FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-27236-3E
ASSP For Power Supply Applications
(DC/DC Converter for DSC/Camcorder)
4-ch DC/DC Converter IC
with Synchronous Rectification
MB39A110
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DESCRIPTION
The MB39A110 is a 4-channel DC/DC converter IC using pulse width modulation (PWM). This IC is ideal for up
conversion, down conversion, and up/down conversion.
This is built-in 4 ch in TSSOP-38P package and operates at 2 MHz Max. Each channel can be controlled, and
soft-start.
This is an ideal power supply for high-performance portable devices such as digital still cameras.
This product is covered by US Patent Number 6,147,477.
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FEATURES
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Supports for down-conversion and up/down Zeta conversion (CH1 to CH3)
Supports for up-conversion and up/down Sepic conversion (CH4)
For synchronous rectification (CH1, CH2)
Power supply voltage range : 2.5 V to 11 V
Reference voltage : 2.0 V
±
1
%
Error amplifier threshold voltage : 1.23 V
±
1%
High-frequency operation capability: 2 MHz (Max)
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)
One type of package (TSSOP-38 pin : 1 type)
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APPLICATIONS
• Digital still camera(DSC)
• Digital video camera(DVC)
• Surveillance camera
etc.
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FUJITSU [ FUJITSU COMPONENT LIMITED. ]
