Sunlord
http://www.sunlordinc.com
Ultra-large Current Assembled Power Inductor of TLVR
WPZ Series New Product Launch
Outline
The WPZ series of assembled inductors for ultra large current TLVR application adopts a fully
automatic assembly process. Through the use of ultra-low loss magnetic materials and patented
insulation design process, it can achieve higher saturation current and more accurate inductance
controlling in similar products with the same size. At the same time, its insulation capacity also ranks
high among similar products. In general, it has the characteristics of ultra-low loss, ultra-high current,
ultra-low DCR, low leakage inductance, etc. At the same time, Sunlord has the advantage of
automatic production line, which makes its products have incomparable advantages in consistency.
At this stage, the conventional 0906/1206mm products in the market can be provided. For the first
time, in order to cope with the latest power stage, new 1205mm products have also been introduced.
It can be applied to TLVR power supply applications of various X86 servers in the market, as
well as TLVR application requirements of other architecture servers. It is mainly used for power
supply scenarios such as servers and GPU cards.
Background
Previously, CPU power consumption was only 165W, and VRM power supply mode was 6-
phase. Therefore, the structure of horizontal air gap is dominant
Now, the CPU power consumption exceeds 200W, which puts forward higher requirements for
the heat dissipation capacity and efficiency of the inductor.
As a result, the vertical air gap structure has been developed and widely used. But still in VRM
mode.
In the future, based on the requirements of server manufacturers to improve efficiency and
reduce costs, the concept of TLVR will emerge as the times require. It has the obvious advantages
of fast transient response, reducing the number of back-end capacitors to reduce costs, and has
won the favor of major manufacturers.
Among them, the special coupling inductor and compensation inductor of TLVR occupy the key
position.
VR
VR
TLVR
Sunlord
http://www.sunlordinc.com
Product Features
◼ Effectively improve the withstand voltage value (meet the specification of 100Vdc/2S/2mA,
meanwhile, it can be increased to 200Vdc/2S/2mA)
◼ Fully automatic production line with high consistency
◼ High saturation and high frequency magnetic materials are used to reduce AC loss and
effectively improve conversion efficiency.
Application
◼ TLVR power supply for server CPU, GPU, FPGA, etc
TLVR Technology Overview
◼ Server power supply modes include VRM power supply (previous technology) and TLVR
power supply (new power supply technology)
VRM power supply mode:
(Image source: Infineon DCDC_Converter_How_Infineon _TLVR_solves_PDN_problem-ApplicationNotes-
v01_00-EN)
◆ Features: Each phase can be regarded as a separates Buck circuit, and then the output
current is summarized as the total current.