회사 블로그 Genuine Stock Supply of TPS628681: 4A Synchronous Step-Down Converter with I²C Interface, Specifically Designed for Powering FPGA/CPU Cores and Optical Modules

Shenzhen Mingjiada Electronics Co., Ltd. has long specialised in the distribution of electronic components, committed to providing industry clients with high-quality, genuine chips available from stock. We currently have the TI (Texas Instruments) TPS628681ARQYR in stock; this is a 4A synchronous buck converter that combines high efficiency, a compact size and intelligent control. Housed in a 1.5mm x 2.5mm QFN package and featuring an I²C interface, this model is the ideal choice for meeting the demands of modern precision power supplies. We guarantee that all products are brand new and genuine, with reliable lead times. We welcome enquiries from both new and existing customers.

Key Advantages: DCS-Control Architecture and Digital Voltage Regulation

The TPS628681 belongs to TI’s range of high-frequency synchronous buck converters. Its core advantage lies in the DCS-Control (Direct Control and Seamless Conversion) topology, which enables the device to deliver fast transient response and tight output voltage accuracy across a wide load range. The chip incorporates low-resistance power MOSFETs of 11 mΩ and 10.5 mΩ, achieving efficiency exceeding 90% at an output voltage of 0.9 V.

The chip supports a wide input voltage range of 2.4 V to 5.5 V and delivers an output current of up to 4 A. It supports dynamic voltage scaling (DVS) via an I²C interface, allowing the output voltage to be finely adjusted in 5 mV steps within the range of 0.4 V to 1.675 V; it even supports step adjustment in lower voltage ranges, providing exceptional flexibility for powering microprocessor and FPGA cores.

Typical Applications

The TPS628681’s high power density and intelligent voltage regulation capabilities enable it to play a key role in several cutting-edge fields:

Power supply for FPGA, CPU and ASIC cores: Modern FPGAs and ASICs demand extremely high transient response of the core voltage (Vcore) when computing power fluctuates. The TPS628681’s rapid transient response capability and dynamic voltage regulation via I²C perfectly match the voltage requirements of high-performance processors under varying loads, ensuring stable system operation.

IP network cameras and video chipsets: In space-constrained camera modules, the device’s miniature 1.5 mm × 2.5 mm QFN package significantly reduces PCB footprint. At the same time, its Power Save Mode under light loads effectively extends the device’s battery life and reduces heat generation.

Solid-state drives (SSDs) and optical modules: The SSD controller and the DSP (digital signal processor) in optical modules are sensitive to power supply noise. The TPS628681 can be forced to operate in PWM mode to achieve minimal output voltage ripple, whilst providing an I²C data rate of up to 3.4 Mbps, facilitating real-time monitoring and adjustment of the power supply status.

LPDDR5 VDDQ Power Supply: As mobile computing demands for memory bandwidth and power consumption continue to rise, the precise voltage regulation provided by this chip is ideally suited for powering the VDDQ supply rail of LPDDR5 memory.

Technical Specifications and Reliability

Switching frequency: 2.4 MHz, allowing the use of smaller inductors to further reduce the solution’s footprint.

High precision: 1% output voltage accuracy, providing reliable protection for precision analogue circuits and high-speed digital logic.

Protection features: Integrated intermittent or latch-up short-circuit protection, thermal warning and thermal shutdown functions, with a window comparator-based ‘Power Good’ indication to ensure system safety.

Operating Temperature: Supports a wide temperature range from -40°C to +125°C, suitable for harsh industrial environments.

About Mingjiada Electronics

Shenzhen Mingjiada Electronics Co., Ltd. not only offers a comprehensive range of TI power management products but also boasts rapid response capabilities regarding genuine, in-stock inventory. Our services range from sample requests to bulk supply, and we are committed to providing cost-effective supply chain solutions for customers in industrial control, network communications, AI computing and automotive electronics.

For samples or bulk quotations, please contact our sales team immediately.

Company website: www.integrated-ic.com

Tel: 0755-83294757 / 13410018555

Email: sales@hkmjd.com

Tags: TPS628681ARQYR, TPS628681ARQY, TPS628681ARQ, TPS628681ARQYR, TPS628681A, TPS628681