Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | SWIFT™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 17V |
| Voltage-Output(Min/Fixed) | 0.6V |
| Voltage-Output(Max) | 15V |
| Current-Output | 8A |
| Frequency-Switching | 200kHz ~ 1.6MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 14-VFQFN Exposed Pad |
Обзор
Description
The TPS54821RHLR is a high-efficiency, synchronous step-down DC-DC converter from Texas Instruments. It is part of the TPS54821 series and is designed for use in applications requiring compact size and high performance. This converter can deliver up to 8 A of output current and operates over an input voltage range of 4.5 V to 17 V, making it suitable for a wide variety of power supply applications.
Key features include an adjustable output voltage range from 0.6 V to 7 V, a fixed switching frequency of 500 kHz, and advanced control loop architecture for fast transient response. The device also supports various protection mechanisms such as overcurrent, overvoltage, and thermal shutdown to ensure reliable operation. Its compact VQFN (RHL) package and integrated MOSFETs contribute to minimizing the solution footprint.
The TPS54821RHLR is well-suited for use in telecom, networking, computing, and consumer electronics, where efficient power conversion and space-saving designs are critical.
Key features include an adjustable output voltage range from 0.6 V to 7 V, a fixed switching frequency of 500 kHz, and advanced control loop architecture for fast transient response. The device also supports various protection mechanisms such as overcurrent, overvoltage, and thermal shutdown to ensure reliable operation. Its compact VQFN (RHL) package and integrated MOSFETs contribute to minimizing the solution footprint.
The TPS54821RHLR is well-suited for use in telecom, networking, computing, and consumer electronics, where efficient power conversion and space-saving designs are critical.
Equivalent
The TPS54821RHLR is a buck converter from Texas Instruments. Equivalent products from other manufacturers might include:
1. LM2676 by Texas Instruments - Similar power range, slightly different features.
2. MP24943 by Monolithic Power Systems - Comparable in application.
3. LT8610 by Analog Devices - Similar functionality.
4. NCP3170 by ON Semiconductor - Similar output current capability.
Always verify pin compatibility and electrical characteristics before substituting.
1. LM2676 by Texas Instruments - Similar power range, slightly different features.
2. MP24943 by Monolithic Power Systems - Comparable in application.
3. LT8610 by Analog Devices - Similar functionality.
4. NCP3170 by ON Semiconductor - Similar output current capability.
Always verify pin compatibility and electrical characteristics before substituting.
Features
The TPS54821RHLR is a high-performance synchronous step-down DC-DC converter designed by Texas Instruments. It features a wide input voltage range of 4.5V to 17V, making it suitable for various applications. The device delivers up to 8A of continuous output current with high efficiency, owing to its integrated high-side and low-side MOSFETs. It operates with a fixed-frequency, current-mode control that ensures fast transient response and stability.
Key features include an adjustable output voltage range from 0.6V to 7V, a 600 kHz switching frequency, and a soft-start capability to limit inrush current during startup. It also supports adjustable switching frequency and external compensation, providing design flexibility. The TPS54821RHLR has built-in protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout. Its compact 3.5mm x 3.5mm VQFN package makes it suitable for space-constrained applications. Overall, it is ideal for powering processors, FPGAs, DSPs, and other digital circuits in industrial, communications, and consumer electronics.
Key features include an adjustable output voltage range from 0.6V to 7V, a 600 kHz switching frequency, and a soft-start capability to limit inrush current during startup. It also supports adjustable switching frequency and external compensation, providing design flexibility. The TPS54821RHLR has built-in protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout. Its compact 3.5mm x 3.5mm VQFN package makes it suitable for space-constrained applications. Overall, it is ideal for powering processors, FPGAs, DSPs, and other digital circuits in industrial, communications, and consumer electronics.
Pinout
The TPS54821RHLR is a DC-DC converter from Texas Instruments. It comes in a 20-pin VQFN package. The device is designed for high-efficiency step-down conversion and features integrated MOSFETs. Key functions include:
1. Input Voltage Range: Supports a wide input voltage range.
2. Output Voltage Regulation: Provides adjustable output voltage.
3. Current Capability: Delivers up to 8 A of continuous output current.
4. Switching Frequency: Operates at a fixed switching frequency for stability.
5. Efficiency: Offers high efficiency over a range of loads.
6. Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout.
The pin configuration and specific functions include connections for power inputs and outputs, feedback, enable/disable control, and internal compensation. For precise pin functions and layout, refer to the device datasheet.
1. Input Voltage Range: Supports a wide input voltage range.
2. Output Voltage Regulation: Provides adjustable output voltage.
3. Current Capability: Delivers up to 8 A of continuous output current.
4. Switching Frequency: Operates at a fixed switching frequency for stability.
5. Efficiency: Offers high efficiency over a range of loads.
6. Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout.
The pin configuration and specific functions include connections for power inputs and outputs, feedback, enable/disable control, and internal compensation. For precise pin functions and layout, refer to the device datasheet.
Manufacturer
The TPS54821RHLR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in a wide range of electronic devices. They are known for their work in the electronics industry, particularly in the development of analog chips and embedded processors, which are crucial components in sectors such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is recognized for its innovation and contributions to the advancement of modern electronics, making it a key player in the global semiconductor market.
Application
The TPS54821RHLR is a synchronous buck converter designed for various applications requiring efficient power management. Its primary application areas include:
1. Telecommunications: Used in equipment for stable voltage regulation and power efficiency.
2. Networking: Powers routers, switches, and other networking devices.
3. Industrial Automation: Supports control systems and machinery requiring reliable power management.
4. Computing: Suitable for powering CPUs, GPUs, and memory in servers and desktops.
5. Consumer Electronics: Used in devices like set-top boxes and gaming consoles for efficient power conversion.
6. Automotive: Provides power management solutions in infotainment and advanced driver-assistance systems (ADAS).
This versatility makes it ideal for applications needing robust power delivery and efficiency.
1. Telecommunications: Used in equipment for stable voltage regulation and power efficiency.
2. Networking: Powers routers, switches, and other networking devices.
3. Industrial Automation: Supports control systems and machinery requiring reliable power management.
4. Computing: Suitable for powering CPUs, GPUs, and memory in servers and desktops.
5. Consumer Electronics: Used in devices like set-top boxes and gaming consoles for efficient power conversion.
6. Automotive: Provides power management solutions in infotainment and advanced driver-assistance systems (ADAS).
This versatility makes it ideal for applications needing robust power delivery and efficiency.
Package
The TPS54821RHLR is a DC-DC buck converter from Texas Instruments, packaged in a 3.5 mm x 4.5 mm, 20-pin VQFN (Very Thin Quad Flat No-Lead) package. This compact package allows for efficient thermal performance and is suitable for space-constrained applications.
