FR9809大电流降压芯片代理商

 Description
   FR9809 is a high-efficiency synchronous step-down DC/DC converter that employs a special process technique to obtain very low RDS(ON) for the internal metal–oxide–semiconductor field-effect transistor (MOSFET). The input operation voltage is in a wide range from 4.75V to 21V, and continuous load current capability is 5A. Control circuit is designed by a particular current mode which provides fast transient response and eases loop stabilization.
   This product has a very low standby current less than 1μA in shutdown mode. When the SHDN/S pin voltage is less than 0.4V, FR9809 will turn off. Fault protection includes over current protection (OCP), under voltage lockout protection (UVLO) and over temperature protection (OTP) function.

   This high-efficiency current mode step-down “Green Power Converter” offers the standard SOP-8 package with an exposed pad.

代理商：深圳市夸克微科技 郑先生 ：13528458039 QQ 2867714804

FR9809 规格书下载    - [ 芯片模块网，www.icmkw.com  规格书，PCB文件，模块板资料网站，让芯片更简单】

Features  High Efficiency up to 90%  Internal MOSFET R DS (ON): 110mΩ 20mΩ  Internal Compensation  Input Operation Voltage Range: 4.75V to 21V  5A Continuous Output Current  Output Voltage down to 0.805V  500KHz Oscillation Frequency  Sync to External Clock from 300KHz to 800KHz  Cycle-by-Cycle Current Limit  Under Voltage Lockout  Over-Temperature Protection with Auto Recovery  <1μA Shutdown Current  Thermal Enhanced SOP-8 (Exposed Pad) Package  RoHS Compliant

Applications  Networking Equipment  OLPC, Netbook  Distributed Power System  LCD Monitor, TV, STB  External HDD  Security System