MB3891 Datasheet (Fujitsu Media Devices)

MB3891, Power Management

MB3891 is intended to be used in future GSM-phones, Dual Band phones and Dual Mode phones.

It contains all the necessary functions to support all Digital, Analog and RF blocks in these phones.

A Charge-pump including a Logic Level Translation circuit is built in to support SIM-card (SmartCard) of bo

MB3891 Features

* Supply voltage range : 3 V to 5.5 V

* Low power consumption current during standby : 400 µA (MAX)

* 6-channel low-saturation voltage type series regulator : 2.1 V/2 channels, 2.8 V/3 channels, 2.5 V/2.8 V switch

* Error prevention function during Low voltage