ROHM has developed the "BD83070GWL" type DC/DC converter with significant energy saving advantages.

ROHM (headquartered in Kyoto, Japan), one of the world's leading semiconductor manufacturers, has developed a pull-voltage DC/DC converter *1) "BD83070GWL" with built-in MOSFET for mobile devices, wearable devices and IoT devices. This product achieves ultra-high efficiency and ultra-low consumption current.

"BD83070GWL" is an ultra-low-power lift-voltage power supply IC developed for small battery-driven electronic equipment and targeted at "benchmark version of low-power environmental protection components".The product is built-in MOSFET with low loss, and configured with low power consumption current circuit, when various battery drive equipment (electric toothbrush and shaver, etc.) work (load current 200mA), the power conversion efficiency is up to 97%, and the consumption current is only 2.8 A, in the rise and fall voltage power supply IC field also reached A very high level.Therefore, compared with the ordinary product efficiency greatly improved application in standby (load current 100 A), battery life can be extended by 1.53 times (ROHM survey data), very helpful to extend the life of A variety of small battery-driven electronic devices.

The sample of this product has been sold since April 2019 (the sample price is 300 yen/piece, excluding tax), and it is planned to be put into mass production temporarily in October 2019 at the scale of 1 million pieces per month.The production base of the preliminary process is ROHM Hamamatsu Co., Ltd. (Hamamatsu city, Japan), and the production base of the later process is ROHM Apollo Co., Ltd. (higashi city, Japan).In addition, the evaluation board "bd83070gwl-evk-001", which is equipped with this product, is also available online at the same time as this press release. Customers can purchase it from Ameya360, icHub and Sekorm.

In the future, ROHM will continue to use the advantages of simulation technology to develop energy-saving and high-performance power IC, contributing to the energy conservation of the society.

<Background > 

In recent years, battery-powered electronic devices such as mobile devices, wearable devices and IoT devices have been rapidly popularized.Moreover, to increase design flexibility and ensure space for new functions, the power consumption of the components on these products should be reduced to the limit to achieve miniaturization and longer battery life.

All the time, ROHM makes full use of simulation design technology, power system technology and vertical integration production system advantages, committed to the development of market demand for power IC.For mobile devices, there are also boost power IC "BU33UV7NUX" and step-down power IC "BD70522GUL", which are high efficiency and low power consumption, very helpful to extend the battery drive application life.This time, the product lineup has added ultra-high performance lifting voltage power IC, can meet the needs of more applications.

< feature details >

The new product "BD83070GWL" as 1.2mm x 1.6mm small lifting voltage power IC, helps to equip the battery or small battery equipment to achieve long time drive, such as in standby (load current 100 A), compared with ordinary products, the battery life can be extended by 1.53 times.This product has the following features:

1.High conversion efficiency up to 97% is achieved in a wide load current range

Through the built-in adopted power system technology (including 0.13 m BiCDMOS low loss of MOSFET, in all sorts of battery-powered devices (such as electric toothbrushes and razors) run time (when the load current is 200 ma), to achieve high power conversion efficiency up to 97%, within the scope of other lighter load to the maximum load 100 mu (A ~ 1 A) also implements the high conversion efficiency as high as 90% above.

Moreover, ROHM's unique control technology "X Ramp PWM control" can realize seamless switching of input voltage.

2. In the field of lifting voltage power supply IC, only 2.8 A ultra-low consumption current is achieved, which belongs to the top level in the industry

The product adopts low-consumption current circuit with ultra-low consumption current and high-speed response performance, and optimizes switch control according to load to reduce loss.

By condensing ROHM low consumption current simulation technology advantage, in the rise and fall voltage power supply IC field, to achieve the low consumption of power as low as 2.8 A.

< application example >

IoT devices and other electronic devices equipped with button batteries; smart phones, tablets and other electronic devices equipped with lithium ion batteries; toys, electric toothbrushes and other electronic devices equipped with dry batteries

It is suitable for a variety of applications equipped with small batteries, regardless of application and operating conditions.

<power IC product lineup for mobile devices with ultra-high energy saving performance >