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MB3891 Datasheet(PDF) 1 Page - Fujitsu Component Limited.

Part No. MB3891
Description  Power Management IC for GSM Mobile Phone
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Maker  FUJITSU [Fujitsu Component Limited.]
Homepage  http://edevice.fujitsu.com/fmd/en/index.html
Logo FUJITSU - Fujitsu Component Limited.

MB3891 Datasheet(HTML) 1 Page - Fujitsu Component Limited.

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DS04-27801-1E
FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP For Power Management Applications (Mobile Phones)
Power Management IC
for GSM Mobile Phone
MB3891
s
s
s
s DESCRIPTION
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 both 3 and 5 Volt technology. The
circuit contains a charger for a rechargeable Lithium coin cell of a Real Time Clock.
A complex control circuit is built in to generate main reset and to turn on and off the different LDO’s.
s
s
s
s 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
• Power on reset function
• 3 V/5 V SW for SIM-Card
• SIM interface function
• Backflow prevention function for Battery-Backup
• Temperature prevention function
s
s
s
s PACKAGE
64-pin plastic LQFP
(FPT-64P-M03)


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