Torex adds two DC/DC converters for slim devices

Two DC/DC converters announced by Torex Semiconductor are designed specifically for use in thin electronic devices. The XC9307 and XC9308 series of negative output voltage chargers are offered in small packages which measure 1.8 x 2.0 x 0.4mm. According to Torex, the mounting area is reduced by approximately 70%, from 65.25mm2 to 19.11mm2, compared to general negative voltage output DC/DC converters, for smaller, thinner electronic devices.

The DC/DC converters offer increased oscillating frequency to 2.5MHz and include the coils and capacitors required for DC/DC converters.

Compared to a charge pump type solution, the switching method of the XC9307 and XC9308 maintains a stable output voltage even when the input voltage fluctuates, continued Torex. In addition, they can support maximum output current 300mA (when VIN is 3.3V and VOUT is -3.0V.

Output voltage can be adjusted within the range of -1.2V to -6.0V using externally mounted resistors.

The PWM controlled XC9307 series is intended for applications where low noise is important. The PWM/PFM automatic switching controlled XCL304 XC9308 series is designed for applications where high efficiency at light load current and low noise at high load current is important.

Torex Semiconductor provides CMOS power management ICs (PMICs) targeted at battery powered and energy efficient applications. Torex specialises in CMOS analogue technology, with LDO voltage regulators, voltage detectors and DC/DC converters as the company’s core product offering.

The company is headquartered in Tokyo, Japan and has offices in the USA, Singapore and Europe

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