Power Electronics

Fast-Response Point of Load Converter ICs with Ultra-Miniature Packaging

Renesas Electronics Corporation has developed the RAA20770X Series of mini-POL converters for ASICs and other large-scale logic circuits in a wide variety of application fields, including personal computers, servers, industrial, office automation and networking equipment. The RAA20770X Series devices achieve the industry's highest level of miniaturization and power density. Renesas is now releasing six products with different current supply ratings and functionality.

the new RAA20770X devices perform high-efficiency power conversion during normal load and - typically 90 percent of the time - also execute the frequent transitions to low-power mode quickly. As a result, they reduce overall system power consumption and help enable an energy-efficient society.

the RAA20770X devices achieve a size reduction of about 75 percent compared to earlier Renesas products, featuring an ultra-miniature wafer-level chip size package that is essentially the same size as the chip itself. Furthermore, since nowired connections are required within the package, resistance in the wiring is reduced, which contributes to more efficient voltage conversion. The RAA20770X Series represents the first devices with this level of integration in this small a package size.

In the RAA20770X products, Renesas adopted a wafer-level chip size package to achieve POL devices that can supply large amounts of current in a miniature form factor making it possible to reduce the IC's internal wiring resistance and package wiring resistance to an absolute minimum. For example, in the RAA207701GBM, which has a maximum rated current of 10 A, the package size is an extremely small 2.7 ¡Ñ 3.4 mm, which corresponds to a roughly 75 percent reduction in package size compared to earlier Renesas SiP POL products. Furthermore the thermal resistance from the package surface to the chip junction area is an extremely low 1¢XC/W, allowing a high thermal dissipation design when used with a heat sink and air flow.

Samples of the RAA20770X Series POL Converter ICs started in December 2012. While the sample price for these new products will differ depending on the output capacity, the sample price for the RAA207700GBM with a maximum rated current of 15 A will be US$2.05 per unit. Mass production of the RAA20770X devices is scheduled to begin in March 2013 and is expected to reach a scale of 500,000 units per month in July 2013. (Pricing and availability are subject to change without notice.)

Renesas Electronics America Inc.
Part Number: RAA20770X

Hide comments

Comments

  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Publish