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MB3807A - Power Management Switching

Datasheet Summary

Description

When data is written to or read from flash memory, it requires that the voltage at its power supply (VPP) be switched (to 12 V for writing and to 3.3 or 5.0 V for reading).

Features

  • Switching at low ON resistance For writing data: SWIN1 = 12 V, Ron = 0.3 Ω For reading data: SWIN2 = 5 V, Ron = 6.0 Ω SWIN2 = 3.3 V, Ron = 8.5 Ω.
  • Wide range of supply voltages: VCC = 2.7 to 5.5 V.
  • Prevention of reverse current from the load at switch-off time.
  • ON time controllable with external pin.
  • Break-before-make operation s.

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Datasheet preview – MB3807A

Datasheet Details

Part number MB3807A
Manufacturer Fujitsu Media Devices
File Size 123.19 KB
Description Power Management Switching
Datasheet download datasheet MB3807A Datasheet
Additional preview pages of the MB3807A datasheet.

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Full PDF Text Transcription

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FUJITSU SEMICONDUCTOR DATA SHEET DS04-27602-1E ASSP BIPOLAR Power Supply Power Management Switching IC (with flash memory power switching function) MB3807A s DESCRIPTION When data is written to or read from flash memory, it requires that the voltage at its power supply (VPP) be switched (to 12 V for writing and to 3.3 or 5.0 V for reading). The MB3807A is a power management switching IC, designed to be compatible with the PCMCIA digital controller, to switch the VPP voltage of flash memory. When the switch is turned on, optimum voltage is applied to the gate of the internal charge pump N-ch MOS switch, providing a constant amount of ON resistance.
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