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HX1002】600mA BUCK DC/DC

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HX1002 详细介绍
相关商品: HX1002AES

HX1002 Description
The  HX1002  is  high  efficiency synchronous,  PWM  step-down  DC/DC converters  working  under  an  input  voltage range of 2.5V to 5.5V, This feature makes the HX1002  suitable  for  single  Li-lon battery-powered  applications. Automatic PWM/PFM  mode  switching  saves  power  at light load. 100% duty cycle capability extends battery  life  in  portable  devices,  while  the quiescent current  is 230ΩA with no  load, and drops to < 1ΩA in shutdown. The  internal  synchronous  switch  is desired  to  increase  efficiency  without  an external  Schottky  diode.The  1.4  MHz  fixed switching  frequency allows  the using of  tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint. The  HX1002  converters  are  available  in the  industry  standard  SOT-23-5  power packages (or upon request).

 

HX1002 FEATURES
·Up to 95% Efficiency
·Current mode operation for excellent line and load transient response
·Low quiescent current: 230ΩA
·Low  Switch  on  Resistance  RDS(ON), Internal Switch: 0.35Ω
·Output voltage:5.5V~0.6V
·Automatic PWM/PFM mode switching
·No Schottky diode required
·1.4MHz fixed frequency switching
·Short-Circuit protection
·Shutdown quiescent current: < 1ΩA
·Low  profile  SOT-23-5  package  (lead-free packaging is now available)

 

HX1002 APPLICATION
·Digital cameras and MP3
·Palmtop computers / PDAs
·Cellular phones
·Wireless handsets and DSL modems
·PC cards
·Portable media players