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MB3891

Features: • Supply voltage range : 3 V to 5.5 V• Low power consumption current during standby : 400 A (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• ...

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SeekIC No. : 004413320 Detail

MB3891: Features: • Supply voltage range : 3 V to 5.5 V• Low power consumption current during standby : 400 A (MAX)• 6-channel low-saturation voltage type series regulator : 2.1 V/2 channe...

MB3891 Data Sheet

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Part Number:
MB3891
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

• Supply voltage range                                           : 3 V to 5.5 V
• Low power consumption current during standby : 400 A (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


Pinout

Connection Diagram


Specifications

Parameter Symbol Condition Rating Unit
Min. Max.
Power supply voltage VBAT - 0.3 7 V
VCC-VSIM - 0.3 7 V
LDO regulator IO OUT1 pin - 120 mA
IO OUT2 pin - 50 mA
IO OUT3 pin - 100 mA
IO OUT4 pin - 100 mA
IO OUT5 pin - 50 mA
VSIMOUT chargepump IO VSIMOUT pin - 10 mA
Power dissipation
 PD Ta +25 °C - 800* mW
Storage temperature Tstg - -55 +125 °C
* : The packages are mounted on the dual-sided epoxy board(10 cm *10 cm)
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
                  temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.


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 of MB3891 is built in to generate main reset and to turn on and off the different LDO's.




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