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TPS54331QDRQ1
+Lista de MateriaisIC REG BUCK ADJUSTABLE 3A 8SOIC
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FabricanteTexas Instruments
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Peça do Fabricante #TPS54331QDRQ1
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Pacote SOIC (D)-8
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | Automotive, AEC-Q100, SWIFT™, Eco-Mode™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.5V |
| Voltage-Input(Max) | 28V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 25V |
| Current-Output | 3A |
| Frequency-Switching | 570kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Visão Geral
Description
The TPS54331QDRQ1 is a high-efficiency step-down DC-DC converter from Texas Instruments, designed for automotive and industrial applications. It operates within a wide input voltage range of 3.5V to 28V, making it versatile for various power supply systems. The device delivers up to 3A output current, supporting applications that require significant power.
Key features include a fixed switching frequency of 570 kHz, which allows for a smaller external component size and reduced total solution cost. The device also integrates a high-side MOSFET, minimizing the need for external components and improving overall efficiency. Its advanced features include overcurrent protection, thermal shutdown, and an adjustable output voltage via an external resistor divider.
Additionally, the TPS54331QDRQ1 supports a low-dropout operation mode, allowing the output voltage to remain in regulation even when the input voltage is close to the output voltage. This converter is designed to be robust, with built-in protection features and a wide operating temperature range, making it suitable for demanding environments.
Key features include a fixed switching frequency of 570 kHz, which allows for a smaller external component size and reduced total solution cost. The device also integrates a high-side MOSFET, minimizing the need for external components and improving overall efficiency. Its advanced features include overcurrent protection, thermal shutdown, and an adjustable output voltage via an external resistor divider.
Additionally, the TPS54331QDRQ1 supports a low-dropout operation mode, allowing the output voltage to remain in regulation even when the input voltage is close to the output voltage. This converter is designed to be robust, with built-in protection features and a wide operating temperature range, making it suitable for demanding environments.
Equivalent
The TPS54331QDRQ1 is a 3.5A step-down (buck) DC-DC converter from Texas Instruments. Equivalent products from other manufacturers might include:
1. LM2596 from Texas Instruments: A well-known 3A step-down converter.
2. MP1584 from Monolithic Power Systems: A compact 3A step-down converter.
3. L4973 or L4975 from STMicroelectronics: 3.5A and 5A step-down converters, respectively.
4. AP1509 from Diodes Incorporated: A 3A DC-DC buck converter.
Ensure compatibility with specific application requirements when selecting alternatives.
1. LM2596 from Texas Instruments: A well-known 3A step-down converter.
2. MP1584 from Monolithic Power Systems: A compact 3A step-down converter.
3. L4973 or L4975 from STMicroelectronics: 3.5A and 5A step-down converters, respectively.
4. AP1509 from Diodes Incorporated: A 3A DC-DC buck converter.
Ensure compatibility with specific application requirements when selecting alternatives.
Features
The TPS54331QDRQ1 is a 3.5-A, step-down switching regulator from Texas Instruments, designed for automotive applications. It operates over a wide input voltage range of 3.5 V to 28 V, making it versatile for various power supply applications. Key features include a high-efficiency pulse-width modulation (PWM) operation, with a fixed frequency of 570 kHz, which helps reduce the size of external components. It incorporates a low-dropout mode for increased efficiency at light loads, and an internal soft-start function to limit inrush current during startup.
The device offers integrated overcurrent protection with cycle-by-cycle current limiting, and thermal shutdown protection for reliable operation. It is also equipped with a low-power shutdown mode that reduces the supply current to 1.3 µA. The TPS54331QDRQ1 is AEC-Q100 qualified, ensuring its suitability for automotive applications. The regulator is housed in a thermally enhanced, 8-pin SOIC package, allowing for effective thermal management in space-constrained environments.
The device offers integrated overcurrent protection with cycle-by-cycle current limiting, and thermal shutdown protection for reliable operation. It is also equipped with a low-power shutdown mode that reduces the supply current to 1.3 µA. The TPS54331QDRQ1 is AEC-Q100 qualified, ensuring its suitability for automotive applications. The regulator is housed in a thermally enhanced, 8-pin SOIC package, allowing for effective thermal management in space-constrained environments.
Pinout
The TPS54331QDRQ1 is a 3.5 A, 28 V, step-down (buck) converter from Texas Instruments, typically used in automotive and other applications requiring high efficiency and compact size. It comes in an 8-pin SOIC package. The pin functions are as follows:
1. BOOT: Bootstrap capacitor connection for the gate drive of the high-side MOSFET.
2. VIN: Input voltage supply pin.
3. EN: Enable input; used to turn the regulator on or off.
4. COMP: Compensation pin; used to stabilize the control loop.
5. GND: Ground reference for the device.
6. VSENSE: Feedback input for output voltage regulation.
7. RT/CLK: Sets the switching frequency or synchronizes it to an external clock.
8. SW: Switch node; connected to the inductor and the source of the high-side MOSFET.
This configuration supports a wide input voltage range and provides a regulated output voltage with high efficiency, making it suitable for various power management applications.
1. BOOT: Bootstrap capacitor connection for the gate drive of the high-side MOSFET.
2. VIN: Input voltage supply pin.
3. EN: Enable input; used to turn the regulator on or off.
4. COMP: Compensation pin; used to stabilize the control loop.
5. GND: Ground reference for the device.
6. VSENSE: Feedback input for output voltage regulation.
7. RT/CLK: Sets the switching frequency or synchronizes it to an external clock.
8. SW: Switch node; connected to the inductor and the source of the high-side MOSFET.
This configuration supports a wide input voltage range and provides a regulated output voltage with high efficiency, making it suitable for various power management applications.
Manufacturer
The TPS54331QDRQ1 is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. These are used in a wide range of electronic applications, including industrial, automotive, personal electronics, and communication equipment. TI is known for its focus on developing analog chips and embedded processors, which are integral components in many electronic devices. The company has a significant presence in the global semiconductor industry and is recognized for its innovation and engineering excellence.
Application
The TPS54331QDRQ1 is a step-down DC-DC converter often used in automotive and industrial applications. Key application areas include automotive infotainment systems, navigation units, and cluster displays due to its ability to handle high input voltages and provide stable output. Additionally, it is used in industrial power supplies and communication systems, where efficient power management is critical. The device's high efficiency and compact size make it suitable for portable devices and consumer electronics that require reliable power conversion.
Package
The TPS54331QDRQ1 is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with PowerPAD. This package type is designed to enhance thermal performance and is suitable for automotive applications, as indicated by the "Q1" in the part number, signifying AEC-Q100 automotive qualification.
