Rohm Developed The World's Smallest Consumption Current 180na Dc/dc Converter.

ROHM, the world's well-known semiconductor manufacturer, is facing battery driven electronic devices such as mobile devices, wearable devices and IoT devices to develop a step-down DC/DC converter *1, a built-in MOSFET for the world's minimum consumption current, "BD70522GUL"."BD70522GUL" is an ultra-low power consumption IC designed to implement the keyword "button cell 10 year drive" in the IoT field. Under the vertical integrated production system of ROHM, the Nano Energy technology, which has the advantages of "circuit design", "layout" and "process" three advanced analog technology, has been used to realize the world's minimum consumption current 180nA (negative 9 power of n is 10). This makes the battery - driven time 1.4 times longer than the ordinary product when the load is unloaded, and helps the CR2025 and other button battery driven electronic devices run longer. In addition, in the widest range of industry (10 A to 500mA, from light load to maximum load), more than 90% power conversion efficiency is achieved.The product has been sold in October 2017 (the price of the sample is 300 yen / A: no tax) and is planned to be put into production on the scale of 1 million per month from March 2018. The production base of the previous process is ROHM Hamamatsu Corporation (Hamamatsu, Japan), and the production base of the latter stage is ROHM Apollo Co., Ltd. (Japan's Bridge City). In addition, this news release will also synchronize the start of this product "BD70522GUL" and the net sale of the evaluation board "BD70522GUL-EVK-101" carrying this product, which can be purchased from both AMEYA360 and Right IC.In the future, ROHM will continue to develop high-performance, high reliability products that use the advantages of analog technology to contribute to the energy saving of the whole society.BackgroundIn recent years, battery powered electronic devices such as smart phones and other mobile devices, wearable devices and IoT devices have gained popularity. Moreover, in order to improve the design flexibility of the product and to ensure the space used for the configuration of new functions, the power consumption of the components on these products is required to be reduced to the limit to achieve miniaturization and prolong the battery life. ROHM has been using the advantages of analog design technology and power system technology, and exerts the advantages of the vertical integration production system, and is committed to developing the power IC to meet the demand of the market. Once again, these advantages will be exploited to develop a power supply IC with ultra-low current consumption technology "Nano Energy".ParticularsThe new product "BD70522GUL" is an ultra-low power consumption buck power supply IC developed on the basis of the key word "button battery 10 year drive" in the IoT market. The product has the following characteristics, which is very helpful for long time driving of batteries equipped with batteries and small batteries.1. use Nano Energy technology to achieve the world's minimum consumption current 180nAThe ultra low consumption current technology "Nano Energy", which is born in the low consumption current, is created by using the unique control circuit developed by the new developed IC, the optimal analog component layout of the power supply IC, the BiCDMOS of the power system technology and the analog technology of the low consumption current. The lowest consumption current 180nA in the world is realized.Achieving the world's lowest consumption current makes battery drive time 1.4 times longer than normal products such as without load. (ROHM survey data)2. achieve high efficiency in a wider load current range.With the built-in low loss MOSFET, the load mode carries the Seamless Switching Mode Control (SSMC) function based on the automatic seamless switching of the load current. In the DC/DC converter with the consumption of 1 u A, the power conversion efficiency of more than 90% is achieved in the mo