Toshiba Corporation's Storage & Electronic Devices Solutions Company has launched the TC7738WBG, a multi-function system power IC suited for the power supply of SSD components, such as the SoC core block, IO blocks, NAND flash memory, DRAM, and various sensors. Sample shipments start immediately with mass production shipments scheduled for the end of January next year.
The TC7738WBG is a multi-output power supply IC that incorporates a 6-channel dc-dc converter, a 2-channel LDO power supply and an input protection switch. In systems that use SSD, the voltage differs depending on the interface or application. The new IC allows the input voltage mode setting and output voltage of each channel to be changed simply by changing pin settings, enabling use in numerous systems.
In a typical system, the power supply input line is generally protected by a dedicated IC. Toshiba’s new power IC incorporates this same function as an input protection switch with low-input voltage, over-voltage detection, and a soft start function to prevent inrush current.
The new IC has a function to control the dc-dc converter by automatic switching between pwm and pfm operations according to the output load, and realizes highly efficient characteristic in both heavy and light load systems. This allows the IC to support various applications, including portable devices. The TC7738WBG supports both 3.3V and 5V systems by changing pin settings. It is packaged in a WCSP45 and measures 3.31mm x 2.91mm.
