Multi-Output PMIC with Large Current and Lower Noise

Toshiba Corporation's Storage & Electronic Devices Solutions Company today launched the TC7739FTG, a general purpose, multi-output system power IC equipped with dc-dc power supplies and linear regulators and a load switch. The TC7739FTG includes two dc-dc converters (ch1 is 1.05 V (initial value), 2MHz, 2A maximum, and ch2 is 3.30 V (initial value), 1.5MHz, 2A maximum) plus four LDOs (ch3 is 1.15V (initial value), 0.7A maximum, ch4 is 1.50V (initial value), 0.6A maximum, ch5 is 1.80V (initial value), 0.2A maximum, and ch6 is 3.30V (initial value), 0.06A maximum) plus a load switch that operates over an input voltage range of 3.0V to 3.6V with an RDS(on) of 62 mΩ (typ.).

Mass production will start at the end of this month. The ability to change output voltage and the rising sequence through the I2C bus ensures the IC can support diverse applications. Applications are expected to include information devices such as smartphones and tablets.

As tablets and other mobile devices boost processing speeds, they require power supplies for low voltages and large current drives. They also require multi-application power supplies, and must also reduce noise to compensate for downsizing of PCBs.

Toshiba’s new multi-output system power IC offers a high efficiency, large current drive with 2-ch dc-dc converters, 4-ch serialized (linear) regulators for noise reduction, and 1-ch load switch. Each dc-dc converter drives with a different oscillation frequency, reducing the switching noise peak.

Main features include: Step-down DC-DC converters (2 ch) + LDO (4 ch) + Load SW (1 ch); Configurations of output voltage and sequence through I2C bus; and Small package: QFN32 (5×5 mm).