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MB39A123 Datasheet(PDF) 1 Page - Fujitsu Component Limited.

No. de Pieza. MB39A123
Descripción  6 ch DC/DC Converter IC with Synchronous Rectification
Descarga  44 Pages
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Fabricante  FUJITSU [Fujitsu Component Limited.]
Página de inicio  http://edevice.fujitsu.com/fmd/en/index.html
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MB39A123 Datasheet(HTML) 1 Page - Fujitsu Component Limited.

 
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DS04-27257-1E
FUJITSU SEMICONDUCTOR
DATA SHEET
Copyright©2006 FUJITSU LIMITED All rights reserved
ASSP For Power Supply Applications
6 ch DC/DC Converter IC with
Synchronous Rectification
MB39A123
■ DESCRIPTION
MB39A123 is a 6-channel DC/DC converter IC using pulse width modulation (PWM) , and it is suitable for up
conversion, down conversion, and up/down conversion. MB39A123 is built in 6 channels into BCC-48++/LQFP-
48P package and this IC can control and soft-start at each channel. MB39A123 is suitable for power supply of
high performance potable instruments such as a digital still camera (DSC).
■ FEATURES
• Supports for step-down with synchronous rectification (ch.1)
• Supports for step-down and up/down Zeta conversion (ch.2 to ch.4)
• Supports for step-up and up/down Sepic conversion (ch.5, ch.6)
• Negative voltage output (Inverting amplifier) (ch.4)
• Low voltage start-up (ch.5, ch.6) : 1.7 V
• Power supply voltage range
: 2.5 V to 11 V
• Reference voltage
: 2.0 V
± 1%
• Error amplifier reference voltage : 1.0 V
± 1% (ch.1) , 1.23 V ± 1% (ch.2 to ch.6)
• Oscillation frequency range
: 200 kHz to 2.0 MHz
• Standby current
: 0
µA (Typ)
• Built-in soft-start circuit independent of loads
• Built-in totem-pole type output for MOS FET
• Short-circuit detection capability by external signal (
−INS terminal)
• Two types of packages (BCC-48 pin : 1 type, LQFP-48 pin : 1 type)
■ APPLICATIONS
• Digital still camera(DSC)
• Digital video camera(DVC)
• Surveillance camera
etc.


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