- Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs
- Synchronous Buck-Boost DC/DC Converter BD83070GWL Evaluation Board
The BD83070GWL was developed to be the de facto standard for low power eco devices used in compact battery-driven applications. Original control technology (X Ramp PWM Control) enables seamless buck-boost transition while built-in low current circuitry achieves an industry-best power conversion efficiency of 97% during operation (200mA load current) along with class-leading 2.8uA current consumption. This contributes to longer operating time in compact battery-driven devices - by as much as 1.14x over standard products during standby (100uA load current).
In recent years, the proliferation of battery-driven electronic devices has increased the demand for smaller components that can provide the necessary design flexibility and space for integrating new functions while minimizing power consumption to maximize battery life.
In response, ROHM developed a power supply IC that meets market needs by leveraging a vertically integrated production system utilizing in-house analog design expertise and specialized power processes. At the same time, high efficiency ultra-low-power boost (BU33UV7NUX) and buck (BD70522GUL) power supply ICs are available that allow users to significantly extend the operating time of battery-powered applications. With the new BD83070GWL, ROHM expands its offering with a buck-boost IC featuring industry-leading performance.
ROHM is committed to leveraging superior analog technologies to develop power-saving high performance power supply ICs that contribute to greater energy efficiency.
|Functions||Part No.||Current Consumption||Input Voltage||output Voltage||Max. Output Current||Operating Frequency||Max. Efficiency||Package|
|0.6 ～ 4.5V||3.3V||50mA
(3mm x 2mm)
|Buck||BD70522GUL||0.18µA||2.5 ～ 5.5V||1.2, 1.5, 1.8, 2.0, 2.5, 2.8, 3.0, 3.2, 3.3V||500mA||1MHz||90%
(1.76mm x 1.56mm)
|Buck-Boost||BD83070GWL||2.8µA||2.0 ～ 5.5V||2.5, 3.3V||1000mA||1.5MHz||97%
(1.2mm x 1.6mm)
Combining low current circuit that provides ultra-low current consumption and fast response and an optimized switching control function adapts to different load conditions to reduce loss results in a best-in-class current consumption of 2.8μA.
[Patent Nos. 2016-253301, 2016-253303]
◇Coin battery equipped sets (i.e. IoT)
◇Li-ion battery devices, including smartphones, tablets, and PCs
◇Battery-driven equipment such as toys and electric toothbrushes
Contributes to long-term operation in virtually any compact battery-powered application, regardless of functions or operating conditions
The BD83070GWL converter is a power supply solution designed for battery powered devices. It can operate at pulse frequency modulation (PFM) to suppress loss and current consumption during light load which has 2.8μA quiescent current at no load. Capable to support up to 1A output on pulse width modulation (PWM) and provides high efficiency for heavy load.