RT8109 - Richtek

RT8109 5V to 12V Single Synchronous Buck PWM Controller

The RT8109 is a single-phase synchronous buck PWM DC-DC controller designed to drive two N-MOSFETs. It provides a highly accurate, programmable output voltage precisely regulated to low voltage requirement with an internal 0.6V ±1% reference. The RT8109 uses a single feedback loop voltage mode PWM control for fast transient response. The high driving capabil.

Features

 Single IC Supply Voltage ( 5V to 12V).
 Drive Two N-MOSFETs
 Fixed Operating Frequency at 300kHz
 Voltage Mode PWM Control with External Feedback Loop Compensation
 Over Current Protection by Sensing MOSFET RDS(ON)
 Dual Mode Regulation Control Standalone Mode (FB regulating to close to internal reference 0.6V) Tracking Mode (FB following PI input)
 Power Good Indication
 On/Off Control
 Full 0 to 90% Duty Cycle
 RoHS Compliant and Halgen Free Applications
 Mother Boards and Desktop Servers
 Graphic Cards
 Switching Power Supply
 Generic DC-DC Power Regulator Pin Configurati.