[Core recommendation] The column selects power supply solutions that have been verified by the market, from classic iterations to breakthrough new products, from high-precision power management IC to multi-phase parallel optimization, decoding the performance transition of each chip, to provide you with better power supply and protection solutions for your design.

Under the dual impetus of accelerating self-reliance in the information innovation industry and restructuring global supply chains, high-end computing platforms are imposing multidimensional stringent requirements on power systems. Take a domestically produced desktop CPU as an example; under its AVSBus bus architecture, the TDP power consumption reaches 70W. When supporting multi-core computing and high-intensity load scenarios, it places revolutionary demands on the transient response, dynamic voltage regulation, and energy efficiency optimization of power management chips.

This issue selects four high-integration power solutions, which overcome the problem of instantaneous load fluctuation of computing power chips through multi-phase parallel topology and intelligent voltage regulation algorithm, and realize the dynamic balance between high performance and low power consumption, so as to build a full-scene power supply moat for innovative devices. The products are ready for you to explore.

IS6202A + IS6809A efficient power supply

Programme positioning: AVSBus Dynamic voltage regulation multi-phase V-CORE programme

The IS6202A is a dual-loop digital-analog hybrid multi-phase buck controller specifically designed for CPU voltage regulation. It can control up to 5-phase power stages in a single channel, compatible with PMBus, AVSBus, and SVID protocols, making it suitable for various CPU platform voltage regulation needs. The IS6809A is an integrated intelligent power stage with built-in power MOSFET and gate drivers, capable of delivering up to 70A output current.

Typical characteristics

IS6202A

• Dual output, supports 5+0/4+1 flexible phase configuration

• Adaptive adjustment in the wide frequency domain of 200kHz-2MHz

• Dynamic phase control and intelligent power state switching

• Fast transient response, ultra-high efficiency

IS6809A

• 3V to 16V wide input voltage range

• 100KHz-2MHz wideband adaptive adjustment

• Supports accurate current sampling, temperature sampling and fault alarm functions

• Efficient power conversion technology, conversion efficiency up to 92%

  

Core advantage

• Multi-phase parallel power supply technology supports continuous current output of up to 200A

• The conversion efficiency exceeds 92%, reducing the overall power consumption of the system

• Support dynamic voltage regulation and power consumption management functions

• UVLO/OVP/UVP/OCP/CAT_FLT/fault detection triple protection mechanism

IS6608A, fully integrated high frequency synchronous voltage reduction converter

Programme positioning: VDD/VDDQ, a parallel programme compatible with the PMBus protocol

IS6608A provides a solution with a small volume that can achieve up to 30A output current per phase over a wide input range and supports up to 8 chips in parallel for a peak output current of 240A.

Typical characteristics

• Input voltage: 3.3V-16V, output voltage: 0.4V-5.5V

• Efficiency can reach more than 90%

• Continuous output current of 30A and peak current of 35A

• Support parallel output, dynamic phase number automatic adjustment

• Load adjustment rate and linear adjustment rate with 0.5% voltage accuracy

• Optional switching frequencies of 400kHz, 600kHz, 800kHz and 1MHz

• Supports a variety of protection functions such as UVLO/OVP/UVP/OCP/NOCP

Core advantage

• Excellent current sharing and phase interleaving capabilities

• Fast transient response and simple loop compensation

• Minimize the use of external components to existing standards

IS6605H, high power density high frequency fully integrated synchronous buck converter

Programme positioning: VDD0V9 Ultra-small volume power supply unit

IS6605H 2mm x 3mm QFN packaging is adopted to provide an area optimized solution to achieve up to 6A output current and high efficiency within the range of output load current.

Typical characteristics

• Input voltage: 4V-16V, output voltage: 0.6V-5.5V

• 1μA typical static current (IQ)

• Programmable soft start time

• The efficiency can reach more than 90% under the load range

• Excellent load and line adjustment system, voltage accuracy is 0.5%

• Dual mode switching: Skip mode or CCM mode

• The switching frequency can be selected between 600kHz,1MHz,1.5MHz and 2MHz

• There is a PGOOD signal with open leakage output inside, which is used to indicate the working state of the chip

Core advantage

• High integration, minimum volume

• The unique TCOTTM control mode realizes fast transient response