Power Management ICs | MB39C308 | MB39C316 | MB39A145/138 | MB39C022 | MB39C313 |

Power Management IC for Portable Devices
1-Channel DC/DC Converter + 1-Channel Low-Noise LDO

MB39C022G/ MB39C022J MB39C022L/ MB39C022N

MB39C022

An optimal IC for power management systems in portable devices with one built-in channel of DC/DC step-down converter for digital circuits and one built-in channel of low-noise LDO for analog circuits.

The DC/DC conversion circuit adopts the PFM/PWM mode to improve efficiency under light load. The current mode architecture is also adopted to achieve high-speed load response. The LDO circuit is optimal for power supplies of analog circuits such as RF circuit as it satisfies the low-noise requirement.

It can also be used in products adopting one cell of Li-ion battery as the power supply, the input voltage range is from 2.5V to 5.5V.

Two power management systems of a DC/DC Converter and LDO is in a 10-pin package of 3.0mm x 3.0mm. The built-in switching FET enable the construction of a power management system at a low BOM cost. There are four variations of the fixed output voltage in the LDO block.