供应SPC3501移动电源6脚升压IC

     The SPC3501 is a high efficiency, fixed frequency 550KHz, current mode PWM boost DC/DC converter which  could  operate  battery  such  as  input  voltage down to 2.5V.   The converter output voltage can be adjusted  to  a  maximum  of  5.25V  by  an  external resistor  divider.   Besides  the  converter  includes  a 0.08Ω  N-channel  MOSFET  switch  and  0.12Ω P-channel  synchronous  rectifier.   So  no  external Schottky  diode  is  required  and  could  get  better efficiency near 95%. 
           The converter is based on a fixed frequency, current mode,  pulse-width-modulation  PWM  controller  that goes automatically into PSM mode at light load.When converter operation into discontinuous mode, the  internal  anti-ringing  switch  will  reduce interference and radiated electromagnetic energy.  
           The SPC3501 is available in a space-saving SOT-23-6 package for portable application.

 

Features
  High Efficiency up to 95%
  Low R
DS(ON) Integrated Power MOSFET
  NMOS 80mΩ / PMOS120mΩ
  Wide Input Voltage Range: 2.5V to 5.5V
  Fixed 550KHz Switching Frequency
  Low-Power Mode for Light Load Conditions
  ±2.0% Voltage Reference Accuracy
  PMOS Current Limit for Short Circuit Protection
  Low Quiescent Current
  Output Ripple under 200mV. (Scope Full 
Bandwidth)
  Fast Transient Response
  Built-In Soft Start Function
  Over-Temperature Protection with Auto Recovery
  Output Overvoltage Protection
  Space-Saving SOT-23-6 Package

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