The Industry’s Smallest Single-Package Power Supply Modules

23rd January 2012

ES Admin

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ROHM has recently announced the development of the BZ6A series of ultra-compact power supply modules that integrate an inductor, capacitors, and all the other components needed for power supply into a single package. The result is the smallest size* in the industry (2.3mm × 2.9mm × 1mm), making them suitable for high-density mounting applications.

In recent years, mobile devices, including smart phones, have become much more multifunctional, increasing the number of components along with the number of power sources needed within the circuit. The greater power requirements, along with the trend towards increased miniaturization, demand smaller, more efficient power supplies.

The BZ6A series integrates a BU9000X series 6MHz high-speed switching power supply LSI directly into the board and includes all necessary components in a single package. High performance is ensured in the industry’s smallest* form factor. The all-in-one configuration eliminates the need for external components, simplifying design time. Additional features include a wide input voltage range, from 2.3V to 5.5V, making them suitable portable devices utilizing 5V USB, as well as an output voltage range between 1.0V and 3.3V, ensuring compatibility with a variety of sets.

Key Features:

１） Ultra-compact, low-profile module: 2.9mm × 2.3mm (typ.), t = 1.0mm (max.)

２） High-speed 6MHz operation with 85%+ efficiency

３） Wide input voltage range: 2.3V to 5.5V

４） Automatic PWM/PFM mode switching

５） Soft start circuit and multiple protection circuits built in