FUJITSU has emphasized the development of power supply ICs for high-performance portable devices such as digital still cameras, and have developed products MB3785A/MB3825A/MB3827/MB3881/MB3883/MB39A 102. And now it has developed a 4-channel DC/DC converter IC, MB39A103, which is optimal for use in built-in multipurpose power supply systems used in high-performance portable devices.
The digital still camera market is expected with production of approximately 29.4 million devices for 2004 in worldwide. Higher performances are being achieved rapidly in such portable devices, there will be a strong demand for further downsized power supply components.
This product is a pulse width modulation type (PWM method) 4-channel DC/DC converter IC which is suitable for up conversion, down conversion and up / down conversion. Achievement of low voltage startup (1.7V) enables operation from a low voltage. With 4 built-in channels in TSSOP-30P/BCC-32P package, control and soft-start on each channel is possible. Furthermore, a soft-start circuit and a timer latch type short-circuit detection circuit are built in to prevent inrush current when power is turned on and overcurrent at output short-circuit. This product is an optimal power supply for high function, portable devices such as digital still cameras.
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