MB39A103 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – 4-Channel DC/DC Converter IC with Support for Low Voltage

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MB39A103
4-Channel DC/DC Converter IC
with Support for Low Voltage
MB39A103
A 4-channel DC/DC converter IC with pulse width modulation type
(PWM method) while achieving support for low voltage startup (1.7Vʙ).
Four built-in channels in a TSSOP-30P/BCC-32P package enable control and
soft-startup on each channel.
Product Description
FUJITSU has emphasized the development of power
supply ICs for high-performance portable devices such as
digital still cameras, and have developed products
MB3785A/MB3825A/MB3827/MB3881/MB3883/MB39A
102. And now it has developed a 4-channel DC/DC converter
IC, MB39A103, which is optimal for use in built-in multi-
purpose power supply systems used in high-performance
portable devices.
The digital still camera market is expected with production
of approximately 29.4 million devices for 2004 in worldwide.
Higher performances are being achieved rapidly in such
portable devices, there will be a strong demand for further
downsized power supply components.
This product is a pulse width modulation type (PWM
method) 4-channel DC/DC converter IC which is suitable
for up conversion, down conversion and up / down conversion.
Achievement of low voltage startup (1.7V_ʙ) enables
operation from a low voltage. With 4 built-in channels in
TSSOP-30P/BCC-32P package, control and soft-start on
each channel is possible. Furthermore, a soft-start circuit
and a timer latch type short-circuit detection circuit are
built in to prevent inrush current when power is turned on
and overcurrent at output short-circuit. This product is an
optimal power supply for high function, portable devices
such as digital still cameras.
Product Features
■ Support for down and up / down Zeta conversion
(channel 1)
■ Support for up and up / down Sepic conversion
(channel 2 to channel 4)
■ Low startup voltage (channel 4): 1.7V
■ Power supply voltage range: 2.5V to 11V
Photo 1 External View
2002 No.2 FIND Vol.20 91