800mA，0.6VFB降压转换器 TP3308_TP3308_深圳市利盛达科技有限公司

DESCRJPTION
The  TP3308  is  a  constant  frequency,  current  mode,  PWM    step-down    converter.    The    device    integrates    a  main    switch    and    a    synchronous    rectifier    for    high  efficiency.  The  2.0V  to  6.5V  input  voltage  range  makes  the  TP3308  ideal  for  powering  portable  equipment  that  runs  from  a  single  cell  Lithium-Ion  (Li+)  battery  or  3-cell  NiMH/  NiCd  batteries.  The  output  voltage  can  be  regulated  as  low  as  0.6V.  The  TP3308  supports  up  to  800mA  load  current  and  can  also  run  at  100%  duty  cycle  for  low  dropout  applications,  extending  battery  life  in  portable  systems.
Switching    frequency    is    internally    set    at    1.5MHz,  allowing  the  use  of  small  surface  mount  inductor  and  capacitors.  The  internal  synchronous  switch  increases  efficiency    while    eliminate    the    need    for    an    external  Schottky  diode.  The  TP3308  is  available  in  a  low  profile  5  lead  SOT23-5  package.


FEATURES
*  High  Efficiency  :  96%
*  1.5MHz  Constant  Switching  Frequency
*  800mA  Available  Load  Current,1.2A  peak  current
*  130µA  Typical  Quiescent  Current
*  2.0V  to  6.5V  Input  Voltage  Range
*  Adjustable  Output  Voltage  as  Low  as  0.6V
*  100%  Duty  Cycle  Low  Dropout  Operation
*  No  Schottky  Diode  Required
*  Short  Circuit  and  Thermal  Protection
*  Over  Voltage  Protection
*  <1µA  Shutdown  Current
*  <10mV  ripple  with  2.2uH  inductor  and  10uF  capacity
*  RoHS  Compliant  and  100%  Lead(Pb)-Free

Applications
*  Portable  Media  Players/  MP3  Players
*  DVR
*  Portable  Instruments
*  FPGA  Core  Power  Supply

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800mA，0.6VFB降压转换器 TP3308

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