Allicdata Part #: | 296-29668-2-ND |
Manufacturer Part#: |
TPS84320RUQR |
Price: | $ 0.00 |
Product Category: | Power Supplies - Board Mount |
Manufacturer: | Texas Instruments |
Short Description: | IC BUCK SYNC ADJ 3A 47B1QFN |
More Detail: | Non-Isolated PoL Module DC DC Converter 1 Output 0... |
DataSheet: | TPS84320RUQR Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 3 (168 Hours) |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Type: | Non-Isolated PoL Module |
Number of Outputs: | 1 |
Voltage - Input (Min): | 4.5V |
Voltage - Input (Max): | 14.5V |
Voltage - Output 1: | 0.8 ~ 5.5 V |
Voltage - Output 2: | -- |
Voltage - Output 3: | -- |
Current - Output (Max): | 3A |
Applications: | ITE (Commercial) |
Features: | OCP, OTP, UVLO |
Operating Temperature: | -40°C ~ 85°C |
Efficiency: | 95% |
Mounting Type: | Surface Mount |
Package / Case: | 47-BQFN Module |
Size / Dimension: | 0.59" L x 0.35" W x 0.11" H (15.0mm x 9.0mm x 2.8mm) |
Supplier Device Package: | 47-B1QFN (15x9) |
Control Features: | Enable, Active High |
Base Part Number: | TPS84320 |
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DC-DC converters are used in numerous applications, from powering microprocessors in computers to efficiently utilizing renewable energy resources in grid systems. The TPS84320RUQR, in particular, is a high-performance synchronous rectified DC-DC step-down converter with 1-A output current. In this article, we will discuss the application field and working principle of the TPS84320RUQR.
Application Fields
The TPS84320RUQR converter is designed for a wide variety of applications requiring low-voltage output, such as USB power supply, cellular phones, digital cameras, and other battery-powered devices. It is also well-suited for powering external memories, such as Flash, SRAM, and ROM, in a wide range of application areas, including automotive, industrial, and consumer/embedded systems. The converter\'s dual-mode control design ensures excellent light load efficiency and minimal ripple and noise.
Working Principle
The TPS84320RUQR is a synchronous rectified step-down (buck) DC-DC converter. Its topology consists of an inductor, two MOSFETs in series and a diode. The device is controlled by a voltage mode pulse width modulation (PWM) technique. When the DC-input voltage (VIN) is applied to the device, VIN is inputted into the PWM logic circuit that generates control signals for the two MOSFETs and the feedback circuit to regulate the output voltage (VOUT). During the first half of the switching period, the upper MOSFET is conducting while the lower MOSFET is off. This turns the inductor into a source of energy and causes it to store energy. During the second half of the period, the lower MOSFET is on and the upper MOSFET is off. This causes the inductor to release energy, and due to the Zener diode the energy is stored in the output capacitors. The feedback circuit monitors the output voltage and adjusts the PWM duty cycle to maintain a constant VOUT.
Conclusion
The TPS84320RUQR is a high-performance 1-A synchronous rectified step-down DC-DC converter designed for a variety of low-voltage applications. It utilizes a voltage mode PWM technique to regulate VOUT. Additionally, its dual-mode control design ensures excellent light load efficiency and minimal ripple and noise. Therefore, the TPS84320RUQR is one of the most efficient and reliable DC-DC converters available for battery-powered mobile and embedded applications.
The specific data is subject to PDF, and the above content is for reference
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