With the explosive growth in AI computing power demands and the continuous expansion of cloud computing infrastructure, server systems are placing higher demands on the efficiency, integration, and reliability of power management chips. As key components that supply power to core elements of server motherboards—such as the CPU, memory, and chipset—synchronous buck regulators directly impact the system’s stable operation and overall power consumption performance. As a professional supplier of electronic components, Shenzhen Mingjiada Electronics Co., Ltd. maintains a long-term stock of the full range of Infineon synchronous buck regulators, covering product series such as the OptiMOS™ IPOL integrated point-of-load regulators, the SupIRBuck® series, and the TDA388xx series, providing a complete selection of devices with output currents ranging from 3A to 40A for server power supply design.
Why Choose Infineon Synchronous Buck Regulators?
Infineon synchronous buck regulators employ an advanced fast Constant On-Time (COT) control mode, ensuring rapid transient response while minimizing the number of passive components and saving PCB space. The product series incorporates a variety of built-in protection features, including pre-biased startup, thermally compensated current limiting, overvoltage protection (OVP), undervoltage protection (UVP), and thermal shutdown, ensuring system safety even in the event of a fault. With their high integration, high efficiency, and high power density, Infineon’s synchronous buck regulators are widely used in servers, AI data centers, storage devices, telecom base stations, industrial PCs, and machine learning edge AI applications.
Mingjiada Electronics Supply List of Key Models for Infineon Synchronous Buck Regulators
I. OptiMOS™ IPOL Integrated Point-of-Load Regulator Series
This series is Infineon’s flagship product line for the server, storage, telecommunications, and data communications markets. It integrates a PWM controller with OptiMOS™ MOSFETs and supports output currents up to 40A. Mingjiada Electronics currently stocks the following major models:
40A Class:
TDA38840: OptiMOS™ IPOL 40A Single-Output High-Efficiency Buck Regulator 4.3V–17V input, fast COT control
TDA38640-0000: 40A Single-Voltage Synchronous Buck Regulator With SVID and I2C interfaces
TDA38740-0000: 40A single-voltage synchronous buck regulator with PMBus interface
TDA38640A-0000: 40A fully integrated synchronous buck regulator with SVID and I2C
TDA38740A-0000: 40A single-output synchronous buck regulator with PMBus interface
TDA38641A: 40A Single-Voltage Pin-Programmable Buck Regulator with SVID Interface, PG-IQFN-36 Package
TDA38540: OptiMOS™ IPOL 40A Stackable Synchronous Buck Regulator Single-Voltage Stackable Design
25A Class:
TDA38827: OptiMOS™ IPOL 25A Single-Output High-Efficiency Buck Regulator 4.3V–17V Input, Precision Reference Voltage 0.6V ±0.5%
TDA38725-0000: 25A single-voltage synchronous buck regulator with PMBus interface
TDA38725A-0000: 25A single-output synchronous buck regulator with PMBus interface, wide input voltage range 3.0V–17V
20A Class:
TDA38820: OptiMOS™ IPOL 20A Single-Output High-Efficiency Buck Regulator Internal Compensation, High Integration
TDA38825: 20A Fully Integrated High-Efficiency DC-DC Buck Regulator FAST COT Control, 2.7V–16V Input, PG-TSNP-21 Package
12A Class (TDA388xx Series):
TDA38812: 12A synchronous buck regulator, FAST COT control
TDA38813: 12A synchronous buck regulator, wide input voltage range 4V–16V
II. SupIRBuck® Series (with PMBus Digital Interface)
This series integrates a PWM controller and MOSFET, supports the PMBus interface for configuration and runtime control, features a 0.5% accurate reference voltage, and is suitable for servers, network communications, and distributed point-of-load architectures. Mingjiada supplies the following models:
IR38062M: Highly integrated 15A single-input-voltage synchronous buck regulator with PMBus interface
IR38063M: Highly integrated 25A single-input voltage synchronous buck regulator with PMBus interface
IR38064M: Highly integrated 35A single-input voltage synchronous buck regulator with PMBus interface
IR3448M: Highly integrated 16A synchronous buck regulator designed specifically for server applications
IR3899AM: 9A single-voltage synchronous buck regulator in an IQFN-24 package
IR3823AM: 3A synchronous regulator with a programmable switching frequency of 600 kHz to 2 MHz
Key Technical Advantages of Infineon’s Synchronous Buck Regulators
Wide Input Voltage Range: The OptiMOS™ IPOL series supports a wide input voltage range of 3.0 V to 17 V (with an external VCC), offering flexible adaptation to a variety of DC-DC application scenarios.
Fast COT Control Engine: Utilizes a proprietary fast constant on-time (COT) control scheme to deliver exceptional transient response while simplifying design and reducing the need for external compensation components.
High-Precision Output Regulation: A precision reference voltage of up to 0.6 V ± 0.5%, combined with an enhanced stability engine, ensures accurate and stable output voltage.
Programmable Switching Frequency: The switching frequency can be programmed in 200 kHz steps within the range of 400 kHz to 2 MHz; 16 selectable settings meet the needs of different applications.
Comprehensive Protection Features: Integrated overvoltage protection, undervoltage protection, thermally compensated internal OCP, thermal shutdown, and pre-biased startup provide system-level safety protection.
Typical Application Areas
Infineon’s synchronous buck regulators are widely applicable in the following scenarios:
Data center and AI data center solutions: Providing efficient power supply for high-performance processors and accelerator cards
Edge server solutions: Compact, high-density power supply designs
Telecom Infrastructure DC-DC Power Conversion: Power management for base stations and communication equipment
Storage Devices and Routers/Switches: Powering storage controllers and network chips
Industrial PCs and Machine Learning Edge AI: Highly reliable industrial-grade power solutions
Why Choose Mingjiada Electronics?
Shenzhen Mingjiada Electronics Co., Ltd. has been deeply involved in the electronic component distribution sector for nearly three decades. As a key distribution partner of Infineon, we offer the following core advantages:
Genuine Products, Stable Channels: Leveraging a global supply chain network and stable direct-from-manufacturer supply channels, all chips are fully traceable to their source.
Vast Inventory, Rapid Delivery: The company operates large warehousing centers in Shenzhen and Hong Kong, maintaining a stock of over 2 million popular models. We support shipment of small-batch samples within 4 hours and rapid dispatch of standard orders.
One-Stop BOM Fulfillment Service: In addition to Infineon synchronous buck regulators, Mingjiada also supplies a wide range of electronic components, including integrated circuits (ICs), 5G chips, new energy ICs, IoT chips, and automotive chips, providing customers with a one-stop procurement experience.
For more information on Infineon synchronous buck regulators or to inquire about sample pricing, please contact Mingjiada Electronics:
Website: www.integrated-ic.com
Phone: +86 13410018555
Email: sales@hkmjd.com
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