The TPS54620RGYR is a high-efficiency synchronous buck converter from Texas Instruments, designed for applications requiring compact size and reliable performance. It operates over a wide input voltage range of 4.5 V to 17 V and delivers up to 6 A of continuous output current. With integrated MOSFETs and a switching frequency up to 1.6 MHz, it offers fast transient response and high power density.
What Are the Key Features of the TPS54620RGYR?
The TPS54620RGYR is a synchronous buck converter that integrates high-side and low-side MOSFETs, reducing the need for external components and improving efficiency. It supports input voltages from 4.5 V to 17 V and provides an adjustable output voltage as low as 0.8 V. The device delivers up to 6 A of continuous output current, making it suitable for various applications, including industrial and consumer electronics.
Key Specifications:
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.5 V to 17 V |
| Output Voltage Range | 0.8 V to 15 V |
| Maximum Output Current | 6 A |
| Switching Frequency | 200 kHz to 1.6 MHz |
| Package | 14-pin VQFN (3.5×3.5 mm) |
How Does the TPS54620RGYR Compare to Similar Models?
When selecting a buck converter, it’s essential to consider factors like input/output voltage range, output current capability, and efficiency. The TPS54620RGYR stands out due to its high current output and wide input voltage range.
Comparison with Similar Models:
| Model | Input Voltage Range | Output Current | Switching Frequency | Package Size |
|---|---|---|---|---|
| TPS54620RGYR | 4.5 V to 17 V | 6 A | Up to 1.6 MHz | 3.5×3.5 mm |
| TPS54618RTER | 2.95 V to 6 V | 6 A | Up to 2.2 MHz | 3×3 mm |
| TPS54561DPRR | 4.5 V to 60 V | 5 A | Up to 1.1 MHz | 4×4 mm |
The TPS54620RGYR offers a balance between high current output and compact size, making it a versatile choice for various applications.
What Applications Benefit from Using the TPS54620RGYR?
The TPS54620RGYR is suitable for applications requiring efficient power conversion in a compact form factor. Typical applications include:
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Point-of-load regulators for high-performance DSPs, FPGAs, and ASICs
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Industrial and consumer electronics
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Telecommunications and networking equipment
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Distributed power systems
Its high efficiency and integrated features make it ideal for systems where space and power efficiency are critical.
What Are the Thermal and Protection Features?
The TPS54620RGYR includes several features to ensure reliable operation:
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Thermal Shutdown: Protects the device from overheating by disabling the output when the junction temperature exceeds a specified threshold.
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Overcurrent Protection: Cycle-by-cycle current limiting on the high-side FET prevents damage during overload conditions.
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Undervoltage Lockout (UVLO): Ensures the device operates only when the input voltage is above a certain level, preventing erratic behavior.
These features enhance the reliability and safety of the power supply system.
Buying Tips
When purchasing the TPS54620RGYR or similar components, consider the following:
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Authorized Distributors: Buy from reputable sources to ensure authenticity and quality.
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Stock Availability: Check for current stock levels to avoid delays in your project.
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Pricing: Compare prices across distributors to find competitive rates.
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Technical Support: Choose suppliers that offer robust technical support and resources.
Fly-Wing Technology (HK) Co., Limited has been a reliable electronic components source since 2012, assisting customers in finding hard-to-find parts quickly and accurately. With warehouses in Hong Kong and a global supplier network, they offer competitive prices and efficient procurement solutions.
Electronic Components Expert Views
“The TPS54620RGYR’s integration of high-side and low-side MOSFETs simplifies design and enhances efficiency, making it a go-to choice for engineers working on compact power solutions.”
— Electronics Design Engineer
FAQ
Q: Can the TPS54620RGYR be synchronized with an external clock?
A: Yes, it supports synchronization to an external clock within the 200 kHz to 1.6 MHz range.
Q: What is the quiescent current in shutdown mode?
A: The device has a low shutdown quiescent current of 2 µA, conserving power when not in operation.
Q: Is the output voltage adjustable?
A: Yes, the output voltage can be adjusted from 0.8 V up to 15 V using external resistors.
The TPS54620RGYR is a high-performance synchronous buck converter introduced by Texas Instruments. With its high efficiency, wide input voltage range, and flexible design options, it has become an ideal choice for many power management systems.
I. Key Features
- High Efficiency and Integration: The TPS54620RGYR integrates MOSFETs with 26mΩ and 19mΩ resistance, achieving a conversion efficiency of up to 94%, ensuring high efficiency under various load conditions.
- Wide Input Voltage Range: It supports an input voltage range of 4.5V to 17V, with the PVIN pin capable of operating as low as 1.6V, providing flexible power input options.
- Adjustable Switching Frequency: The switching frequency ranges from 200kHz to 1.6MHz, allowing designers to optimize efficiency and component size according to specific application requirements.
- Synchronization Capability: It can synchronize to an external clock, facilitating system timing management and electromagnetic interference control.
- Accurate Voltage Reference: It includes a built-in voltage reference of 0.8V ±1%, ensuring high-precision output voltage.
- Low-Power Design: With a quiescent current as low as 2μA in shutdown mode, it is suitable for power-sensitive applications.
- Comprehensive Protection Features: Including monotonic start-up, adjustable soft start, undervoltage lockout, overvoltage protection, and thermal shutdown, ensuring safe system operation under abnormal conditions.
- Compact Packaging: Housed in a 3.5mm × 3.5mm QFN package, it saves board space and is easy to apply in compact designs.
II. Application Fields
- Communication Equipment: Used for power management in base stations, routers, and other devices, providing stable power supply.
- Industrial Automation: Used in programmable logic controllers, industrial computers, and other equipment for efficient power conversion.
- Test and Measurement Instruments: Provides low-noise, stable power for high-precision instruments.
- Medical Devices: Ensures power reliability and low power consumption in medical electronic devices.
- Automotive Electronics: Suitable for various electronic control units in vehicles, providing stable power support.
III. Working Principle
The TPS54620RGYR uses constant frequency peak current mode control. By monitoring the switch current signal and adding a compensation slope, it prevents subharmonic oscillations and ensures stable operation. Its internal phase-locked loop (PLL) allows synchronization to an external clock, providing flexible system integration options. The chip also integrates startup circuits and protection functions, ensuring stability and safety under various operating conditions.
IV. Usage Precautions
When using the TPS54620RGYR, the following points should be noted:
- Power Supply Design: Ensure the stability of the input power supply and the rational layout of decoupling capacitors to minimize the impact of power noise on chip performance.
- PCB Layout: Optimize the PCB layout to ensure the integrity of key signals and reduce electromagnetic interference.
- Thermal Management: In high-power applications, consider heat dissipation measures to ensure the chip operates within the specified temperature range.
- Parameter Configuration: Configure the chip’s parameters correctly according to specific application requirements, such as switching frequency and output voltage.
V. Conclusion
The TPS54620RGYR stands out in the field of synchronous buck converters with its high efficiency, wide input voltage range, and rich features. Whether in communication equipment, industrial automation, or medical electronics, it provides stable and reliable power management capabilities. For engineers pursuing efficient and flexible designs, the TPS54620RGYR is truly a trustworthy choice.
