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CS1 Fiches technique(PDF) 1 Page - Fujitsu Component Limited.

No de pièce CS1
Description  2ch DC/DC converter IC with PFM/ PWM synchronous rectification
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Fabricant  FUJITSU [Fujitsu Component Limited.]
Site Internet  http://edevice.fujitsu.com/fmd/en/index.html
Logo FUJITSU - Fujitsu Component Limited.

CS1 Fiches technique(HTML) 1 Page - Fujitsu Component Limited.

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Copyright©2011 FUJITSU SEMICONDUCTOR LIMITED All rights reserved
2011.12
FUJITSU SEMICONDUCTOR
DATA SHEET
DS405-00007-1v0-E
FUJITSU SEMICONDUCTOR CONFIDENTIAL
ASSP for Power Management Applications
2ch DC/DC converter IC
with PFM/ PWM synchronous rectification
MB39A214A
DESCRIPTION
MB39A214A is a N-ch/ N-ch synchronous rectification type 2ch Buck DC/DC converter IC equipped with
a bottom detection comparator for low output voltage ripple. It supports low on-duty operation to allow
stable output of low voltages when there is a large difference between input and output voltages. It also
allows the high switching frequency setting, enabling the downsized peripheral circuits and low-cost
configuration. MB39A214A realizes ultra-rapid response and high efficiency with built-in enhanced
protection features. It is most suitable for the power supply for ASIC or FPGA core, input/output devices, or
memory.
FEATURES
High efficiency
Frequency setting by internal preset function : 310 kHz, 620 kHz, 1 MHz
High accuracy reference voltage
:
± 0.7% (Ta = + 25 °C)
VIN Input voltage range
: 6 V to 28 V
Output voltage setting range
: 0.7 V to 5.3 V
Possible to select the automatic PFM/PWM selection mode or PWM-fixed mode
PAF frequency limitation function (Prohibit Audio Frequency) : > 30 kHz (Min)
Built-in boost diode, external fly-back diode not required
Built-in discharge FET
Built-in over voltage protection function
Built-in under voltage protection function
Built-in over temperature protection function
Built-in over current limitation function
Soft-start circuit without load dependence
Current sense resistor not required
Built-in synchronous rectification type output steps for N-ch MOS FET
Standby current
: 0 µA (Typ)
Package
: TSSOP24 (4.4 mm 6.5 mm 1.2 mm [Max])
APPLICATIONS
Digital TV
Photocopiers
STB
BD, DVD players/recorders
Projectors
etc.


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