into the power source when the switch is off.
4. Controlled Rise and Fall Time: Ensures smooth power-up and power-down transitions to minimize inrush current.
5. Compact Package: Available in a small SOT-23 package, ideal for space-constrained applications.
6. Low On-Resistance: Offers minimal power loss during operation with low R_on.
7. Operating Voltage: Supports a wide input voltage range, typically suitable for 5V applications.
8. Enable Input: Features an active-high enable pin for easy control of the switch state.
These features make the TPS2051BDBVR suitable for protecting sensitive electronics and managing power efficiently in various applications.
1. Current Limiting: Provides protection against short circuits and overcurrent conditions by limiting the output current.
2. Overtemperature Protection: Includes a thermal shutdown feature to protect the device from overheating.
3. Reverse Current Blocking: Prevents current from flowing back into the power source when the switch is off.
4. Controlled Rise and Fall Time: Ensures smooth power-up and power-down transitions to minimize inrush current.
5. Compact Package: Available in a small SOT-23 package, ideal for space-constrained applications.
6. Low On-Resistance: Offers minimal power loss during operation with low R_on.
7. Operating Voltage: Supports a wide input voltage range, typically suitable for 5V applications.
8. Enable Input: Features an active-high enable pin for easy control of the switch state.
These features make the TPS2051BDBVR suitable for protecting sensitive electronics and managing power efficiently in various applications.
Pinout
The TPS2051BDBVR is a power distribution switch from Texas Instruments. It typically comes in a SOT-23-5 package, meaning it has 5 pins. Here’s a brief overview of the pin functions:
1. IN (Input): This is the supply input for the switch. It is connected to the source voltage.
2. GND (Ground): This pin is the ground reference for the device.
3. OUT (Output): This pin is the output of the switch and delivers power to the load.
4. EN (Enable): The enable pin is used to turn the switch on or off. It is an input pin and can be driven by a logic signal.
5. OC (Overcurrent): The OC pin provides an overcurrent indicator, which is an output signal that goes low when an overcurrent condition is detected.
The TPS2051B is used for USB and other power distribution applications, offering protection features like current limiting and thermal shutdown to ensure safe operation.
1. IN (Input): This is the supply input for the switch. It is connected to the source voltage.
2. GND (Ground): This pin is the ground reference for the device.
3. OUT (Output): This pin is the output of the switch and delivers power to the load.
4. EN (Enable): The enable pin is used to turn the switch on or off. It is an input pin and can be driven by a logic signal.
5. OC (Overcurrent): The OC pin provides an overcurrent indicator, which is an output signal that goes low when an overcurrent condition is detected.
The TPS2051B is used for USB and other power distribution applications, offering protection features like current limiting and thermal shutdown to ensure safe operation.
Manufacturer
The TPS2051BDBVR is manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is a global semiconductor design and manufacturing company. It is one of the top companies in the electronics industry, known for producing a wide range of integrated circuits and semiconductor solutions. TI's products are used in various applications, including consumer electronics, automotive systems, industrial equipment, and communications devices. The company focuses on innovation and providing solutions that enhance the efficiency and performance of electronic products.
Application
The TPS2051BDBVR is a power distribution switch commonly used in various applications due to its robust overcurrent protection and thermal shutdown features. Key application areas include:
1. USB Port Power Management: Ensures safe power delivery to USB devices by protecting against short circuits and overcurrent conditions.
2. Consumer Electronics: Used in devices such as laptops, tablets, and smartphones for power management.
3. Battery-Powered Equipment: Helps in efficient power distribution in portable devices.
4. Industrial Control Systems: Provides reliable power protection in complex control systems.
5. Telecommunications Equipment: Ensures consistent power supply and protection in communication devices.
These applications leverage the device's ability to manage power efficiently while protecting against faults.
1. USB Port Power Management: Ensures safe power delivery to USB devices by protecting against short circuits and overcurrent conditions.
2. Consumer Electronics: Used in devices such as laptops, tablets, and smartphones for power management.
3. Battery-Powered Equipment: Helps in efficient power distribution in portable devices.
4. Industrial Control Systems: Provides reliable power protection in complex control systems.
5. Telecommunications Equipment: Ensures consistent power supply and protection in communication devices.
These applications leverage the device's ability to manage power efficiently while protecting against faults.
Package
The TPS2051BDBVR is a power distribution switch from Texas Instruments, available in the SOT-23-6 package type. This small-outline transistor package is designed for compact and efficient circuit integration, ideal for space-constrained applications.
